KR100996430B1 - Frequency hopping signal collection device and method using azimuth information - Google Patents

Abstract

Disclosed are a frequency hopping signal acquisition device and method using azimuth information. A wideband signal receiver for receiving a wideband frequency hopping signal using a tuning frequency provided from a signal collection control unit, and an azimuth angle of the received wideband frequency hopping signal; A wideband azimuth estimator for selecting an azimuth within and mapping the selected azimuth to a narrowband channel of a corresponding tuning frequency, and a narrowband signal for converting the received wideband frequency hopping signal into a narrowband signal for each of the mapped narrowband channels And a frequency hopping signal collection device using azimuth information including a conversion unit and a signal collection unit storing the converted narrowband signal. When using the apparatus and method for collecting the frequency hopping signal using the azimuth information according to the present invention as described above, only the signal of the desired frequency hopping source is extracted from the unknown hopping signals by using the broadband direction of arrival information. By storing, there is an effect of reducing the storage space of the received signal and increasing the efficiency of signal processing. Signal processing time is also reduced.

Azimuth information, estimation, jump signal, acquisition, wideband, narrowband

Description

Frequency hopping signal acquisition device and method using azimuth information {APPARATUS AND METHOD FOR COLLECTING FREQUENCY HOPPING SIGNAL USING DIRECTION OF ARRIVAL}

The present invention relates to a frequency hopping signal acquisition device and method. More specifically, the present invention relates to a frequency hopping signal collection device and method using azimuth information.

The frequency hopping modulation technique, which is one of the wideband frequency communication methods, has a high transmission bandwidth compared to the information utilization bandwidth, and thus is increasingly used as a safe communication technique due to low low probability of intercept (LPI). This frequency hopping modulation technique is recently utilized in wireless LAN (WLAN), Bluetooth (Bluetooth) and WiMAX as a commercial communication. Because these signal sources transmit frequencies randomly over a wide band, they store the entire hopping band when signal collection is needed.

In this case, when receiving by using an array antenna, it is helpful to selectively receive signals of specific signal sources transmitted in a specific direction from multiple signals and to remove other blind signals.

However, in order to obtain a signal by a specific signal source from the broadband frequency hopping signals, all the hopping signal bands are stored once. If analysis is required, the entire signal band is loaded into the main memory device and subsequent signal processing is performed to re-extract the signal of the desired frequency hopping source.

Therefore, a large storage space for storing the entire signal band is essential, and there is a problem in that a high capacity memory and a high performance arithmetic processing device are required for signal processing. In addition, there is a problem that the time required for signal processing also becomes long.

An object of the present invention for solving the above problems is to provide a frequency hopping signal collection apparatus using azimuth information.

Another object of the present invention for solving the above problems is to provide a frequency hopping signal collection method using azimuth information.

One aspect of the present invention for achieving the above object is, a wideband signal receiver for receiving a wideband frequency hopping signal using the tuning frequency provided from the signal collection control unit, and calculating the azimuth angle of the received wideband frequency hopping signal, and calculating A wide azimuth angle estimator for selecting an azimuth within a range of azimuth calculation provided from the signal collection control unit and mapping the selected azimuth to a narrow band channel of a corresponding tuning frequency; Provided is a frequency hopping signal collection apparatus using azimuth information including a narrowband signal converter for converting narrowband signals to narrowband signals for each narrowband channel and a signal collector for storing the converted narrowband signals. The wideband azimuth estimator may be configured to select the azimuth angles from a signal having a Fourier coefficient calculated by frequency converting the received wideband frequency hopping signal from the signal collection controller. The wideband azimuth estimator may be configured to use azimuth information, which is characterized by calculating azimuth angles by applying a wideband FFT DOA estimation technique. Meanwhile, the frequency hopping signal collection device may further include an array antenna for receiving broadband frequency hopping signals incident in a predetermined direction.

