JP3292828B2 - Radio wave detector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio wave detecting apparatus for classifying pulses of a plurality of received signals of radio waves arriving from a plurality of radio wave sources to identify the radio wave source.

[0002]

2. Description of the Related Art FIG. 23 is a block diagram showing a conventional radio wave detecting device, wherein 1 is a receiving antenna for receiving a signal from a radio wave emitting source such as a radar, and 2 is a received radio signal (hereinafter, referred to as an RF signal). A receiver for converting into an intermediate frequency band signal (hereinafter referred to as an IF signal), an A / D converter for converting the received IF signal from analog to digital data, and a digital signal for each pulse unit from the digital data A digital data extractor for extracting digital data to create extracted digital data; and a signal detector for calculating pulse frequency and pulse width from the extracted digital data created by the digital data extractor to create pulse data. , 6 compare the frequency and pulse width of each pulse of the pulse data generated by the signal detector 5, and determine the frequency and pulse width at which each pulse is considered to be the same. A frequency / pulse width classifier 7 for classifying the pulses into pulse trains having the following formulas: a radio wave for calculating the average frequency value and average pulse width value of the pulses belonging to each pulse train from the frequency and pulse width of each of the classified pulses. An emission source data detection processor 8 is provided for each of the radio emission sources stored in a radio emission source database 9 storing radio emission source data including a frequency range and a pulse width range of a transmission signal of a radio emission source such as various radars. The radio wave source that identifies the radio wave source by comparing the frequency range and pulse width range (radio wave source data) of the transmission signal with the average frequency value and average pulse width value detected by the radio wave source data detection processor 7 The discriminator 10 is a display processor that displays the name of each identified radio wave emission source and the radio wave emission source data.

Next, the operation will be described. RF signals from a plurality of emission sources received by the receiving antenna 1 are converted into IF signals by the receiver 2, converted into digital data by the A / D converter 3, and output to the digital data extractor 4. You. The digital data extractor 4 extracts only digital data exceeding a specified amplitude value from the digital data,
Extracted digital data is created for each pulse unit, and the extracted digital data is output to the signal detector 5. The signal detector 5 calculates the frequency and pulse width of each pulse, and creates pulse data in which the calculated frequency value and pulse width value are arranged in the order of each pulse. frequency. The pulse width classifier 6 assigns a classification number to a pulse which is regarded as having the same frequency value and pulse width value as the pulse belonging to the same pulse train, from the pulse input from the signal detector 5. The radio wave emission source data detection processor 7 outputs the frequency. Pulse width classifier 6
The average frequency and average pulse width of all the pulses belonging to the same pulse train are calculated from among the pulse data classified by. The radio wave source identification unit 8 stores each radio wave source data of the radio wave source database 9 storing the frequency range and the pulse width range of the transmission signal of the radio wave source, the calculated average frequency and the average pulse width, and Are compared, and if there is any within the range, the name of the radio wave emission source is extracted and output to the display processor 10 together with the radio wave emission source data (frequency and pulse width). The display processor 10 displays the identified radio wave source names and the radio wave source data on the screen.

[0004]

Since the conventional radio wave detection device is configured as described above, if the frequencies of a plurality of radio wave emission source signals are close to each other or if the frequencies are uneven, However, in the frequency classification, there is a possibility that erroneous detection such as detecting a pulse of another radio wave emission source as a pulse of the same radio wave emission source may be performed, and there is a problem that the radio wave emission source cannot be accurately identified. . In addition, when the pulse widths of the respective radio wave emission source signals are close to each other or the pulse widths are varied, in the pulse width classification, the pulse of another radio wave emission source is detected as a pulse of the same radio emission source. There is a possibility that such erroneous detection may be performed, and in this case also, the radio wave emission source cannot be accurately identified.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems. Even when a plurality of radio wave source signals having similar frequencies and pulse widths are congested and received, the radio wave source can be accurately detected. It is an object of the present invention to provide a radio wave detection device capable of identifying a radio wave.

[0006]

According to a first aspect of the present invention, there is provided a radio wave detecting apparatus comprising: a plurality of radio wave pulses coming from a plurality of radio wave emission sources ;
Providing a pulse component characteristic classifier that classifies each pulse into a plurality of pulse trains by comparing the variance with the difference, and from the frequency and pulse width of the pulse belonging to each pulse train classified by the pulse component characteristic classifier, The radio wave emission source of each pulse train is identified. In addition,
The “classified (plurality of) pulse trains” means that, for example, only pulse train A has a meaningful pulse train classified by pulse component characteristics or the like, such as pulse train A and pulse train B other than pulse train A. In other words, this includes the case where the number of identifiable radio wave emission sources is one, and the “classified pulse train” does not necessarily refer only to the pulse train identifiable by the radio wave emission source. The same applies to each of the second and subsequent claims.

According to a second aspect of the present invention, there is provided a radio wave detecting apparatus, wherein each pulse included in a pulse train of a plurality of radio waves arriving from a plurality of radio wave emitting sources has at least three or more points of a pulse rising portion.
Determine the sum of the amplitude differences, determine whether the pulse rise slope characteristics of each pulse is the same, provided a pulse rise slope characteristics classifier that classifies each of the pulses into a plurality of pulse trains, the pulse The radio wave emission source of each pulse train is identified from the frequency and pulse width of the pulses belonging to each pulse train classified by the rising slope characteristic classifier.

According to a third aspect of the present invention, there is provided a radio wave detecting apparatus, wherein each pulse included in a pulse train of a plurality of radio waves arriving from a plurality of radio wave emitting sources has at least three points or more at a pulse falling portion.
Determine the sum of the above amplitude differences, determine whether the pulse falling slope characteristics of each pulse is the same, and provide a pulse falling slope characteristic classifier that classifies each of the pulses into a plurality of pulse trains The radio wave emission source of each pulse train is identified from the frequency and pulse width of the pulses belonging to each pulse train classified by the pulse falling slope characteristic classifier.

According to a fourth aspect of the present invention, the radio wave detecting apparatus compares the variance between the amplitude of each pulse included in the pulse train of a plurality of radio waves arriving from the plurality of radio wave emitting sources and the difference between the amplitude values. > A pulse component characteristic classifier that classifies each pulse into a plurality of pulse trains, and a pulse rising part of each pulse
Calculate the sum of the amplitude differences of at least three points of
Whether the pulse rise slope characteristics of these pulses are the same
Determine whether, and pulse rising slope characteristic classifier for classifying each of the respective pulses to the plurality of pulse trains provided, pulses belonging to each pulse train classified by the above pulse component profile classifier and the pulse rising slope characteristic classifier The radio wave emission source of each pulse train is identified based on the frequency and the pulse width.

According to a fifth aspect of the present invention, the radio wave detecting apparatus compares the variance between the amplitude of each pulse included in a pulse train of a plurality of radio waves arriving from a plurality of radio wave emitting sources and the difference between the amplitude values. > A pulse component characteristic classifier that classifies each pulse into a plurality of pulse trains, and a pulse falling part of each pulse
Calculate the sum of the amplitude differences of at least three points of
Whether the pulse falling slope characteristics of these pulses are the same
Determine whether, and a pulse falling slope characteristics classifier for classifying each of the respective pulses to the plurality of pulse trains provided to each pulse train classified by the above pulse component profile classifier and a pulse falling slope characteristics classifiers The radio wave emission source of each pulse train is identified from the frequency and pulse width of the pulse to which it belongs.

