CN107966685B - Time history display method and system for radar one-time information A display - Google Patents
Time history display method and system for radar one-time information A display Download PDFInfo
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- CN107966685B CN107966685B CN201711129994.7A CN201711129994A CN107966685B CN 107966685 B CN107966685 B CN 107966685B CN 201711129994 A CN201711129994 A CN 201711129994A CN 107966685 B CN107966685 B CN 107966685B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/04—Display arrangements
- G01S7/06—Cathode-ray tube displays or other two dimensional or three-dimensional displays
- G01S7/062—Cathode-ray tube displays or other two dimensional or three-dimensional displays in which different colours are used
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/04—Display arrangements
- G01S7/06—Cathode-ray tube displays or other two dimensional or three-dimensional displays
- G01S7/20—Stereoscopic displays; Three-dimensional displays; Pseudo-three-dimensional displays
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Abstract
The invention relates to a time history display method for primary radar information A display, which comprises the steps of obtaining primary radar information of radar echo signals, and carrying out target comprehensive analysis processing on the primary radar information to obtain a target analysis result; establishing a three-dimensional drawing scene, and displaying radar primary information of the target analysis result in a preset range by using a three-dimensional drawing with amplitude, distance and time as coordinate axes; the radar primary information comprises distance and amplitude information of radar echo signals. According to the method, the radar primary information of the target analysis result in the preset range is displayed by using the three-dimensional graph with the amplitude, the distance and the time as coordinate axes, so that a radar operator can visually know the echo signal condition in a period of time according to the three-dimensional graph and comprehensively consider the echo signal. The invention also provides a time history display system for the primary information A display of the radar.
Description
Technical Field
The invention relates to the technical field of radars, in particular to a time history display method and a time history display system for one-time information A display of a radar.
Background
The radar primary information is an original radar signal output by the radar signal processing subsystem. The radar primary information A display is used for displaying the distance-amplitude relation of the radar primary information.
The traditional radar primary information A display adopts a real-time display mode, and only displays the relation between the target amplitude and the distance at the current moment. The method is not beneficial to the comprehensive consideration of the operator according to the display information, and the next operation cannot be reasonably and accurately executed.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art and provides a method and a system for displaying the time history of one-time information A display of a radar.
One technical solution for solving the above technical problems of the present invention is as follows: a time history display method for radar one-time information A display comprises the following steps:
acquiring radar primary information of a radar echo signal, and performing target comprehensive analysis processing on the radar primary information to obtain a target analysis result;
establishing a three-dimensional drawing scene, and displaying radar primary information of the target analysis result in a preset range by using a three-dimensional drawing with amplitude, distance and time as coordinate axes;
the radar primary information comprises distance and amplitude information of radar echo signals.
The invention has the beneficial effects that: according to the invention, the radar primary information of the target analysis result in the preset range is displayed by using the three-dimensional graph with amplitude, distance and time as coordinate axes, so that a radar operator can visually know the echo signal condition in a period of time according to the three-dimensional graph and comprehensively consider the echo signal.
On the basis of the technical scheme, the invention can be further improved as follows.
Further, the establishing of the three-dimensional drawing scene, and displaying the radar primary information of the target analysis result within a preset range by using a three-dimensional graph with amplitude, distance and time as coordinate axes comprises:
receiving a target analysis result; the target analysis result comprises a plurality of data sequences, and the plurality of data sequences comprise I path carrier modulation data, Q path carrier modulation data and distance data;
extracting amplitude values from the I path of carrier modulation data and the Q path of carrier modulation data to form an amplitude and distance data sequence;
drawing a three-dimensional graph of the radar primary information with amplitude, distance and time as coordinate axes in the built three-dimensional drawing scene;
and displaying the three-dimensional graph according to the set preset measuring range.
The method has the advantages that the amplitude, the distance and the corresponding time information are obtained, the three parameters are used as coordinates to draw the three-dimensional graph in the three-dimensional drawing scene, the relation between the amplitude and the distance in a period of time can be visually displayed by the three-dimensional graph, abundant, accurate and visual reference information is provided for a radar operator, the operator comprehensively considers the displayed information, and the next operation is reasonably and accurately executed.