Another aspect of the present invention for achieving the above object is a wideband signal receiving unit for receiving a wideband frequency hopping signal using the tuning frequency provided from the signal collection control unit, and calculates the azimuth angle of the received wideband frequency hopping signal, A wide-band azimuth estimator for selecting an azimuth in the azimuth calculation range provided from the signal collection controller from the calculated azimuth and mapping the selected azimuth to a narrow-band channel of a corresponding tuning frequency, and mapping the received wide-band hopping signal A narrowband signal converter for converting narrowband signals into narrowband signals for each narrowband channel, and a hopping signal combination collector for storing the converted narrowband signals into a single signal by using the azimuth angle selected by the wideband azimuth estimator; Frequency hopping signal acquisition cabinet using azimuth information included To provide In this case, the hopping signal combination collecting unit may be configured to use the azimuth information characterized in that the narrowband signal converted by the narrowband signal converter combines the time delay generated for each narrowband channel into a single signal. Can be. The hopping signal combination collecting unit may be configured to combine into a single signal using a maximum ratio combiner (MRC) or equal gain combiner (EGC) signal synthesis technique. The wideband azimuth estimator may be configured to select the azimuth from a signal in which a Fourier coefficient calculated by frequency converting the received wideband frequency hopping signal is greater than or equal to a predetermined threshold provided from the signal collection controller. The wideband azimuth estimator may be configured to calculate the azimuth by applying a wideband FFT DOA estimation technique. In addition, the frequency hopping signal collection device may be configured to further include an array antenna (array antenna) for receiving a broadband frequency hopping signal incident in a predetermined direction.

One aspect of the present invention for achieving the above another object is to receive a wideband frequency hopping signal using the received tuning frequency, calculating an azimuth angle of the received wideband frequency hopping signal, and the calculated azimuth angle Selecting an azimuth angle within an azimuth calculation range provided from the signal collection controller, mapping the selected azimuth angles to a narrowband channel of a corresponding tuning frequency, and narrowing the received wideband frequency hopping signals for each of the mapped narrowband channels Converting to a band signal and storing the converted narrowband signals. Here, selecting the azimuth angle within the azimuth calculation range provided from the signal collection control unit from the calculated azimuth angle, and mapping the selected azimuth angles to a narrowband channel of the corresponding tuning frequency, the received wideband frequency hopping signals The azimuth angles may be selected from a signal having a Fourier coefficient calculated by the conversion being equal to or greater than a predetermined threshold provided from the signal collection controller. The calculating of the azimuth angles of the received wideband frequency hopping signal may be configured to calculate the azimuth angle by applying a wideband FFT DOA Estimation Technique.

Another aspect of the present invention for achieving the other object, the step of receiving a wideband frequency hopping signal using the received tuning frequency, calculating the azimuth angle of the received wideband frequency hopping signal, and the calculated Selecting an azimuth angle within an azimuth calculation range provided from the signal collection controller from among the azimuth angles, mapping a predetermined azimuth angle to a narrowband channel of a corresponding tuning frequency, and mapping the received wideband frequency hopping signal to each of the mapped narrowband channels A method of collecting a frequency hopping signal using azimuth information, comprising: converting a narrowband signal into a single signal by using the azimuth angle selected by the wideband azimuth estimator; to provide. Here, using the azimuth angle selected by the wideband azimuth estimator, combining and storing the converted narrowband signal into a single signal may include time delay generated for each narrowband channel. And store in combination in a single signal. In this case, using the azimuth angle selected by the wideband azimuth estimator, combining and storing the converted narrowband signal into a single signal may use a maximum ratio combiner (MRC) or equal gain combiner (EGC) signal synthesis scheme. Can be configured to combine into a single signal. And selecting an azimuth angle within an azimuth calculation range provided from the signal collection control unit from the calculated azimuth angles, and mapping the selected azimuth angles to a narrowband channel of a corresponding tuning frequency by frequency converting the received wideband frequency hopping signal. In this case, the azimuth angle may be selected from signals whose calculated Fourier coefficients are equal to or greater than a predetermined threshold. The calculating of the azimuth angle of the received wideband frequency hopping signal may be configured to calculate the azimuth angle for each narrowband channel by applying a wideband FFT DOA Estimation Technique.