According to a sixth aspect of the present invention, there is provided the radio wave detecting apparatus, wherein each pulse included in a pulse train of a plurality of radio waves coming from a plurality of radio wave emitting sources has at least three points or more at a pulse rising portion.
Determine the sum of the above amplitude differences, determine whether the pulse rise slope characteristics of each pulse is the same, a pulse rise slope characteristics classifier that classifies each of the pulses into a plurality of pulse trains, each pulse Of the pulse
Calculate the sum of at least three amplitude differences in the falling part
The pulse falling slope characteristics of each pulse are the same.
To determine whether an, and a pulse falling slope characteristics classifier for classifying each of the respective pulses to the plurality of pulse trains provided, classified by the above-described pulse rising slope characteristic classifier and a pulse falling slope characteristics classifiers The radio wave emission source of each pulse train is identified based on the frequency and pulse width of the pulse belonging to each pulse train.

In the radio wave detecting apparatus according to the present invention, the variance between the amplitude of each pulse included in the pulse train of a plurality of radio waves arriving from the plurality of radio wave emitting sources and the difference between the amplitude values is compared. > A pulse component characteristic classifier that classifies each pulse into a plurality of pulse trains, and a pulse rising part of each pulse
Calculate the sum of the amplitude differences of at least three points of
Whether the pulse rise slope characteristics of these pulses are the same
Determine whether, the pulse rising slope characteristic classifier for classifying the plurality of pulse trains each individual pulse of each pulse, the at least three points of the pulse trailing portion
Determine the sum of the amplitude differences, determine whether the pulse falling slope characteristics of each pulse is the same, and provide a pulse falling slope characteristic classifier that classifies each of the pulses into a plurality of pulse trains, From the frequency and pulse width of the pulses belonging to each pulse train classified by the pulse component characteristic classifier, the pulse rise slope characteristic classifier, and the pulse fall slope characteristic classifier, the radio wave emission source of each pulse train is identified. It was made.

The radio wave detecting device according to the present invention compares the variance between the amplitude of each pulse included in the pulse train of a plurality of radio waves coming from a plurality of radio wave emitting sources and the difference between the amplitude values. > A pulse component characteristic classifier that classifies each pulse into a plurality of pulse trains is provided, and the radio wave emission source of each pulse train is determined from the pulse component characteristics of the pulses belonging to each pulse train classified by the pulse component characteristic classifier. It is intended to be identified.

According to a ninth aspect of the present invention, there is provided a radio wave detecting apparatus, wherein each pulse included in a pulse train of a plurality of radio waves arriving from a plurality of radio wave emitting sources has at least three points or more at a pulse rising portion.
Determine the sum of the above amplitude differences, determine whether the pulse rise slope characteristics of each pulse is the same, provided a pulse rise slope characteristics classifier that classifies each of the pulses into a plurality of pulse trains, The radio wave emission source of each pulse train is identified from the pulse rising slope characteristics of the pulses belonging to each pulse train classified by the pulse rising slope characteristic classifier.

According to a tenth aspect of the present invention, there is provided the radio wave detecting device, wherein each pulse included in the pulse train of a plurality of radio waves arriving from the plurality of radio wave emitting sources has at least three points at a pulse falling portion.
By calculating the sum of the above amplitude differences, it is determined whether the pulse falling slope characteristics of each pulse are the same,
A pulse falling slope characteristic classifier for classifying each of the pulses into a plurality of pulse trains is provided. From the pulse falling slope characteristics of the pulses belonging to each pulse train classified by the pulse falling slope characteristic classifier, the pulse trains are used. The radio wave emission source is identified.

The radio wave detecting device according to the eleventh aspect compares the variance between the amplitude of each pulse included in a pulse train of a plurality of radio waves arriving from a plurality of radio wave emitting sources and the difference between the amplitude values. A pulse component characteristic classifier that classifies each of the above pulses into a plurality of pulse trains, and a pulse rise of each pulse
The sum of the amplitude differences of at least three points of the part
The pulse rise slope characteristics of each pulse are the same
Whether to determine, provided the pulse rising slope characteristic classifier for classifying each of the respective pulses to the plurality of pulse train, belonging to each pulse train classified by the above pulse component profile classifier and the pulse rising slope characteristic classifier The radio wave emission source of each pulse train is identified from the pulse component characteristics of the pulse and the pulse rising slope characteristics.

The radio wave detecting device according to the twelfth aspect compares the variance between the amplitude of each pulse included in the pulse train of a plurality of radio waves arriving from the plurality of radio wave emitting sources and the difference between the amplitude values. A pulse component characteristic classifier that classifies each of the above pulses into a plurality of pulse trains, and a pulse fall of each pulse
The sum of the amplitude differences of at least three points of the part
Pulse fall slope characteristics of each pulse are the same
A pulse falling slope classifier for classifying each of the pulses into a plurality of pulse trains, and determining each pulse train by the pulse component property classifier and the pulse falling slope classifier. The radio wave emission source of each pulse train is identified based on the pulse component characteristics and the pulse falling slope characteristics of the pulses belonging to.

According to a thirteenth aspect of the present invention, there is provided the radio wave detecting apparatus , wherein at least three points of a pulse rising portion of each pulse included in a pulse train of a plurality of radio waves coming from a plurality of radio wave emitting sources.
By calculating the sum of the above amplitude differences, it is determined whether the pulse rising slope characteristics of each pulse are the same,
A pulse rising slope characteristic classifier that classifies each of the above pulses into a plurality of pulse trains, and a pulse of each pulse .
Calculate the sum of at least three amplitude differences at the falling part
Umate, pulse falling slope characteristics of each pulse
Determine whether the same, and a pulse falling slope characteristics classifier for classifying each of the respective pulses to the plurality of pulse trains provided, classified by the above-described pulse rising slope characteristic classifier and a pulse falling slope characteristics classifiers The radio wave emission source of each pulse train is identified from the pulse rising slope characteristics and the pulse falling slope characteristics of the pulses belonging to each pulse train.

In the radio wave detecting device according to the present invention, the variance between the amplitude of each pulse included in the pulse train of a plurality of radio waves arriving from the plurality of radio wave emitting sources and the difference between the amplitude values is compared. A pulse component characteristic classifier that classifies each of the above pulses into a plurality of pulse trains, and a pulse rise of each pulse
The sum of the amplitude differences of at least three points of the part
The pulse rise slope characteristics of each pulse are the same
Determine whether or not, a pulse rising slope characteristic classifier that classifies each of the pulses into a plurality of pulse trains,
At least 3 points at the falling edge of each pulse
A pulse falling slope characteristic classifier that classifies each pulse into a plurality of pulse trains by determining whether the pulse falling slope characteristics of the respective pulses are the same. From the pulse component characteristics, the pulse rise and fall characteristics and the pulse fall and slope characteristics of the pulses belonging to each pulse train classified by the pulse component characteristics classifier, the pulse rise and fall characteristics classifier, and the pulse fall and slope characteristics classifier, The radio wave emission source of each pulse train is identified.

[0020]

Embodiments of the present invention will be described below with reference to the drawings.

