CN113567934A - Radar detection method based on cooperation - Google Patents
Radar detection method based on cooperation Download PDFInfo
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- CN113567934A CN113567934A CN202110890985.XA CN202110890985A CN113567934A CN 113567934 A CN113567934 A CN 113567934A CN 202110890985 A CN202110890985 A CN 202110890985A CN 113567934 A CN113567934 A CN 113567934A
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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
- G01S7/28—Details of pulse systems
- G01S7/282—Transmitters
Abstract
The invention relates to a radar detection method based on cooperation, which comprises the following steps: s1: judging whether the radar detects a target or not through a radar detection equation, if the target is not detected, ending the detection, waiting for secondary detection, if the target is detected, performing tracking reconnaissance judgment on the detected target, and executing the step S2; s2: intercepting the time, space, frequency, energy and polar region modes of the target, if the interception is successful, executing the step S3, otherwise, ending; when interception is carried out, the radar reconnaissance equipment and a target need to be started up at the same time, otherwise, the target interception cannot be carried out, and the interception is carried out in a time domain mode; the target working frequency band needs to be within the working frequency band set by the antenna, and the interception is performed in a space domain mode; and aligning the frequency to ensure that the frequency range of the target is consistent with that of the reconnaissance receiver, and intercepting the target in a frequency domain mode.
Description
Technical Field
The invention relates to a detection method, in particular to a radar detection method based on cooperation.
Background
In order to ensure the normal operation of the radar in a complex electromagnetic environment, many high-performance radar of a new system and various types of radar related equipment appear, such as pulse compression radar, pulse doppler radar, synthetic aperture radar, different interference equipment, corresponding radar reconnaissance equipment and the like; therefore, aiming at the new technology adopted by the radar, corresponding interference measures are provided, such as smart noise interference, adaptive interference, distributed networking interference and the like. The research is mainly carried out on cooperative interference in the radar interference technology. The cooperative interference is a process of effectively interfering an enemy radar in order to shield a target of an own party according to the concept of cooperative work of a plurality of jammers, and the radar detects the target under the condition that the interference affects the radar through the cooperative work of the radar equipment, the radar reconnaissance equipment and the radar interference equipment. The research is based on the effectiveness and rationality analysis of radar cooperative interference, and the interference resource allocation and interference effect evaluation of the cooperative interference are mainly researched. By means of a key technology of the cooperative interference, detailed analysis is conducted on optimization task allocation and power allocation of the cooperative interference; secondly, the problem of interference resource allocation when multiple interference machines carry out cooperative interference is researched, and a specific allocation algorithm is demonstrated.
Disclosure of Invention
The invention aims to solve the technical problems that different types of radar equipment can detect targets differently under the interference condition at present, and cannot respond in time or effectively deal with the interference.
A coordination-based radar detection method, the method comprising the steps of: s1: judging whether the radar detects a target or not through a radar detection equation, if the target is not detected, ending the detection, waiting for secondary detection, if the target is detected, performing tracking reconnaissance judgment on the detected target, and executing the step S2; s2: intercepting the time, space, frequency, energy and polar region modes of the target, if the interception is successful, executing the step S3, otherwise, ending; when interception is carried out, the radar reconnaissance equipment and a target need to be started up at the same time, otherwise, the target interception cannot be carried out, and the interception is carried out in a time domain mode; the target working frequency band needs to be within the working frequency band set by the antenna, and the interception is performed in a space domain mode; aligning the frequency to ensure that the frequency band of the target is consistent with that of the reconnaissance receiver, and intercepting the frequency band as a frequency domain mode; if the echo energy of the reconnaissance receiver is less than the sensitivity of the reconnaissance receiver, the interception cannot be carried out, and the interception is carried out in an energy domain mode; the target and the reconnaissance receiver antenna are orthogonal in polarization mode, and cannot be intercepted, and the interception is polar-domain interception; s3: after confirming that the target is intercepted through the step S2, transmitting an interference signal through an interference machine; s4: and calculating and analyzing interference signals transmitted by the jammers to obtain an interference effect, wherein the radar cannot detect the target if the radar detects the interference signals successfully.
Further, the radar detection equation in step S1 detects by using the radar emission signal, and detects the echo energy generated after the target receives the radar through the radar emission signal, so as to determine whether the target is detected or not, and the echo energy P from the radar emission signal to the targetrsComprises the following steps:
wherein, PtIs the power of the signal generated by the radar transmitter, GtRepresenting the axial power gain, G, of the transmitting antennarRepresents the axial power gain of the receiving antenna,
denotes the radar cross-sectional area of the target, λ denotes the wavelength, and R is the distance between the radar and the target.
Further, the jammer in step S3 interferes with the radar signal through the foil strips, the foil strips belong to passive interference, and the radar signal is disturbed through the foil strips by putting a large number of randomly dispersed foil strip clouds or interference corridors formed by half-wavelength foil strip wires in the space.