When using the apparatus and method for searching for and storing an unknown signal in the signal acquisition device according to the present invention as described above, only the signal of the desired frequency hopping source among the unknown hopping signals is extracted and stored using broadband azimuth information. By doing so, it is possible to reduce the storage space of the received signal and to increase the efficiency of signal processing. Signal processing time is also reduced.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all changes, equivalents, and substitutes included in the spirit and scope of the present invention. Like reference numerals are used for like elements in describing each drawing.

Terms such as first, second, A, and B may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component. And / or < / RTI > includes any combination of a plurality of related listed items or any of a plurality of related listed items.

When a component is referred to as being "connected" or "connected" to another component, it may be directly connected to or connected to that other component, but it may be understood that other components may be present in between. Should be. On the other hand, when a component is said to be "directly connected" or "directly connected" to another component, it should be understood that there is no other component in between.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "having" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It should be understood that it does not preclude the presence or possibility of additions or numbers, steps, actions, components, parts or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art, and are not construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

In the frequency hopping signal collecting device and method using the azimuth information according to the present invention, in the frequency hopping network using the frequency hopping modulation technique, the received unknown hopping signals are separated and processed in real time by individual signal source units using broadband azimuth information. As an apparatus and method for performing the same, only narrowband signals in which signals exist in a wideband signal bandwidth are separated and stored, thereby increasing efficiency in terms of storage space and signal processing.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. 1 is a block diagram of an apparatus for collecting frequency hopping signals using azimuth information according to an embodiment of the present invention.

First, referring to FIG. 1, the frequency hopping signal collection device 100 includes a wideband signal receiver 110, a wideband azimuth estimator 120, a narrowband signal converter 130, a signal collector 140, and a signal collector. It may be configured to include a controller 150.

The wideband signal receiver 110 includes a wideband tuner 111 and a wideband digitizer 112 for block downconversion by wideband tuning of the RF signal received from the wideband direction detection array antenna. . Here, when the wideband direction detection array antenna has a circular array structure, reception and direction detection of signals incident from all directions may be possible, and M antennas may be arranged according to a specific rule.

Accordingly, the broadband tuner 111 and the wideband digitizer 112 are also composed of M pieces respectively. The wideband digitized digital wideband intermediate frequency (IF) data is input to the wideband azimuth estimator 120 and the narrowband signal converter 300.

The wideband azimuth estimator 120 estimates the azimuth using the azimuth information provided from the signal collection control unit 150 from the wideband signal input from the wideband signal receiver 110. Detailed description thereof will be described later with reference to FIG. 2.

The narrowband signal converter 130 extracts only the narrowband IF signal of the desired signal source from the wideband delay memory module 131 for delaying the input digital wideband IF signal for a predetermined time and the digital wideband IF signal. The conversion module 132 is included. Here, the narrowband conversion module 132 receives the tuning frequency information for the desired signal source from the wideband azimuth estimation unit 120. In this case, since the tuning frequency information receives only tuning frequency information for the azimuth angle estimated by the broadband azimuth estimator 120 as a signal of a desired hopping frequency signal source, predetermined N tuning frequencies, not M, may be provided. Where M> N and at most N = M-1.

The narrowband signal converter 300 converts digital wideband IF signals into digital narrowband IF signals using tuning frequencies to track a signal of a frequency hopping signal source. Then, the multiple narrowband IF signals of the signal sources to be collected are input to the signal collector 140 and stored, respectively.

The signal collection controller 150 provides various control information related to the frequency hopping signal source to be tracked to the wideband azimuth estimator 120 and the wideband signal receiver 110, and receives the confirmation result. The signal collection control unit 150 provides the broadband signal receiver 110 with tuning frequency information necessary for setting a reception band, and provides the broadband azimuth estimation unit 120 with threshold setting, spatial filter setting, and fixed signal frequency information. In addition, the signal collecting unit 140 provides information on the start and stop of the recording of the digital recording module 141.