Embodiment 1 FIG. 1 is a block diagram of a radio wave detecting apparatus according to Embodiment 1 of the present invention. 1 is a receiving antenna for receiving a signal from a radio wave emitting source such as a radar, and 2 is a received radio signal (hereinafter, referred to as a radio signal).
RF signal) is converted to an intermediate frequency band signal (hereinafter, IF signal).
3) an A / D converter for converting a received IF signal from analog to digital data; 4) extracting digital data for each pulse unit from the digital data; A signal detector for calculating pulse frequency and pulse width from the extracted digital data generated by the digital data extractor 4 to generate pulse data;
Reference numeral 6 denotes the frequency and the pulse width of each pulse of the pulse data created by the signal detector 5, which are classified into a pulse train composed of pulses having a frequency and a pulse width considered to be the same. A pulse width classifier 11 is a variance between a digital data amplitude of each pulse and a difference between the amplitude values.
And a pulse component characteristic classifier for classifying each pulse into a pulse train having the same type of pulse component, and comparing each pulse with the other pulse to determine whether each pulse belongs to each of the classified pulse trains. The radio wave source data detection processor 8 calculates the average frequency value and the average pulse width value as the radio wave source data from the frequency and the pulse width of the radio wave source data. The radio wave source data (frequency range and pulse width range) of the transmission signal from the radio wave source stored in the radio wave source database 9 storing the radio wave source data including the pulse width range, and the radio wave source data detection processing The radio wave source identification device 10 identifies the name of the radio wave source by comparing the radio wave source data detected by the detector 7 with the data and name of each radio wave source identified. It is a display processor that.

Next, the operation of the radio wave detecting device having the above configuration will be described. The reception antenna 1 receives a plurality of radio waves (RF signals) transmitted from radio wave emission sources such as various radars and outputs the radio waves to the receiver 2. The RF signal is converted into an IF signal by the receiver 2, then converted by the A / D converter 3 into a pulse amplitude value (digital data) for each sampling time, and output to the digital data extractor 4. The digital data extractor 4 extracts only digital data exceeding a specified amplitude value from the digital data, creates extracted digital data for each pulse unit, and uses the extracted digital data as a signal detector 5 and a pulse component characteristic classifier. 11 and output. As shown in FIG. 18, when the number of collected pulses is N, the digital data is divided into pulse units (pulse 1 to pulse N), and a predetermined sampling time (time 1 ~ Data extracted from the amplitude value PA at time n). FIG. 15 is a schematic diagram showing an example of extracted digital data in one pulse.
Is an enlarged and simplified version of FIG. FIG.
In 6, the portion of the sampling time 1 to p where the absolute value of the pulse amplitude value PA increases is the rising portion of the pulse, and the portion of the sampling time q to n where the absolute value of the amplitude value PA decreases is the pulse. Is the falling part.
In FIG. 16, noise portions before and after the pulse are omitted. The signal detector 5 calculates the frequency and pulse width of each of the pulses 1 to N and, as shown in FIG. 19, converts the pulse data in which the frequency value and the pulse width value calculated for each pulse are arranged in the order of each pulse. create. frequency.
The pulse width classifier 6 uses the pulse data input from the signal detector 5 to classify a pulse whose frequency value and pulse width value are considered to be the same for each pulse as pulses belonging to the same pulse train. And outputs the result to the pulse component characteristic classifier 11.

The pulse component characteristic classifier 11 first performs the following processing on each of the extracted digital data output from the digital data extractor 4 to create a dispersion diagram for each pulse. That is, the sampling time k (k = 1
To n) are PA _k , and the above PA _k
ΔPA _k = PA _k −PA
_k-1 is obtained, and a dispersion diagram showing pulse component characteristics as shown in FIG. 17 is created from the data PA _k and ΔPA _k .
The vertical and horizontal axes of this dispersion diagram are as follows. Vertical axis: ΔPA _k = (PA _k ) − (PA _k−1 ) Horizontal axis: PA _{k In} the dispersion diagram of FIG. 17, the elliptical portion has a constant amplitude value, and the sparse portion in the ellipse has a rising edge. In the portion and the falling portion, noise components are collected at the center of the ellipse. Note that the size of the ellipse differs depending on the pulse amplitude value and pulse width. After the creation of the dispersion diagram for all the pulses is completed, the pulse component characteristic classifier 1
Reference numeral 1 indicates that the dispersion diagrams of all the pulses are overlapped with each other in order from the first pulse, and in the overlapped dispersion diagram, the number of overlapping points (PA _k , ΔPA _k ) (the number of overlapping points) is counted. If the number of overlapping points exceeds the specified ratio, it is assumed that the pulses of the two dispersion maps superimposed are pulses belonging to the pulse train of the same radio wave emission source, and the same as the pulse component characteristic classification number cell as shown in FIG. Is assigned a classification number. When the number of overlapping points is equal to or less than the specified ratio, the pulses in the compared dispersion diagrams are determined to be pulses from different radio wave emission sources, and no pulse component characteristic classification number is assigned. The pulse component characteristic classifier 11 further includes a frequency. The frequency classification number and the pulse width classification number assigned by the pulse width classifier 6 are compared with the pulse component classification number assigned by the pulse component characteristic classifier 11, and only the classification numbers that match the above three classification numbers are pulse train numbers. And classifies each pulse into a plurality of pulse trains, and outputs the pulse train number, frequency data, and pulse width data of each pulse to the radio wave emission source data detection processor 7. The radio wave emission source data detection processor 7 calculates an average frequency and an average pulse width of all the pulses belonging to the same pulse train in the pulse data classified by the pulse component characteristic classifier 11. The radio wave source identifier 8 detects each radio wave source data (frequency range and pulse width range) of the radio wave source database 9 storing the frequency range and pulse width range of the transmission signal of the radio wave source, and The average frequency and average pulse width, which are the radio wave source data, are collated, and if there is any within the range, the radio wave source name is extracted and output to the display processor 10 together with the radio wave source data. Display processor 10
Displays the detected radio wave source data and the identified radio source name on the screen.

As described above, according to the first embodiment , the variance between the amplitude of each pulse included in the pulse train of a plurality of radio waves coming from a plurality of radio wave emission sources and the difference between the amplitude values is compared.
And a pulse component characteristic classifier 11 for classifying each of the pulses into a plurality of pulse trains. Based on the frequency and pulse width of the pulses belonging to each pulse train classified by the pulse component characteristic classifier 11, Since the radio wave emission source of each pulse train is identified, the classification of the pulses can be performed accurately, and even if the frequency and pulse width of multiple radio emission source signals are close to each other or vary, the radio emission source The accuracy of name identification can be improved.