Further, in the three-dimensional map, the amplitude value is displayed in a gradient manner from the first color to the second color in the three-dimensional coordinate, wherein the minimum value of the amplitude range corresponds to the first color, the maximum value of the amplitude range corresponds to the second color, and the middle value between the minimum value and the maximum value of the amplitude range is a gradient color between the first color and the second color.
The further scheme has the advantages that the display of the amplitude value from low to high is set to be gradually changed from one color to another color, so that an operator can observe the change trend conveniently and can react quickly.
Further, the first color is blue and the second color is red.
The further scheme has the advantages that the blue and red colors are bright, and the contrast analysis is convenient.
Further, acquiring radar primary information of a radar echo signal, and performing target comprehensive analysis processing on the radar primary information to obtain a target analysis result, wherein the target analysis result comprises:
outputting a high-frequency pulse signal with a rectangular envelope through a transmitting subsystem;
transmitting the high-frequency pulse signal to a detected airspace through a radar antenna, and receiving a radar echo signal by the radar antenna;
controlling the time-sharing connection of the radar antenna with the transmitting subsystem and the radar subsystem through the transceiving switch;
preprocessing the radar echo signal through a receiving subsystem to obtain a signal suitable for being processed by a signal processing subsystem;
performing signal processing on the preprocessed radar echo signals through a signal processing subsystem to obtain radar primary information;
performing target comprehensive analysis processing according to the radar primary information through a data processing subsystem to obtain a target analysis result;
and generating a pulse sequence with a preset repetition frequency through a timer, and triggering the transmitting subsystem, the receiving subsystem, the signal processing subsystem, the data processing subsystem, the display control subsystem and the receiving and transmitting switch to work.
The radar antenna is connected with the transmitting subsystem by the receiving and transmitting switch during transmitting, and after the transmitting subsystem sends out a high-frequency pulse signal, the radar antenna is disconnected with the transmitting subsystem and is connected with the receiving subsystem, so that the receiving subsystem can receive a radar echo signal at any time; the transmitting subsystem transmits a high-frequency pulse signal through a radar antenna, the receiving subsystem amplifies a received weak radar echo signal and transmits the amplified radar echo signal to the signal processing subsystem, the signal processing subsystem performs signal processing on the radar echo signal to generate primary radar information, and the data processing subsystem performs target analysis on the primary radar information to obtain a target analysis result; by carrying out the processing and analysis on the radar echo signals, the primary information of the radar can be quickly and effectively acquired.
Another technical solution of the present invention for solving the above technical problems is as follows: a time history display system for radar one-time information A display comprises:
the radar signal processing subsystem is used for acquiring radar primary information of a radar echo signal and performing target comprehensive analysis processing on the radar primary information to obtain a target analysis result;
the display control subsystem is used for establishing a three-dimensional drawing scene, and displaying radar primary information of the target analysis result in a preset range by using a three-dimensional graph with amplitude, distance and time as coordinate axes;
the radar primary information comprises distance and amplitude information of radar echo signals.
The invention has the beneficial effects that: according to the invention, the radar primary information of the target analysis result in the preset range is displayed by using the three-dimensional graph with amplitude, distance and time as coordinate axes, so that a radar operator can visually know the echo signal condition in a period of time according to the three-dimensional graph and comprehensively consider the echo signal.
On the basis of the technical scheme, the invention can be further improved as follows.
Further, the display and control subsystem comprises:
the data receiving module is used for receiving a target analysis result; the target analysis result comprises a plurality of data sequences, and the plurality of data sequences comprise I path carrier modulation data, Q path carrier modulation data and distance data;
the data processing module is used for extracting amplitude values from the I path of carrier modulation data and the Q path of carrier modulation data to form a data sequence of the amplitude and the distance;
the display drawing module A is used for drawing a three-dimensional drawing of the radar primary information with amplitude, distance and time as coordinate axes in a built three-dimensional drawing scene, and displaying the three-dimensional drawing according to a set preset range;
and the man-machine interaction module is used for setting a preset range and/or sending radar control parameters.