2 is a block diagram of a broadband azimuth estimator 120 according to an embodiment of the present invention.

Referring to FIG. 2, the wideband azimuth estimator 120 includes a wideband Fourier transform module 121, a wideband azimuth estimation module 122, a spatial tracking filtering module 123, and an azimuth to frequency mapping module 124. Can be. Hereinafter, each structure is demonstrated.

The wideband Fourier transform module 121 converts the wideband digitized digital wideband IF signal from the time domain to the frequency domain. The wideband Fourier transform module 121 receives control information (threshold setting information) from the signal acquisition control unit 150 and receives only four channels whose Fourier coefficients are greater than or equal to a threshold value among the complex points converted into the frequency domain. May be configured to deliver to the broadband azimuth estimation module 122.

The wideband azimuth estimation module 122 estimates the azimuth for each narrowband channel by applying a wideband FFT DOA Estimation Technique to the digital wideband IF signal converted into the frequency domain.

Next, the spatial tracking filtering module 123 provides the azimuth detection range (spatial filter setting information) of the frequency hopping signal source to be collected from the signal collection control unit 150 and the elimination frequency information (fixed signal frequency information) that is not required to be collected. Receive and perform spatial filtering.

Meanwhile, the azimuth-to-frequency mapping module 124 selects the azimuth angle closest to the azimuth angle of the hopping frequency signal source to be collected among the effective azimuth angles, and selects corresponding tuning frequencies.

3 is a conceptual diagram of the operation of the wideband azimuth estimator 120 according to an embodiment of the present invention.

As shown in FIG. 3, the wideband Fourier transform module 121 performs an N point FFT (or DFT) on the input digital wideband IF signals in consideration of frequency resolution (where N is the number of points for Fourier transform). . The wideband azimuth estimation module 122 estimates the azimuth for each channel frequency by applying a wideband Fourier transform module 121 and a wideband FFT direction angle estimation method in consideration of array geometry.

4 is a block diagram of a narrowband conversion module 132 according to an embodiment of the present invention.

Referring to FIG. 4, the narrowband conversion module 132 may include a mixer 133 and 134, a numerically controlled oscillator (NCO), and a digital filter 136. Hereinafter, each structure is demonstrated.

First, the tuning frequency information provided by the wideband azimuth estimator 120 is input to the mixers 133 and 134. The tuning frequency provided by the wideband azimuth estimator 120 is provided to the NCO 135 and provided to a local oscillator (LO) input terminal of the mixers 133 and 134.

Next, the digital wideband IF signal and the signal of the NCO 135 output from the wideband delay memory module 310 are converted into an in-phase (I) channel signal and a quadrature-phase (Q) channel signal in the mixers 133 and 134. .

Next, the digital filter 136 extracts only the portion where the signal exists in units of the hopping frequency signal source from the I channel signal and the Q channel signal, and outputs a digital narrowband IF signal.

5 is a block diagram of the signal collection unit 140 according to an embodiment of the present invention. Referring to FIG. 5, the signal collector 140 may include a digital recording module 141.

The digital recording module 141 stores the digital narrowband IF signals converted for each hopping frequency signal source to be collected according to the control information on recording start and stop of the signal collection control unit 150 and returns the result. Thus, the entire digital signal does not need to be stored in the digital recording module 141, so that the storage space is reduced.

6 is a block diagram of a frequency hopping signal acquisition device 200 using an azimuth angle according to another embodiment of the present invention. The frequency hopping signal collection device 200 is for collecting the frequency hopping signal when a single signal source uses multiple channels. This is to receive only a signal of a single signal source with high quality as needed, and applies when the single signal source uses all available channels.

First, referring to FIG. 6, the frequency hopping signal collection device 200 includes a wideband signal receiver 210, a wideband azimuth estimator 220, a narrowband signal converter 230, a hopping signal combination collector 240, It may be configured to include a signal collection control unit 250. Hereinafter, each structure is demonstrated.

The wideband signal receiver 210 is the same as the wideband signal receiver 110 of FIG. 1.