Embodiment 2 In the first embodiment, the amplitude and amplitude value of each pulse
The variance with the difference is compared, and each pulse is classified into a plurality of pulse trains to identify the radio wave emission source of each pulse train. As shown in FIG. 2, the pulse component characteristic classification shown in FIG. Pulse rise slope characteristic in place of detector 11
Comparison, that is, at least
Also find the sum of the amplitude differences at three or more points, and
Whether the pulse rising slope characteristics are the same.
Disconnecting each of the above pulses by a plurality of times.
Pulse rising slope characteristic classifier 1 for classifying into pulse trains
2 is provided, each pulse is classified into a plurality of pulse trains, and the radio wave emission source of each pulse train is identified from the frequency and pulse width of the pulse belonging to each classified pulse train, thereby identifying the name of the radio wave emission source. Accuracy can be improved. Pulse rising slope characteristic classifier 12 is immediately
Specifically, the rising portion of each pulse of the digital data stored in the digital data extractor is extracted by the following processing to calculate the pulse rising characteristic, and each pulse is classified into pulses of the same radio wave emitting source. The processing is performed. First, as shown in FIGS. 20A and 20B, the rising of each pulse (pulses A and B in the figure) is set to n = 0, and the pulse amplitude value is stabilized from n = 0 and the peak continues. (E.g., n = 7) of each digital data (PA
i (A) and PAi (B); i = 1 to 7), and as shown in FIG. 20C, a difference PAi (A) −PAi (B) between the amplitude values at specified intervals is obtained. , The sum Δ (Δ = Σ | PAi) of the amplitude difference obtained from the sum of the absolute values
(A) −PAi (B) |, where Σ is the sum of i = 1 to 7. Next, the pulses whose sum Δ of the amplitude value differences of each pulse is equal to or less than a specified value are pulses belonging to the pulse train of the same radio wave emission source, and a classification number is assigned to the pulse rising slope classification number cell of the classification number shown in FIG. I do. If it exceeds the specified value, no pulse rise slope characteristic classification number is assigned. Pulse rising slope characteristic classifier 12
Is the frequency. The classification number assigned by the pulse width classifier 6 is compared with the classification number assigned by the pulse rising slope characteristic classifier 12, and only the classification number having the matching classification number is added as a pulse train number, and each pulse is subjected to a plurality of pulse trains. And the pulse train number, frequency data and pulse width data of each pulse are stored in the radio wave emission source data detection processor 7.
Output to Hereinafter, as in the first embodiment, the radio wave emission source of each pulse train is identified based on the frequency and pulse width of the pulse belonging to each classified pulse train.

Embodiment 3 FIG. In the second embodiment, each pulse is classified into a plurality of pulse trains by comparing the rising slope characteristics of the pulses of each pulse, and the radio wave emission source of each pulse train is identified. as shown in 3, in place of the pulse rising slope characteristic classifier 12 of Figure 2, Pas
Compare the falling slope characteristics, that is, pulse
Calculate the sum of at least three amplitude differences at the falling part
Umate, pulse falling slope characteristics of each pulse
By judging whether they are the same, each of the above
A pulse falling slope characteristic classifier 13 for classifying each of the pulses into a plurality of pulse trains may be provided, and each pulse may be classified according to the falling slope characteristic of the pulse. The pulse falling slope characteristic classifier 13 has three or more points from the falling edge of each pulse to the point where the pulse amplitude value becomes almost zero.
, The difference between the amplitude values at specified intervals is calculated, the sum of the absolute values is calculated, the amplitude value difference is calculated, and the amplitude value difference of each pulse is calculated. Are defined as pulses belonging to the pulse train of the same radio wave emission source, and a classification number is assigned to the pulse falling slope classification number cell of the classification number shown in FIG. If the value exceeds the specified value, no pulse falling slope characteristic classification number is assigned. The pulse falling slope characteristic classifier 13 calculates the frequency. The classification number assigned by the pulse width classifier 6 and the classification number assigned by the pulse falling slope characteristic classifier 13 are collated, and only the classification number with the matching classification number is added as a pulse train number to divide each pulse into a plurality. In addition to the classification into pulse trains, the pulse train number, frequency data and pulse width data of each pulse are output to the radio wave emission source data detection processor 7. Hereinafter, as in the first embodiment, the radio wave emission source of each pulse train is identified based on the frequency and pulse width of the pulse belonging to each classified pulse train.

Embodiment 4 In the first and second embodiments, the pulse component characteristic classifier 11 or the pulse rise / slope characteristic classifier 12 is individually used, each pulse is classified into a plurality of pulse trains, and the radio wave emission source of each pulse train is identified. However, as shown in FIG. 4, the pulse train is classified by using the pulse component characteristic classifier 11 and the pulse rising slope characteristic classifier 12 together.
The accuracy of pulse train classification can be further improved.
Note that, in FIG. The collation of the classification number assigned by the pulse width classifier 6 and the pulse component characteristic classifier 11 with the classification number assigned by the pulse rising slope characteristic classifier 12 is performed by the pulse rising slope characteristic classifier 12. The pulse rise slope characteristic classifier 12 and the pulse component characteristic classifier 11 may be exchanged, and the pulse component characteristic classifier 11 may collate the classification numbers and classify each pulse.

Embodiment 5 In the first and third embodiments, the pulse component characteristic classifier 11 or the pulse falling slope characteristic classifier 13 is individually used, each pulse is classified into a plurality of pulse trains, and the radio wave emission source of each pulse train is determined. As shown in FIG. 5, the pulse train is classified by using the pulse component characteristic classifier 11 and the pulse rising slope characteristic classifier 13 together, as shown in FIG.
The accuracy of pulse train classification can be further improved.

Embodiment 6 FIG. In the second and third embodiments, the pulse rising slope characteristic classifier 12 or the pulse falling slope characteristic classifier 13 is individually used, and each pulse is classified into a plurality of pulse trains, and the radio wave emission source of each pulse train is classified. However, as shown in FIG. 6, the pulse train classification is performed using the pulse rise slope characteristic classifier 11 and the pulse fall slope characteristic classifier in combination, thereby further improving the accuracy of the pulse train classification. Can be done.

Embodiment 7 Embodiments 1, 2, and 3
Then, the pulse component characteristic classifier 11 or the pulse rise / slope characteristic classifier 12 or the pulse fall / slope characteristic classifier 13 is individually used, each pulse is classified into a plurality of pulse trains, and the radio wave emission source of each of the pulse trains is classified. However, as shown in FIG. 7, the pulse train is classified by using the pulse component characteristic classifier 11, the pulse rising slope characteristic classifier 12, and the pulse falling slope characteristic classifier 13 in combination. In addition, the accuracy of the pulse train classification can be further improved.

Embodiment 8 FIG. FIG. 8 is a block diagram of a radio wave detecting apparatus according to Embodiment 8 of the present invention. Instead of the radio wave source database 9 shown in FIG. 1, the frequency range of a transmission signal from a radio wave source such as various radars and the like are shown. A radio wave source database 14 having radio wave source data in which pulse component characteristic data is added to a pulse width range is provided, and a radio wave stored in the radio wave source database 14 is used instead of the radio wave source identifier 8 in FIG. Source data,
The apparatus includes a radio-wave source identification unit 15 that identifies the radio-wave source by comparing the average frequency value and average pulse width value detected by the radio-wave source data detection processor 7 with the pulse component characteristic data. This radio wave detection device classifies a pulse train with a pulse component characteristic classifier 11 and calculates an average frequency and an average pulse width calculated by a radio wave source data detection processor 7;
Each radio wave source data (frequency range and pulse width range) of the radio wave source database 14 is compared with the radio wave source identifier 15.
To extract radio wave emission source name candidates that fall within the range. At this time, when there are a plurality of radio wave emission source name candidates, the dispersion diagram created by the pulse component characteristic classifier 11 and the radio wave emission source database 14 are stored for the pulses of each radio wave emission source. The dispersion map created from the pulse component characteristic data is superimposed and compared to identify the name of the radio wave emission source. First, an overlap rate of points of the dispersion diagram created by the pulse component characteristic classifier 11 and the points of the dispersion diagram created from the pulse component characteristic data stored in the radio wave emission source database 14 is calculated. Next, the ratio A of the number of pulses detected as pulses of the same radio wave emitting source as the number of pulses whose overlap ratio is equal to or greater than a predetermined ratio is calculated. The above processing is performed on all of the plurality of radio wave source name candidates, and the radio wave source name having the highest value of the ratio A is set as the name. The display processor 10 displays the detected radio wave emission source data and the identified radio wave emission source name on the screen.