The method has the advantages that the amplitude, the distance and the corresponding time information are obtained, the three parameters are used as coordinates to draw the three-dimensional graph in the three-dimensional drawing scene, the relation between the amplitude and the distance in a period of time can be visually displayed by the three-dimensional graph, abundant, accurate and visual reference information is provided for a radar operator, the operator comprehensively considers the displayed information, and the next operation is reasonably and accurately executed.
Further, in the amplitude distance time three-dimensional graph drawn by the A-display drawing module, the amplitude value is displayed in a gradient manner from a first color to a second color in three-dimensional coordinates, wherein the minimum value of the amplitude range corresponds to the first color, the maximum value of the amplitude range corresponds to the second color, and the middle value between the minimum value and the maximum value of the amplitude range is the gradient color between the first color and the second color.
The further scheme has the advantages that the display of the amplitude value from low to high is set to be gradually changed from one color to another color, so that an operator can observe the change trend conveniently and can react quickly.
Further, the first color is blue and the second color is red.
The further scheme has the advantages that the blue and red colors are bright, and the contrast analysis is convenient.
Further, the radar signal processing subsystem includes:
the transmitting subsystem is used for outputting a high-frequency pulse signal with a rectangular envelope;
the radar antenna is used for transmitting the high-frequency pulse signal to a detected airspace; the radar echo signal receiving module is also used for receiving a radar echo signal;
the receiving and transmitting switch is used for controlling the time-sharing connection of the radar antenna with the transmitting subsystem and the radar subsystem;
the receiving subsystem is used for preprocessing the radar echo signal to obtain a signal suitable for being processed by the signal processing subsystem;
the signal processing subsystem is used for carrying out signal processing on the preprocessed radar echo signals to obtain radar primary information;
the data processing subsystem is used for carrying out target comprehensive analysis processing according to the radar primary information to obtain a target analysis result;
and the timer is used for generating a pulse sequence with preset repetition frequency and triggering the transmitting subsystem, the receiving subsystem, the signal processing subsystem, the data processing subsystem, the display control subsystem and the receiving and transmitting switch to work.
The receiving and sending switch has the advantages that the receiving and sending switch has the function of isolating the sending subsystem and the receiving subsystem, the radar antenna is connected with the sending subsystem through the receiving and sending switch during the sending period, and after the sending subsystem sends out a high-frequency pulse signal, the radar antenna is disconnected with the sending subsystem through the receiving and sending switch and is connected with the receiving subsystem, so that the receiving subsystem can receive a radar echo signal at any time; the transmitting subsystem transmits a high-frequency pulse signal through a radar antenna, the receiving subsystem amplifies a received weak radar echo signal and transmits the amplified radar echo signal to the signal processing subsystem, the signal processing subsystem performs signal processing on the radar echo signal to generate primary radar information, and the data processing subsystem performs target analysis on the primary radar information to obtain a target analysis result; by carrying out the processing and analysis on the radar echo signals, the primary information of the radar can be quickly and effectively acquired.
Drawings
FIG. 1 is a schematic flow chart of a method for displaying a time history of a primary radar message A according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of a method for displaying a time history of a primary radar message A according to another embodiment of the present invention;
FIG. 3 is a schematic flow chart of a method for displaying a time history of a primary radar message A according to another embodiment of the present invention;
FIG. 4 is a schematic structural block diagram of a time history display system for displaying primary radar information A according to an embodiment of the present invention;
FIG. 5 is a schematic block diagram of a time history display system for displaying primary radar information A according to another embodiment of the present invention;
FIG. 6 is a schematic block diagram of a time history display system for displaying primary radar information A according to another embodiment of the present invention;
fig. 7 is a three-dimensional diagram of radar primary information in an embodiment of the invention.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
Fig. 1 is a schematic flow chart of a method for displaying a time history of a radar one-time information a display according to an embodiment of the present invention. As shown in fig. 1, the method includes:
s110, acquiring radar primary information of a radar echo signal, and performing target comprehensive analysis processing on the radar primary information to obtain a target analysis result;
s120, establishing a three-dimensional drawing scene, and displaying radar primary information of the target analysis result in a preset range by using a three-dimensional graph with amplitude, distance and time as coordinate axes;
wherein the radar primary information comprises distance and amplitude information of radar echo signals.