The wideband azimuth estimator 220 calculates a tuning frequency for a single signal source selected by the signal collection control unit 250 and provides it to the narrowband signal converter 230.

The narrowband signal conversion unit 230 converts the wideband digital IF signal into a narrowband digital IF signal and provides it to the hopping signal combination collection unit 240.

The hopping signal combination collecting unit 240 collects the digital narrowband IF signals by coherently combining them into a single narrowband signal using the azimuth information provided by the wideband azimuth estimator 220. In this case, a signal synthesis technique such as a maximum ratio combiner (MRC) or an equal gain combiner (EGC) may be used.

7 is a block diagram of the hopping signal combination acquisition unit 240 according to an embodiment of the present invention.

Referring to FIG. 7, the hopping signal combination collecting unit 240 may include a multi-channel narrowband combination module 241 and a digital recording module 242. Hereinafter, each structure is demonstrated.

The multichannel narrowband combining module 241 coherently combines the signals of a single signal source received over multiple channels. Signals from a single signal source are received through M multiple channels from M array antennas, so they are combined. Here, since the digital narrowband IF signals through the M channels have different time delays, they must be matched to be combined into a single coherent signal. As a result, ASNR (Array SNR) can be improved. In general, the ASNR effect is increased in proportion to the number of channels to be combined. The synthesis technique includes the aforementioned maximum ratio combiner (MRC) or equal gain combiner (EGC).

The digital recording module 242 stores the digital narrowband IF signal of the previously combined single signal source according to the control information (recording start and stop command) of the signal collection control unit 250, and determines whether the signal is completed. Provided at 250.

8 is a flowchart illustrating a frequency hopping signal collection method using an azimuth angle according to an embodiment of the present invention. Each step is described below.

First, the wideband signal receiving unit 110 receives the wideband frequency hopping signal through the array antenna, and receives the wideband frequency hopping signal of the tuning frequency provided from the signal collection control unit 150 (S100).

Next, the wideband azimuth estimator 120 calculates an azimuth from the received wideband frequency hopping signal (S101). At this time, a wideband FFT direction angle estimation technique may be applied.

Then, the wideband azimuth estimator 120 selects an azimuth of signal sources to be collected from among the calculated azimuths. (S102) Here, the signal collection control unit 150 determines the azimuth of the signal sources. Azimuth or azimuth calculation ranges are provided. And azimuth angle of the frequency hopping signal that is closest to or within the azimuth calculation range. And it is mapped to each narrowband channel corresponding to the corresponding tuning frequency of the selected azimuth angle. Meanwhile, the wide-band azimuth estimator 120 may be configured to select the azimuth from a signal having a Fourier coefficient calculated by frequency-converting the received wide-band hopping signal more than a predetermined threshold provided from the signal collection control unit 140. .

Meanwhile, the narrowband signal converter 130 converts the received wideband frequency hopping signals into narrowband signals for each of the mapped narrowband channels for each signal source (S103).

The signal collector 140 stores the converted narrowband signals. (S104) Here, the signal collection controller 150 may be controlled such as a storage time.

9 is a flowchart illustrating a method for collecting a frequency hopping signal using an azimuth according to another embodiment of the present invention. Each step is described below.

First, the wideband signal receiving unit 210 receives the wideband frequency hopping signal through the array antenna, and receives the wideband frequency hopping signal of the tuning frequency provided from the signal collection control unit 250 (S200).

Next, the wideband azimuth estimator 220 calculates an azimuth from the received wideband frequency hopping signal (S201). At this time, a wideband FFT direction angle estimation technique may be applied.

The wideband azimuth estimator 220 selects an azimuth of one signal source to be collected from the calculated azimuths. (S202) Here, the azimuth of the signal source is acquired from the signal collection control unit 250. Or azimuth calculation range. And azimuth angle of the frequency hopping signal that is closest to or within the azimuth calculation range. And it is mapped to each narrowband channel corresponding to the corresponding tuning frequency of the selected azimuth angle. Meanwhile, the wide-band azimuth estimator 220 may be configured to select the azimuth from a signal having a Fourier coefficient calculated by frequency-converting the received wide-band hopping signal greater than or equal to a predetermined threshold provided from the signal collection control unit 240. .