As described above, according to the eighth embodiment, each pulse included in the pulse trains of a plurality of radio waves arriving from a plurality of radio wave emission sources is classified into a plurality of pulse trains based on the pulse component characteristics. The radio wave source of each pulse train is identified from the frequency and pulse width of the pulse belonging to each pulse train, and when there are a plurality of radio wave source name candidates, the radio wave source is created from the pulse component characteristic data of each pulse .
Since the source of the radio wave was identified using the scatter diagram ,
The identification accuracy of the name of the radio wave emission source can be further improved.

Embodiment 9 In the eighth embodiment, the radio wave emission source database 14 and the radio wave emission source identifier 15 are provided, and the radio wave emission source names are identified by comparing the pulse component characteristics. However, as shown in FIG. A radio wave source database 16 having radio wave source data obtained by adding pulse rising slope characteristic data to a frequency range and a pulse width range of a transmission signal from a radio wave source such as a radio wave source stored in the radio wave source database 16 The source data is compared with the average frequency value and average pulse width value detected by the radio wave source data detection processor 7 and the pulse falling slope characteristic data to identify the radio wave source identification unit 17. Alternatively, the name of the radio wave emission source may be identified by comparing the pulse rising slope characteristics. That is,
When there are a plurality of radio wave emission source name candidates extracted based on the frequency range and the pulse width range, the radio wave emission source is specified by the pulse rising slope characteristics as described below.
First, the number of pulses having the same type of pulse rising slope created by the pulse rising slope characteristic classifier 12 is calculated. Next, the ratio A of the number of pulses of the same type and the number of pulses detected as pulses of the same radio wave emission source is calculated. The above processing is performed on all of the plurality of radio wave source name candidates, and the radio wave source name having the highest value of the ratio A is set as the name. The display processor 10 displays the detected radio wave emission source data and the identified radio wave emission source name on the screen.

Embodiment 10 FIG. In the ninth embodiment,
The radio emission source database 16 and the radio emission source identifier 17 were provided, and the names of the radio emission sources were identified by comparing the pulse rising slope characteristics. As shown in FIG. Radio wave source database 1 having radio wave source data obtained by adding pulse falling slope characteristic data to the frequency range and pulse width range of the transmission signal of FIG.
8, the radio wave emission source data stored in the radio wave emission source database 18, the average frequency value and the average pulse width value detected by the radio wave emission source data detection processor 7, and the pulse falling slope characteristic data. Embodiment 9 is provided with a radio wave emission source identifier 19 for identifying a radio wave emission source name.
Similarly to the above, the name of the radio wave emission source can be identified by comparing the pulse falling slope characteristics.

Embodiment 11 FIG. In the eighth and ninth embodiments, the names of the radio wave emission sources are individually identified using the pulse component characteristics or the pulse rising slope characteristics of the radio wave emission sources. However, as shown in FIG. The radio wave source database 20 having the pulse component characteristic data and the pulse rising slope characteristic data of the transmission signal, the radio wave source data stored in the radio wave source database 20, and the radio wave source data detection processor 7 have detected the radio wave source data. A radio wave emission source identifier for identifying the name of the radio wave emission source by comparing the pulse component characteristic data with the pulse rise slope characteristic data, and using the pulse component characteristic data and the pulse rise slope characteristic data to identify the radio wave emission source name By identifying, identification with even higher accuracy can be performed.

Embodiment 12 FIG. Embodiments 8 and 10 above
In the above, the names of the radio wave emission sources were individually identified using the pulse component characteristics or the pulse falling slope characteristics of the radio wave emission sources. However, as shown in FIG. A radio wave emission source database 22 having data and pulse falling slope characteristic data,
The radio wave source name stored in the radio wave source database 22 is compared with the pulse component characteristic data and the pulse falling slope characteristic data detected by the radio wave source data detection processor 7 to identify the radio wave source name. By providing the radio wave emission source identifier 23 and identifying the name of the radio wave emission source using the pulse component characteristic data and the pulse falling slope characteristic data, it is possible to perform identification with higher accuracy.

Embodiment 13 FIG. Embodiments 9 and 10 above
In the above, the names of the radio wave emission sources were individually identified using the pulse rise characteristics or pulse fall characteristics of the radio wave emission sources. However, as shown in FIG. Radio source database 24 having pulse fall characteristic data
The radio wave emission source name stored in the radio wave emission source database 24 is compared with the pulse rising characteristic data and the pulse falling slope characteristic data detected by the radio wave emission source data detection processor 7 to determine the name of the radio wave emission source. An identification unit 25 for identifying the radio wave emission source is provided, and the name of the radio wave emission source is identified by using the pulse rise characteristic data and the pulse fall slope characteristic data, whereby the identification can be further improved.

Embodiment 14 FIG. Embodiment 8, 9,
In FIG. 10, the names of the radio wave emission sources were individually identified using the pulse component characteristics, the pulse rise characteristics, or the pulse fall characteristics of the radio wave emission sources. However, as shown in FIG. The radio wave emission source database 26 having the pulse component characteristic, the pulse rise characteristic data, and the pulse fall characteristic data, the radio wave emission source data stored in the radio wave emission source database 26, and the radio wave emission source data detection processor 7 A radio emission source identifier 27 for comparing the detected pulse rising characteristic data with the pulse falling inclination characteristic data to identify the name of the radio emission source, and using the pulse rising characteristic data and the pulse falling inclination characteristic data. By identifying the name of the radio wave emission source, identification with even higher accuracy can be performed.

In the above embodiments, after the pulses are classified by the frequency / pulse width classifier 6, the pulse component characteristic classifier 11, the pulse rise / slope characteristic classifier 12, and the pulse fall / slope characteristic classifier 13 are used. Any one or two or all of them are classified, and as the pulse train number, the classification number given by the frequency / pulse width classifier 6 and any one or two or all of the above classifiers 11, 12, 13 Although the number that matches the classification number added in was adopted,
The method of specifying the pulse train number is not limited to this. For example, in the case of the radio wave detection device having the configuration shown in the first and eighth embodiments, the pulse component characteristic classifier 11 generates a dispersion diagram for only the same pulses classified by the frequency / pulse width classifier 6. Create and superimpose, frequency and
The classification number of the pulse width classifier 6 may be corrected, and the dispersion result may be created and the classification result corrected by superposition may be output to the radio wave emission source data detection processor 7. Furthermore, when creating a dispersion diagram only for the same pulses classified by the frequency / pulse width classifier 6, the allowable width of the reference frequency when collating the frequency / pulse width by the frequency / pulse width classifier 6 is used. And the allowable width of the reference pulse width are set wider, the number of sets of scatter diagrams to be superimposed by the pulse component characteristic classifier 11 is increased, and classification accuracy is improved by eliminating classification omission. Is also good. In each of the above embodiments, the classification number collation operation and the pulse classification operation are performed by the classifier (the pulse component characteristic classifier 11 or the pulse rising slope characteristic classifier 12) output to the radio wave emission source data detection processor 7. Alternatively, a means for classifying each pulse into a plurality of pulse trains by comparing the classification number classified by each of the above classifiers in the preceding stage of the radio wave emission source data detection processor 7 which was performed in the pulse falling slope characteristic classifier 13). May be provided to perform the above-described classification number collation work and the pulse classification work.