In the embodiment, the radar primary information of the target analysis result in the preset range is displayed by the three-dimensional graph with the amplitude, the distance and the time as coordinate axes, so that a radar operator can visually know the echo signal condition in a period of time according to the three-dimensional graph and comprehensively consider the echo signal.
Optionally, as an embodiment of the present invention, as shown in fig. 2, the obtaining radar primary information of a radar echo signal, and performing target comprehensive analysis processing on the radar primary information, and the obtaining a target analysis result includes:
s210, outputting a high-frequency pulse signal with a rectangular envelope through a transmitting subsystem;
s220, transmitting the high-frequency pulse signal to a detected airspace through a radar antenna, and receiving a radar echo signal by the radar antenna;
s230, controlling the time-sharing connection of the radar antenna with the transmitting subsystem and the radar subsystem through the transceiving switch;
s240, preprocessing the radar echo signal through a receiving subsystem to obtain a signal suitable for being processed by a signal processing subsystem;
s250, performing signal processing on the preprocessed radar echo signal through a signal processing subsystem to obtain radar primary information;
s260, carrying out target comprehensive analysis processing through the data processing subsystem according to the radar primary information to obtain a target analysis result;
in the method, a pulse sequence with a preset repetition frequency is generated through a timer, and the transmitting subsystem, the receiving subsystem, the signal processing subsystem, the data processing subsystem, the display control subsystem and the receiving and transmitting switch are triggered to work. The receiving and transmitting switch plays a role in isolating the transmitting subsystem from the receiving subsystem, the receiving and transmitting switch connects the radar antenna with the transmitting subsystem during transmitting, and after the transmitting subsystem sends out a high-frequency pulse signal, the receiving and transmitting switch disconnects the radar antenna from the transmitting subsystem and connects with the receiving subsystem, so that the receiving subsystem is in a state of being capable of receiving radar echo signals at any time; the transmitting subsystem transmits a high-frequency pulse signal through a radar antenna, the receiving subsystem amplifies a received weak radar echo signal and transmits the amplified radar echo signal to the signal processing subsystem, the signal processing subsystem performs signal processing on the radar echo signal to generate primary radar information, and the data processing subsystem performs target analysis on the primary radar information to obtain a target analysis result; by carrying out the processing and analysis on the radar echo signals, the primary information of the radar can be quickly and effectively acquired.
Optionally, as an embodiment of the present invention, as shown in fig. 3, the creating a three-dimensional drawing scene, and displaying the radar primary information of the target analysis result within a preset range by using a three-dimensional drawing with amplitude, distance, and time as coordinate axes includes:
s310, receiving a target analysis result; the target analysis result comprises a plurality of data sequences, and the plurality of data sequences comprise I path carrier modulation data, Q path carrier modulation data and distance data;
specifically, the I path carrier modulation data is marked as Ii(i ═ 0,1,2,3 …); q-path carrier modulated data, denoted as Qi(i ═ 0,1,2,3 …); distance data, denoted Ri(i ═ 0,1,2,3 …); the (I + 1) th data are (I, Q, R)iI, Q data corresponding to the distance R are shown.
Each time the data is received, a time stamp is carried indicating the time at which the data was generated. And when the drawing is displayed, displaying the calculated amplitude at the corresponding position of the time axis according to the corresponding time.
S320, extracting amplitude values from the I path of carrier modulation data and the Q path of carrier modulation data to form a data sequence of the amplitude and the distance;
specifically, the calculation formula is as follows:
where A represents the amplitude value calculated by I, Q, the data sequence (A, R)i(i＝0,1,2,3…) indicates that the i +1 th data has distance data of R and corresponding amplitude data of A.