Meanwhile, the narrowband signal converter 230 converts the received wideband frequency hopping signal into a narrowband signal for each mapped narrowband channel (S203).

In addition, the hopping signal combination collecting unit 240 stores the converted narrowband signal into a single signal by using the azimuth angle selected by the wideband azimuth estimating unit 220 (S204). 240 may be configured to store the converted narrowband signal into a single signal by matching the time delay generated for each narrowband channel. In addition, a maximum ratio combiner (MRC) or equal gain combiner (EGC) signal synthesis technique may be used. On the other hand, it may be controlled such as the storage time from the signal collection control unit 250.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the following claims It can be understood that

1 is a block diagram of a frequency hopping signal acquisition apparatus using an azimuth angle according to an embodiment of the present invention.

2 is a block diagram illustrating a wideband azimuth estimator in accordance with an embodiment of the present invention.

3 is a conceptual view illustrating the operation of the wideband azimuth estimator in accordance with an embodiment of the present invention.

4 is a block diagram of a narrowband conversion module according to an embodiment of the present invention.

5 is a block diagram illustrating a signal collector according to an embodiment of the present invention.

6 is a block diagram of a frequency hopping signal acquisition device using an azimuth according to another embodiment of the present invention.

7 is a block diagram illustrating a hopping signal combination collecting unit according to an exemplary embodiment of the present invention.

8 is a flowchart illustrating a frequency hopping signal collection method using an azimuth angle according to an embodiment of the present invention.

9 is a flowchart illustrating a method for collecting a frequency hopping signal using an azimuth according to another embodiment of the present invention.

DESCRIPTION OF THE RELATED ART [0002]

100: frequency hopping signal collector 110: broadband signal collector

120: wideband azimuth estimator 130: narrowband signal converter

140: signal collection unit 150: signal collection control unit

200: frequency hopping signal collector 210: wideband signal collector

220: wideband azimuth estimator 230: narrowband signal converter

240: hopping signal combination collector 250: signal acquisition controller

Claims (18)