[0040]

As described above, according to the first aspect of the present invention,
The described radio wave detection device classifies each pulse included in a pulse train of a plurality of radio waves arriving from a plurality of radio wave emission sources into a plurality of pulse trains by comparing the variance of the amplitude of each pulse and the difference between the amplitude values , Since the radio wave emission source of each pulse train is identified from the frequency and pulse width of the pulse belonging to each classified pulse train, the pulse can be classified with high accuracy, and the frequency and the Even when the pulse widths are close to each other or vary, the accuracy of identification of the name of the radio wave emission source can be improved.

According to a second aspect of the present invention, each pulse included in a plurality of pulse trains of radio waves arriving from a plurality of radio wave emitting sources is classified into a plurality of pulse trains according to pulse rising slope characteristics of each pulse. Since the radio wave emission source of each pulse train is identified from the frequency and pulse width of the pulse belonging to each pulse train, the classification of the pulses can be performed accurately, and the identification accuracy of the name of the radio wave emission source is improved. be able to.

According to a third aspect of the present invention, there is provided a radio wave detecting apparatus, wherein each pulse included in a plurality of pulse trains of radio waves arriving from a plurality of radio wave emitting sources is classified into a plurality of pulse trains according to pulse falling slope characteristics of each pulse. Since the radio wave emission source of each pulse train is identified based on the frequency and pulse width of the pulse belonging to each pulse train, the classification of the pulses can be performed accurately, and the identification accuracy of the name of the radio wave emission source is improved. Can be done.

According to a fourth aspect of the present invention, there is provided a radio wave detecting apparatus, wherein each pulse included in a pulse train of a plurality of radio waves arriving from a plurality of radio wave emitting sources is obtained by dispersing the amplitude of each pulse and the difference between the amplitude values and the pulse rising slope characteristic. By classifying the pulse into a plurality of pulse trains according to the frequency and pulse width of the pulses belonging to each of the classified pulse trains, the radio wave emission source of each of the pulse trains is identified. It is possible to further improve the identification accuracy of the launch source name.

According to a fifth aspect of the present invention, in the radio wave detecting apparatus, each pulse included in a pulse train of a plurality of radio waves arriving from a plurality of radio wave emitting sources is obtained by calculating the variance between the amplitude of each pulse and the difference between the amplitude values. Since the pulse is classified into a plurality of pulse trains according to the pulse falling slope characteristics and the frequency and pulse width of the pulse belonging to each of the classified pulse trains, the radio wave emission source of each of the pulse trains is identified. The accuracy is further improved, and the identification accuracy of the radio wave emission source name can be further improved.

According to a sixth aspect of the present invention, in the radio wave detecting apparatus, each pulse included in a pulse train of a plurality of radio waves arriving from a plurality of radio wave emitting sources is converted into a plurality of pulses by a pulse rising slope characteristic and a pulse falling slope characteristic of each pulse. Classified into pulse trains, and from the frequency and pulse width of the pulses belonging to each of the classified pulse trains, the radio wave emission source of each of the pulse trains was identified, so that the pulse classification accuracy was further improved, and the radio wave emission source name was changed. The identification accuracy can be further improved.

According to a seventh aspect of the present invention, in the radio wave detecting apparatus, each pulse included in a pulse train of a plurality of radio waves arriving from a plurality of radio wave emitting sources is converted into a variance between an amplitude of each pulse and a difference between the amplitude values. Since the pulse rising slope characteristics and the pulse falling slope characteristics are classified into a plurality of pulse trains, and from the frequency and pulse width of the pulses belonging to the classified pulse trains, the radio wave emission source of each of the pulse trains is identified. The classification accuracy of the pulse is further improved, and the identification accuracy of the name of the radio wave emission source can be further improved.

The radio wave detecting device according to the present invention is characterized in that each pulse included in a pulse train of a plurality of radio waves arriving from a plurality of radio wave emitting sources is obtained by calculating the difference between the amplitude of each pulse and the difference between the amplitude values.
Dispersed by classifying into a plurality of pulse trains, since the radio wave source of the classified dispersed whether <br/> et al above pulse sequence with the difference between the amplitude and the amplitude value of the pulse belonging to each pulse train was to identify, each Even when there are a plurality of radio wave source name candidates identified from the pulse frequency and pulse width, the radio wave source name can be identified by comparing the pulse component characteristics of each pulse, and the radio wave source name can be specified. The identification accuracy can be further improved.

According to a ninth aspect of the present invention, there is provided a radio wave detecting apparatus wherein each pulse included in a plurality of pulse trains of radio waves arriving from a plurality of radio wave emitting sources is classified into a plurality of pulse trains based on a pulse rising slope characteristic of each pulse. Since the radio wave emission source of each pulse train is identified from the pulse rising slope characteristics of the pulses belonging to each pulse train, even when there are a plurality of radio wave emission source name candidates identified from the frequency and pulse width of each pulse, By comparing the pulse rising slope characteristics of the respective pulses, the name of the radio wave emission source can be specified, and the identification accuracy of the name of the radio wave emission source can be further improved.

According to a tenth aspect of the present invention, in the radio wave detecting apparatus, each pulse included in a plurality of pulse trains of a plurality of radio waves arriving from a plurality of radio wave emitting sources is classified into a plurality of pulse trains according to pulse falling slope characteristics of each pulse. Since the radio wave emission source of each pulse train is identified from the pulse falling slope characteristics of the pulses belonging to each of the pulse trains, when there are a plurality of radio wave emission source name candidates identified from the frequency and pulse width of each pulse, Also, by comparing the pulse falling slope characteristics of each pulse, the name of the radio wave emission source can be specified, and the identification accuracy of the name of the radio wave emission source can be further improved.

According to the eleventh aspect of the present invention, in the radio wave detecting apparatus, each pulse included in a pulse train of a plurality of radio waves arriving from a plurality of radio wave emitting sources is converted into a variance between an amplitude of each pulse and a difference between the amplitude values. Classified into a plurality of pulse trains based on the pulse rising slope characteristics, and the amplitude and amplitude of the pulse belonging to each classified pulse train
Since the radio wave emission source of each pulse train is identified based on the variance with the amplitude value difference and the pulse rising slope characteristics, the identification accuracy of the radio emission source is further improved, and the identification accuracy of the radio emission source name is further improved. Can be done.