S330, drawing a three-dimensional graph of the radar primary information with amplitude, distance and time as coordinate axes in the built three-dimensional drawing scene;
and S340, displaying the three-dimensional graph according to the set preset measuring range.
In the embodiment, the amplitude, the distance and the corresponding time information are obtained, and the three parameters are used as coordinates to draw the three-dimensional graph in the three-dimensional drawing scene, so that the relation between the amplitude and the distance in a period of time can be visually displayed by the three-dimensional graph, abundant, accurate and visual reference information is provided for a radar operator, the operator comprehensively considers the displayed information, and the next operation is reasonably and accurately executed.
In this embodiment, in the three-dimensional map, the amplitude value is displayed in a gradient manner from the first color to the second color in the three-dimensional coordinates, wherein the minimum value of the amplitude range corresponds to the first color, the maximum value of the amplitude range corresponds to the second color, and the intermediate value between the minimum value and the maximum value of the amplitude range is a gradient color between the first color and the second color. In this embodiment, the display of the amplitude values from low to high is set to fade from one color to another, facilitating the operator to observe the trend of the change, reacting quickly.
Preferably, the first color is blue and the second color is red. In this embodiment, the blue and red colors are vivid and facilitate the contrast analysis.
The time history display method for providing radar one-time information a display according to the embodiment of the present invention is described in detail above with reference to fig. 1 to 3. The time history display system for providing the radar one-time information a display according to the embodiment of the present invention is described in detail below with reference to fig. 4.
Fig. 4 is a schematic structural block diagram of a time history display system for displaying radar one-time information a according to an embodiment of the present invention. As shown in fig. 4, the system includes a radar signal processing subsystem 100 and a display control subsystem 200.
The radar signal processing subsystem 100 is configured to acquire radar primary information of a radar echo signal, and perform target comprehensive analysis processing on the radar primary information to obtain a target analysis result; the display control subsystem 200 is used for establishing a three-dimensional drawing scene, and displaying radar primary information of the target analysis result in a preset range by using a three-dimensional graph with amplitude, distance and time as coordinate axes; the radar primary information comprises distance and amplitude information of radar echo signals.
In the embodiment, the radar primary information of the target analysis result in the preset range is displayed by the three-dimensional graph with the amplitude, the distance and the time as coordinate axes, so that a radar operator can visually know the echo signal condition in a period of time according to the three-dimensional graph and comprehensively consider the echo signal.
Optionally, as an embodiment of the present invention, as shown in fig. 5, the radar signal processing subsystem 100 includes: a transmitting subsystem 101, a radar antenna 102, a transceiving switch 103, a receiving subsystem 104, a signal processing subsystem 105, a data processing subsystem 106, and a timer 107.
The transmitting subsystem 101 outputs a high-frequency pulse signal with a rectangular envelope; the radar antenna 102 transmits the high-frequency pulse signal to a detected airspace and is also used for receiving a radar echo signal; the receiving and transmitting switch 103 controls the time-sharing connection of the radar antenna with the transmitting subsystem and the radar subsystem, the receiving and transmitting switch connects the radar antenna with the transmitting subsystem during transmitting, and after the transmitting subsystem sends out a high-frequency pulse signal, the receiving and transmitting switch disconnects the radar antenna with the transmitting subsystem and connects with the receiving subsystem, so that the receiving subsystem can receive a radar echo signal at any time; the receiving subsystem 104 preprocesses the radar echo signal to obtain a signal suitable for being processed by the signal processing subsystem; the signal processing subsystem 105 performs signal processing on the preprocessed radar echo signal to obtain radar primary information; the data processing subsystem 106 performs target comprehensive analysis processing according to the radar primary information to obtain a target analysis result; the timer 107 generates a pulse sequence with a preset repetition frequency to trigger the transmitting subsystem, the receiving subsystem, the signal processing subsystem, the data processing subsystem, the display control subsystem and the receiving and transmitting switch to work.
The components of the radar signal processing subsystem are described below.
The emission subsystem: consists of a modulator and a transmitter. The modulator generates rectangular pulses for modulating the output waveform of the transmitter; the transmitter outputs a high frequency pulse signal with a rectangular envelope.