A wideband signal receiver for receiving a wideband frequency hopping signal using the tuning frequency provided from the signal collection control unit; Compute the azimuth angle of the received wideband frequency hopping signal, select an azimuth angle within the azimuth calculation range provided from the signal collection control unit from the calculated azimuth angles, and add a wide azimuth angle to map the selected azimuth angle to a narrowband channel of the corresponding tuning frequency. government; A narrowband signal converter for converting the received wideband frequency hopping signal into a narrowband signal for each mapped narrowband channel; And Frequency hopping signal collection apparatus using the azimuth information including a signal collector for storing the converted narrowband signal. The method of claim 1, wherein the wideband azimuth estimator, And azimuth angles are selected from a signal having a Fourier coefficient calculated by frequency converting the received wideband frequency hopping signal from the signal collection controller. The wideband azimuth estimator is according to claim 2, Apparatus for collecting frequency hopping signals using azimuth information, characterized by calculating azimuth angles by applying a wideband FFT DOA estimation technique. The method of claim 3, An apparatus for collecting frequency hopping signals using azimuth information, characterized by further comprising an array antenna for receiving broadband frequency hopping signals incident in a predetermined direction. A wideband signal receiver for receiving a wideband frequency hopping signal using the tuning frequency provided from the signal collection control unit; Compute the azimuth angle of the received wideband frequency hopping signal, select an azimuth angle within the azimuth calculation range provided from the signal collection control unit from the calculated azimuth angles, and add a wide azimuth angle to map the selected azimuth angle to a narrowband channel of the corresponding tuning frequency. government; A narrowband signal converter for converting the received wideband frequency hopping signal into a narrowband signal for each mapped narrowband channel; And And a hopping signal combination collector configured to combine and store the converted narrowband signal into a single signal by using the azimuth selected by the wideband azimuth estimator. The method of claim 5, wherein the hopping signal combination collector, And collecting the narrowband signal converted by the narrowband signal converter into a single signal by matching time delays generated for each narrowband channel. The method of claim 6, wherein the hopping signal combination collector, An apparatus for collecting frequency hopping signals using azimuth information, characterized in that they are combined into a single signal using a maximum ratio combiner (MRC) or equal gain combiner (EGC) signal synthesis technique. The method of claim 7, wherein the wide-band azimuth estimator, And the azimuth angle is selected from a signal having a Fourier coefficient calculated by frequency converting the received wideband frequency hopping signal from a signal obtained from the signal collection control unit. The method of claim 8, wherein the broadband azimuth estimator, An apparatus for collecting frequency hopping signals using azimuth information, characterized in that azimuth is calculated by applying a wideband FFT DOA estimating technique. 10. The method of claim 9, And an array antenna for receiving a wideband frequency hopping signal incident in a predetermined direction. Receiving a wideband frequency hopping signal using the provided tuning frequency; Calculating an azimuth angle of the received wideband frequency hopping signal; Selecting an azimuth angle within an azimuth calculation range provided from the signal collection control unit among the calculated azimuth angles, and mapping the selected azimuth angle to a narrowband channel of a corresponding tuning frequency; Converting the received wideband frequency hopping signal into a narrowband signal for each mapped narrowband channel; And Frequency hopping signal collection method using azimuth information comprising the step of storing the converted narrowband signal. 12. The method of claim 11, wherein the azimuth angle within the azimuth angle calculation range provided from the signal collection control unit is selected from the calculated azimuth angles, and the mapping of the azimuth angles into a narrowband channel of the corresponding tuning frequency includes: And selecting the azimuth angle from a signal having a Fourier coefficient calculated by frequency converting the received wideband frequency hopping signal from the signal collection controller. The method of claim 12, wherein calculating the azimuth angle of the received wideband frequency hopping signal comprises: A frequency hopping signal collection method using azimuth information, characterized in that the azimuth is calculated by applying the wideband FFT DOA Estimation Technique. Receiving a wideband frequency hopping signal using the provided tuning frequency; Calculating an azimuth angle of the received wideband frequency hopping signal; Selecting an azimuth angle within an azimuth calculation range provided from the signal collection control unit among the calculated azimuth angles, and mapping the selected azimuth angle to a narrowband channel of a corresponding tuning frequency; Converting the received wideband frequency hopping signal into a narrowband signal for each mapped narrowband channel; And And combining and storing the converted narrowband signal into a single signal by using the azimuth angle selected by the wideband azimuth estimator. 15. The method of claim 14, wherein combining and storing the converted narrowband signal into a single signal by using the azimuth angle selected by the wideband azimuth estimator, And storing the converted narrowband signal by combining the time delay generated for each narrowband channel into a single signal and storing the converted narrowband signal. The method of claim 15, wherein the storing of the narrowband signal by combining the converted narrowband signal into a single signal by using the wideband frequency hopping signal of the tuning frequency provided from the signal collection control unit using the azimuth angle selected by the wideband azimuth estimator, A method of collecting frequency hopping signals using azimuth information, comprising combining them into a single signal using a maximum ratio combiner (MRC) or equal gain combiner (EGC) signal synthesis technique. The method of claim 16, wherein the selecting of the azimuth angle within the azimuth calculation range provided from the signal collection control unit from the calculated azimuth angle, and mapping the selected azimuth angle to a narrowband channel of the corresponding tuning frequency, Frequency amplifying the received wideband frequency hopping signal, wherein the azimuth angle is selected from a signal having a calculated Fourier coefficient greater than or equal to a predetermined threshold. 18. The method of claim 17, wherein calculating the azimuth angle of the received wideband frequency hopping signal comprises: A method of collecting frequency hopping signals using azimuth information, characterized by calculating azimuth angles for narrowband channels by applying a wideband FFT DOA estimation technique.

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