According to a twelfth aspect of the present invention, in the radio wave detecting apparatus, each pulse included in a pulse train of a plurality of radio waves arriving from a plurality of radio wave emitting sources is converted into a variance between an amplitude of each pulse and a difference between the amplitude values. Classified into a plurality of pulse trains according to the pulse falling slope characteristics, and the amplitude and amplitude of the pulses belonging to each classified pulse train
Since the radio wave emission source of each pulse train is identified from the variance of the amplitude value difference and the pulse falling slope characteristics, the identification accuracy of the radio emission source is further improved, and the identification accuracy of the radio emission source name is further improved. Can be improved.

According to a thirteenth aspect of the present invention, each of the pulses included in the pulse train of a plurality of radio waves arriving from a plurality of radio wave emitting sources is converted into a plurality of pulses by a pulse rising slope characteristic and a pulse falling slope characteristic of each pulse. Since the radio wave emission source of each pulse train was identified from the pulse rising slope characteristics and the pulse falling slope characteristics of the pulses belonging to each of the classified pulse trains,
The identification accuracy of the radio wave emission source can be further improved, and the identification accuracy of the radio wave emission source name can be further improved.

In the radio wave detecting apparatus according to the present invention, each pulse included in a pulse train of a plurality of radio waves arriving from a plurality of radio wave emitting sources is converted into a variance between an amplitude of each pulse and a difference between the amplitude values. The pulse is classified into a plurality of pulse trains according to the pulse rising slope characteristics and the pulse falling slope characteristics, and the variance of the amplitude and the difference between the amplitude values of the pulses belonging to each classified pulse train, and the pulse rising slope characteristics and the pulse falling slope characteristics are used. Since the radio wave emission source of each pulse train is identified, the identification accuracy of the radio wave emission source can be further improved, and the identification accuracy of the radio wave emission source name can be further improved.

[Brief description of the drawings]

FIG. 1 is a block configuration diagram of a radio wave detection device according to Embodiment 1 of the present invention.

FIG. 2 is a configuration diagram of a radio wave detection device according to a second embodiment.

FIG. 3 is a configuration diagram of a radio wave detection device according to a third embodiment.

FIG. 4 is a configuration diagram of a radio wave detection device according to a fourth embodiment.

FIG. 5 is a configuration diagram of a radio wave detection device according to a fifth embodiment.

FIG. 6 is a configuration diagram of a radio wave detection device according to a sixth embodiment.

FIG. 7 is a configuration diagram of a radio wave detection device according to a seventh embodiment.

FIG. 8 is a configuration diagram of a radio wave detection device according to an eighth embodiment.

FIG. 9 is a configuration diagram of a radio wave detection device according to a ninth embodiment.

FIG. 10 is a configuration diagram of a radio wave detection device according to a tenth embodiment.

FIG. 11 is a configuration diagram of a radio wave detection device according to an eleventh embodiment.

FIG. 12 is a configuration diagram of a radio wave detection device according to a twelfth embodiment.

FIG. 13 is a configuration diagram of a radio wave detection device according to a thirteenth embodiment.

FIG. 14 is a configuration diagram of a radio wave detection device according to a fourteenth embodiment.

FIG. 15 is a schematic diagram showing digital data of one pulse.

FIG. 16 is an enlarged schematic diagram showing digital data of one pulse.

FIG. 17 is a dispersion diagram illustrating pulse component characteristics of digital data.

FIG. 18 is a diagram illustrating a configuration of extracted digital data.

FIG. 19 is a diagram for explaining pulse data.

FIG. 20 is a diagram for explaining pulse rising slope characteristics.

FIG. 21 is a diagram showing a configuration of a radio wave emission source database.

FIG. 22 is a diagram for explaining a method of assigning a pulse classification number.

FIG. 23 is a configuration diagram of a conventional radio wave detection device.

[Explanation of symbols]

1 receiving antenna, 2 receiver, 3 A / D converter, 4
Digital data extractor, 5 signal detector, 6 frequency / pulse width classifier, 7 radio wave source data detection processor,
8 radio wave source identification device, 9 radio wave source database,
10 display processor, 11 pulse component characteristic classifier, 12
Pulse rise slope characteristic classifier, 13 pulse fall slope characteristic classifier, 14 radio wave emission source database, 15 radio wave emission source identifier, 16 radio emission source database, 17 radio emission source identifier, 18 radio emission source database, 19 radio waves Source identifier, 20 radio source database, 21 radio source identifier, 22 radio source database, 23 radio source identifier, 24
Radio source database, 25 Radio source identifier, 2
6 Radio Wave Source Database, 27 Radio Wave Source Identifier

Continuation of front page (56) References JP-A-6-160532 (JP, A) JP-A-9-281215 (JP, A) JP-A-9-197039 (JP, A) JP-A-4-19587 (JP) JP-A-4-276579 (JP, A) JP-A-4-109187 (JP, A) JP-A-5-107339 (JP, A) JP-A-5-164846 (JP, A) (58) Field surveyed (Int. Cl. ⁷ , DB name) G01S ⁷ /00-7/42 G01S 13/00-13/95

Claims (14)