Radar antenna: the pulse signal sent by the transmitting subsystem is directionally radiated to the free space under the control of the receiving and transmitting switch; the radar antenna receives the radar echo signal and transmits the radar echo signal to the receiving subsystem through the transceiving switch.
A receiving and transmitting switch: and the function of isolating the transmitting subsystem and the receiving subsystem is realized. During transmission, the radar antenna is disconnected from the receiving subsystem and switched on with the transmitting subsystem. When the transmitting subsystem sends out pulse, the receiving and transmitting switch disconnects the radar antenna from the transmitting subsystem and connects the receiving subsystem, so that the receiving subsystem can receive echo signal at any time.
A timer: the time control part of the whole radar generates a pulse sequence with a certain repetition frequency to trigger the receiving and transmitting switch, the modulator, the receiving subsystem, the signal processing subsystem, the data processing subsystem and the display control subsystem to work.
The receiving subsystem: and (3) amplifying the weak radar echo signals sent by the transceiver switch, wherein the amplification processing comprises low-noise high-frequency amplification, frequency mixing, intermediate-frequency amplification, detection, video amplification and the like, and then sending the target echo signals amplified to a certain degree to a signal processing subsystem.
The signal processing subsystem: and performing secondary processing on the target echo video signal sent by the receiving subsystem, wherein the secondary processing comprises video accumulation, clutter suppression, Doppler matched filtering, Constant False Alarm Rate (CFAR) detection, clutter map technology, ambiguity resolution, space-time two-dimensional processing, image processing, target identification and the like, and finally generating primary radar information.
The data processing subsystem: and according to the primary radar information sent by the signal processing, carrying out target identification judgment, target distance/angle/speed measurement, target track processing, multi-target tracking, target parameter coordinate transformation and the like.
When the radar signal processing subsystem works, a timer generates a pulse sequence with a certain repetition frequency, and a modulator and other radar subsystems are triggered to work. The modulator generates a series of waveforms transmitted by the high-power rectangular pulse modulation transmitter, so that the transmitter outputs a series of high-frequency pulse signals with rectangular envelopes, the high-frequency pulse signals reach the radar antenna through the transceiving switch, and the radar antenna transmits pulse type radio waves to a detected airspace to be transmitted out. When the radio wave hits the target during transmission, the energy of the wave will be absorbed partly, pass partly and scatter partly in all directions. Some of the scattered radio wave energy propagates toward the radar antenna, and becomes a radar echo. The echo reaching the radar antenna is received by the radar antenna to become a high-frequency signal, and the high-frequency signal reaches the receiving subsystem through the transceiving switch. The receiving subsystem detects useful target echo signals from clutter and noise interference, converts the target echo signals from high frequency to video through intermediate frequency, sends the video to the signal processing subsystem, performs digital signal detection and information extraction on the target echo signals, and obtains primary radar information, wherein the primary radar information comprises distance and amplitude information of radar echoes.
In the above embodiment, the transceiver switch plays a role in isolating the transmitting subsystem from the receiving subsystem, and during transmitting, the transceiver switch connects the radar antenna with the transmitting subsystem, and after the transmitting subsystem transmits a high-frequency pulse signal, the transceiver switch disconnects the radar antenna from the transmitting subsystem and connects the radar antenna with the receiving subsystem, so that the receiving subsystem is in a state of being capable of receiving a radar echo signal at any time; the transmitting subsystem transmits a high-frequency pulse signal through a radar antenna, the receiving subsystem amplifies a received weak radar echo signal and transmits the amplified radar echo signal to the signal processing subsystem, the signal processing subsystem performs signal processing on the radar echo signal to generate primary radar information, and the data processing subsystem performs target analysis on the primary radar information to obtain a target analysis result; by carrying out the processing and analysis on the radar echo signals, the primary information of the radar can be quickly and effectively acquired.
Optionally, as an embodiment of the present invention, as shown in fig. 6, the display control subsystem includes a data receiving module 201, a data processing module 202, an a display drawing module 203, and a human-computer interaction module 204.