(57) [Claims] 1. A difference between an amplitude of each pulse included in a pulse train of a plurality of radio waves arriving from a plurality of radio wave emission sources and an amplitude value.
A pulse component characteristic classifier that classifies each of the pulses into a plurality of pulse trains by comparing the variances of the pulse trains with each other is provided.From the frequency and pulse width of each pulse belonging to each pulse train classified by the pulse component characteristic classifier, A radio wave detection device for identifying the radio wave emission source of each pulse train. 2. A pulse rise of each pulse included in a pulse train of a plurality of radio waves coming from a plurality of radio wave emission sources.
The sum of the amplitude differences of at least three points of the part
The pulse rise slope characteristics of each pulse are the same
Determine whether or not , provided a pulse rise slope characteristic classifier that classifies each of the pulses into a plurality of pulse trains, from the frequency and pulse width of the pulses belonging to each pulse train classified by the pulse rise slope characteristics classifier A radio wave detection device for identifying the radio wave emission source of each pulse train. 3. A falling edge of each pulse included in a pulse train of a plurality of radio waves arriving from a plurality of radio wave emission sources.
The sum of the amplitude differences of at least three points of the part
Pulse fall slope characteristics of each pulse are the same
A pulse falling slope characteristic classifier that classifies each of the pulses into a plurality of pulse trains, and determines the frequency and pulse width of the pulses belonging to each pulse train classified by the pulse falling slope characteristic classifier. A radio wave detection device characterized in that the radio wave emission source of each pulse train is identified from the following. 4. The difference between the amplitude and the amplitude value of each pulse included in a pulse train of a plurality of radio waves arriving from a plurality of radio wave emission sources.
And a pulse component characteristic classifier that classifies each of the pulses into a plurality of pulse trains by comparing the variances of the pulses with each other , and an amplitude difference between at least three points of a pulse rising portion of each pulse.
A pulse rise slope classifier that classifies each of the pulses into a plurality of pulse trains, and determines whether the pulse rise slope characteristics of each pulse are the same. From the frequency and pulse width of the pulse belonging to each pulse train classified by the classifier and the pulse rise slope characteristic classifier,
A radio wave detection device characterized in that a radio wave emission source of each pulse train is identified. 5. A difference between an amplitude of each pulse included in a pulse train of a plurality of radio waves arriving from a plurality of radio wave emission sources and an amplitude value.
And a pulse component characteristic classifier that classifies each of the pulses into a plurality of pulse trains by comparing the variances of the pulses with each other , and an amplitude difference between at least three points at the pulse falling portion of each pulse.
A pulse falling slope characteristic classifier that classifies each of the pulses into a plurality of pulse trains, and determines whether the pulse falling slope characteristics of the respective pulses are the same. From the frequency and pulse width of the pulse belonging to each pulse train classified by the component characteristic classifier and the pulse falling slope characteristic classifier,
A radio wave detection device characterized in that a radio wave emission source of each pulse train is identified. 6. A pulse rise of each pulse included in a pulse train of a plurality of radio waves coming from a plurality of radio wave emission sources.
The sum of the amplitude differences of at least three points of the part
The pulse rise slope characteristics of each pulse are the same
Determine whether or not, a pulse rising slope characteristic classifier that classifies each of the pulses into a plurality of pulse trains,
At least 3 points at the falling edge of each pulse
A pulse falling slope characteristic classifier that classifies each pulse into a plurality of pulse trains by determining whether the pulse falling slope characteristics of the respective pulses are the same. From the frequency and pulse width of the pulses belonging to each pulse train classified by the pulse rising slope characteristic classifier and the pulse falling slope characteristic classifier, the radio wave emission source of each pulse train is characterized. Radio wave detection device. 7. A difference between an amplitude and an amplitude value of each pulse included in a pulse train of a plurality of radio waves arriving from a plurality of radio wave emission sources.
And a pulse component characteristic classifier that classifies each of the pulses into a plurality of pulse trains by comparing the variances of the pulses with each other , and an amplitude difference between at least three points of a pulse rising portion of each pulse.
Seeking total, to determine whether the pulse rising slope characteristics of each pulse is the same, the pulse rising slope characteristic classifier for classifying each of the respective pulses to the plurality of pulse trains, each pulse, pulse falling Falling part
Calculate the sum of the amplitude differences of at least three points of
Whether the pulse falling slope characteristics of these pulses are the same
Determine whether or not, a pulse falling slope characteristic classifier that classifies each of the pulses into a plurality of pulse trains is provided, and the pulse component characteristic classifier, the pulse rising slope characteristic classifier, and the pulse falling slope characteristic classifier are provided. A radio wave detection apparatus characterized in that the radio wave emission source of each pulse train is identified from the frequency and pulse width of the pulses belonging to each pulse train classified by the following. 8. The difference between the amplitude and the amplitude value of each pulse included in a pulse train of a plurality of radio waves arriving from a plurality of radio wave emission sources.
A pulse component characteristic classifier for classifying each of the pulses into a plurality of pulse trains by comparing the variance with the pulse train, and from the pulse component characteristics of the pulses belonging to each pulse train classified by the pulse component characteristic classifier, A radio wave detection device characterized in that a radio wave emission source of a pulse train is identified. 9. A pulse rise of each pulse included in a pulse train of a plurality of radio waves coming from a plurality of radio wave emission sources.
The sum of the amplitude differences of at least three points of the part
The pulse rise slope characteristics of each pulse are the same
Determine whether or not , provided a pulse rise slope characteristic classifier that classifies each of the pulses into a plurality of pulse trains, from the pulse rise slope characteristics of the pulses belonging to each pulse train classified by the pulse rise slope characteristics classifier, A radio wave detection device characterized in that a radio wave emission source of each pulse train is identified. 10. A pulse falling edge of each pulse included in a pulse train of a plurality of radio waves arriving from a plurality of radio wave emission sources.
The sum of the amplitude differences of at least three points
The pulse falling slope characteristics of each pulse are the same.
A pulse falling slope classifier for classifying each of the pulses into a plurality of pulse trains, and determining whether the pulse falls in each pulse train classified by the pulse falling slope classifier. A radio wave detection device characterized in that the radio wave emission source of each of the pulse trains is identified from the inclination characteristics. 11. A difference between an amplitude and an amplitude value of each pulse included in a pulse train of a plurality of radio waves arriving from a plurality of radio wave emission sources.
A pulse component characteristic classifier that classifies each of the pulses into a plurality of pulse trains by comparing the variance with the pulse, and an amplitude difference between at least three points of the pulse rising portion of each pulse
A pulse rise slope classifier that classifies each of the pulses into a plurality of pulse trains, and determines whether the pulse rise slope characteristics of each pulse are the same. The radio wave source characterized in that the radio wave emission source of each pulse train is identified from the pulse component characteristics and the pulse rise slope characteristics of the pulses belonging to each pulse train classified by the classifier and the pulse rise slope characteristics classifier. Detector. 12. A difference between an amplitude and an amplitude value of each pulse included in a pulse train of a plurality of radio waves coming from a plurality of radio wave emission sources.
A pulse component characteristic classifier that classifies each of the pulses into a plurality of pulse trains by comparing the variance with the pulse, and an amplitude difference between at least three points at the pulse falling portion of each pulse
A pulse falling slope characteristic classifier that classifies each of the pulses into a plurality of pulse trains, and determines whether the pulse falling slope characteristics of the respective pulses are the same. From the pulse component characteristics and the pulse falling slope characteristics of the pulses belonging to each pulse train classified by the component characteristic classifier and the pulse falling slope classifier, the radio wave emission source of each pulse train is identified. Characteristic radio wave detection device. 13. A pulse rising of each pulse included in a pulse train of a plurality of radio waves arriving from a plurality of radio wave emission sources.
The sum of the amplitude differences of at least three points
The pulse rise slope characteristics of each pulse are the same.
And a pulse rising slope classifier for classifying each of the pulses into a plurality of pulse trains, and at least three points of a pulse falling portion of each pulse.
By calculating the sum of the above amplitude differences, it is determined whether the pulse falling slope characteristics of each pulse are the same,
A pulse falling slope characteristic classifier that classifies each of the pulses into a plurality of pulse trains is provided, and a pulse of a pulse belonging to each pulse train classified by the pulse rising slope characteristic classifier and the pulse falling slope characteristic classifier is provided. A radio wave detecting apparatus characterized in that the radio wave emission source of each pulse train is identified from the rising slope characteristics and the pulse falling slope characteristics. 14. A difference between an amplitude and an amplitude value of each pulse included in a pulse train of a plurality of radio waves coming from a plurality of radio wave emission sources.
Min and the pulse component characteristic classifier dispersed by comparing the classifying each of the respective pulses to the plurality of pulse trains, each pulse amplitude difference at least three points of pulse falling rising portion
Seeking total, to determine whether the pulse rising slope characteristics of each pulse is the same, the pulse rising slope characteristic classifier for classifying each of the respective pulses to the plurality of pulse trains, each pulse, pulse falling Falling part
Calculate the sum of the amplitude differences of at least three points of
Whether the pulse falling slope characteristics of these pulses are the same
Determine whether or not, a pulse falling slope characteristic classifier that classifies each of the pulses into a plurality of pulse trains is provided, and the pulse component characteristic classifier, the pulse rising slope characteristic classifier, and the pulse falling slope characteristic classifier are provided. A radio wave detecting apparatus characterized in that a radio wave emission source of each pulse train is identified from a pulse component characteristic, a pulse rising slope characteristic, and a pulse falling slope characteristic of a pulse belonging to each pulse train classified according to.