The data receiving module 201 receives a target analysis result; the target analysis result comprises a plurality of data sequences, and the plurality of data sequences comprise I path carrier modulation data, Q path carrier modulation data and distance data; the data processing module 202 extracts amplitude values from the I-path carrier modulation data and the Q-path carrier modulation data to form an amplitude and distance data sequence; the A display drawing module 203 draws a three-dimensional graph of the radar primary information with amplitude, distance and time as coordinate axes in the built three-dimensional drawing scene, and displays the three-dimensional graph according to a set preset range; the human-computer interaction module 204 sets a preset range and/or sends radar control parameters.
In the embodiment, the amplitude, the distance and the corresponding time information are obtained, and the three parameters are used as coordinates to draw the three-dimensional graph in the three-dimensional drawing scene, so that the relation between the amplitude and the distance in a period of time can be visually displayed by the three-dimensional graph, abundant, accurate and visual reference information is provided for a radar operator, the operator comprehensively considers the displayed information, and the next operation is reasonably and accurately executed.
In this embodiment, in the amplitude distance time three-dimensional graph drawn by the a-display drawing module, the amplitude value is displayed in a gradient manner from the first color to the second color in three-dimensional coordinates, wherein the minimum value of the amplitude range corresponds to the first color, the maximum value of the amplitude range corresponds to the second color, and the middle value between the minimum value and the maximum value of the amplitude range is the gradient color between the first color and the second color. The display of the amplitude values from low to high is arranged to be gradually changed from one color to another color, so that the operator can observe the change trend and quickly respond.
Preferably, the first color is blue and the second color is red. The blue and red colors are vivid, and are convenient for comparative analysis.
The display and control subsystem: the system has a man-machine interaction function, displays primary radar information and radar working states, forms corresponding control parameters according to operation instructions of a radar operator, sends the control parameters to each subsystem of the radar, and controls the radar working states.
The three-dimensional graph in the embodiment of the invention is shown in fig. 7, wherein the X axis represents distance, the Y axis represents amplitude, and the Z axis represents time. In this embodiment, a general color gradient formula is adopted to display the amplitude values in a gradient manner from blue to red on three-dimensional coordinates, wherein the minimum value of the amplitude range corresponds to blue, the maximum value of the amplitude range corresponds to red, and the middle value between the minimum value and the maximum value of the amplitude range is a gradient color.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A time history display method for radar one-time information A display is characterized by comprising the following steps:
acquiring radar primary information of a radar echo signal, and performing target comprehensive analysis processing on the radar primary information to obtain a target analysis result;
establishing a three-dimensional drawing scene, and displaying radar primary information of the target analysis result in a preset range by using a three-dimensional drawing with amplitude, distance and time as coordinate axes;
the radar primary information comprises distance and amplitude information of radar echo signals;
the method for establishing the three-dimensional drawing scene and displaying the radar primary information of the target analysis result in the preset measuring range by using the three-dimensional drawing with the amplitude, the distance and the time as coordinate axes comprises the following steps:
receiving a target analysis result; the target analysis result comprises a plurality of data sequences, and the plurality of data sequences comprise I path carrier modulation data, Q path carrier modulation data and distance data;
extracting amplitude values from the I path of carrier modulation data and the Q path of carrier modulation data to form an amplitude and distance data sequence;
drawing a three-dimensional graph of the radar primary information with amplitude, distance and time as coordinate axes in the built three-dimensional drawing scene;
and displaying the three-dimensional graph according to the set preset measuring range.
2. The method according to claim 1, wherein the amplitude values are displayed in a gradient from a first color to a second color in the three-dimensional map in three-dimensional coordinates, wherein the minimum value of the amplitude range corresponds to the first color, the maximum value of the amplitude range corresponds to the second color, and the middle value between the minimum value and the maximum value of the amplitude range is the gradient color between the first color and the second color.
3. The method of claim 2, wherein the first color is blue and the second color is red.
4. The method according to any one of claims 1 to 3, wherein the acquiring radar primary information of a radar echo signal and performing target analysis processing on the radar primary information to obtain a target analysis result comprises:
outputting a high-frequency pulse signal with a rectangular envelope through a transmitting subsystem;
transmitting the high-frequency pulse signal to a detected airspace through a radar antenna, and receiving a radar echo signal by the radar antenna;
controlling the time-sharing connection of the radar antenna with the transmitting subsystem and the radar subsystem through the transceiving switch;
preprocessing the radar echo signal through a receiving subsystem to obtain a signal suitable for being processed by a signal processing subsystem;
performing signal processing on the preprocessed radar echo signals through a signal processing subsystem to obtain radar primary information;
performing target comprehensive analysis processing according to the radar primary information through a data processing subsystem to obtain a target analysis result;
and generating a pulse sequence with a preset repetition frequency through a timer, and triggering the transmitting subsystem, the receiving subsystem, the signal processing subsystem, the data processing subsystem, the display control subsystem and the receiving and transmitting switch to work.
5. A time history display system for displaying radar one-time information A is characterized by comprising:
the radar signal processing subsystem is used for acquiring radar primary information of a radar echo signal and performing target comprehensive analysis processing on the radar primary information to obtain a target analysis result;
the display control subsystem is used for establishing a three-dimensional drawing scene, and displaying radar primary information of the target analysis result in a preset range by using a three-dimensional graph with amplitude, distance and time as coordinate axes;
the radar primary information comprises distance and amplitude information of radar echo signals;
the display control subsystem comprises:
the data receiving module is used for receiving a target analysis result; the target analysis result comprises a plurality of data sequences, and the plurality of data sequences comprise I path carrier modulation data, Q path carrier modulation data and distance data;
the data processing module is used for extracting amplitude values from the I path of carrier modulation data and the Q path of carrier modulation data to form a data sequence of the amplitude and the distance;
the display drawing module A is used for drawing a three-dimensional drawing of the radar primary information with amplitude, distance and time as coordinate axes in a built three-dimensional drawing scene, and displaying the three-dimensional drawing according to a set preset range;
and the man-machine interaction module is used for setting a preset range and/or sending radar control parameters.
6. The system of claim 5, wherein the amplitude value is displayed in a gradient manner from a first color to a second color in three-dimensional coordinates in the amplitude distance time three-dimensional graph drawn by the A-display drawing module, wherein the minimum value of the amplitude range corresponds to the first color, the maximum value of the amplitude range corresponds to the second color, and the middle value between the minimum value and the maximum value of the amplitude range is the gradient color between the first color and the second color.
7. The system of claim 6, wherein the first color is blue and the second color is red.
8. The system of any of claims 5 to 7, wherein the radar signal processing subsystem comprises:
the transmitting subsystem is used for outputting a high-frequency pulse signal with a rectangular envelope;
the radar antenna is used for transmitting the high-frequency pulse signal to a detected airspace; the radar echo signal receiving module is also used for receiving a radar echo signal;
the receiving and transmitting switch is used for controlling the time-sharing connection of the radar antenna with the transmitting subsystem and the radar subsystem;
the receiving subsystem is used for preprocessing the radar echo signal to obtain a signal suitable for being processed by the signal processing subsystem;
the signal processing subsystem is used for carrying out signal processing on the preprocessed radar echo signals to obtain radar primary information;
the data processing subsystem is used for carrying out target comprehensive analysis processing according to the radar primary information to obtain a target analysis result;
and the timer is used for generating a pulse sequence with preset repetition frequency and triggering the transmitting subsystem, the receiving subsystem, the signal processing subsystem, the data processing subsystem, the display control subsystem and the receiving and transmitting switch to work.
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| CN112114291A (en) * | 2019-09-05 | 2020-12-22 | 北京无线电测量研究所 | Radar primary information display method |
| CN111537991B (en) * | 2020-05-20 | 2022-07-15 | 北京无线电测量研究所 | Processing method for displaying target containing azimuth information in radar view |
| CN111781561A (en) * | 2020-06-22 | 2020-10-16 | 芜湖易来达雷达科技有限公司 | Method for controlling upper computer and displaying target of civil millimeter wave radar |
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