Further, in step S1, the radar detection equation uses a radar emission signal to detect, and after the foil strip is detected by the radar emission signal, the echo energy reflected by the foil strip
Comprises the following steps:
wherein, PtIs the power of the signal generated by the radar transmitter, GtRepresenting the axial power gain, G, of the transmitting antennarRepresents the axial power gain of the receiving antenna,
the radar cross-section of the foil strip is indicated, λ represents the wavelength, and R is the distance between the radar and the foil strip.
Furthermore, the area of the foil strip, which generates the echo after being detected, is the radar scattering cross section area
Wherein the content of the first and second substances,
is the distribution space of the foil strips, N denotes the total number of foil strips,
the radar cross-sectional area of a single foil strip wire is shown, and the delta V is a radar target distinguishing unit.
Further, when the detection target is tracked, detected and determined in step S1, different radar target resolution units may be generated, where a target resolution unit of a single radar is:
wherein C is the speed of light,
for radar pulse width, R is the distance between the radar and the target,
for the azimuth beam width of the antenna,
is the elevation beamwidth of the antenna.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. according to the cooperation-based radar detection method, after the target is detected by the radar, if the radar is judged to be detected to intercept and intercept the radar, the corresponding jammer is started, so that the judgment radar tracks interference signals sent by the jammer, and the target can be prevented from being continuously tracked.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a flow chart of the method steps of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Examples
As shown in fig. 1, the invention relates to a radar detection method based on cooperation, which comprises the following steps: s1: judging whether the radar detects a target or not through a radar detection equation, if the target is not detected, ending the detection, waiting for secondary detection, if the target is detected, performing tracking reconnaissance judgment on the detected target, and executing the step S2; s2: intercepting the time, space, frequency, energy and polar region modes of the target, if the interception is successful, executing the step S3, otherwise, ending; when interception is carried out, the radar reconnaissance equipment and a target need to be started up at the same time, otherwise, the target interception cannot be carried out, and the interception is carried out in a time domain mode; the target working frequency band needs to be within the working frequency band set by the antenna, and the interception is performed in a space domain mode; aligning the frequency to ensure that the frequency band of the target is consistent with that of the reconnaissance receiver, and intercepting the frequency band as a frequency domain mode; if the echo energy of the reconnaissance receiver is less than the sensitivity of the reconnaissance receiver, the interception cannot be carried out, and the interception is carried out in an energy domain mode; the target and the reconnaissance receiver antenna are orthogonal in polarization mode, and cannot be intercepted, and the interception is polar-domain interception; s3: after confirming that the target is intercepted through the step S2, transmitting an interference signal through an interference machine; s4: and calculating and analyzing interference signals transmitted by the jammers to obtain an interference effect, wherein the radar cannot detect the target if the radar detects the interference signals successfully.
In step S1, the radar detection equation detects the target by using the radar emission signal, and detects the echo energy generated after the target receives the radar by using the radar emission signal, so as to determine whether the target is detected or not, and determine the echo energy P from the radar emission signal to the targetrsComprises the following steps:
wherein, PtIs the power of the signal generated by the radar transmitter, GtRepresenting the axial power gain, G, of the transmitting antennarRepresents the axial power gain of the receiving antenna,
representing the radar cross-section of the target, λ representing the wavelength, RIs the distance between the radar and the target.
The jammer in the step S3 performs interference through the foil strips, the foil strips belong to passive interference, and radar signals are disturbed through the foil strips by putting a large number of randomly dispersed foil strip clouds or interference corridors formed by half-wavelength foil strip wires in the space.
In the step S1, the radar detection equation uses a radar emission signal to detect, and after the foil strip is detected by the radar emission signal, the echo energy reflected by the foil strip
Comprises the following steps:
wherein, PtIs the power of the signal generated by the radar transmitter, GtRepresenting the axial power gain, G, of the transmitting antennarRepresents the axial power gain of the receiving antenna,
the radar cross-section of the foil strip is indicated, λ represents the wavelength, and R is the distance between the radar and the foil strip.
The area of the foil strip which generates the echo after being detected is the radar scattering sectional area
Wherein the content of the first and second substances,
is the distribution space of the foil strips, N denotes the total number of foil strips,
the radar cross-sectional area of a single foil strip wire is shown, and the delta V is a radar target distinguishing unit.
If it is not
And PrcThe foil strips successfully interfere with radar detection if the following equation is satisfied:
if the foil strip successfully interferes with radar detection, the radar does not detect the target.
When the detection target is tracked, detected and judged in step S1, different radar target resolution units may be generated, where a single radar target resolution unit is:
wherein C is the speed of light,
for radar pulse width, R is the distance between the radar and the target,
for the azimuth beam width of the antenna,
is the elevation beamwidth of the antenna.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (6)
1. A coordination-based radar detection method, the method comprising the steps of:
s1: judging whether the radar detects a target or not through a radar detection equation, if the target is not detected, ending the detection, waiting for secondary detection, if the target is detected, performing tracking reconnaissance judgment on the detected target, and executing the step S2;
s2: intercepting the time, space, frequency, energy and polar region modes of the target, if the interception is successful, executing the step S3, otherwise, ending; when interception is carried out, the radar reconnaissance equipment and a target need to be started up at the same time, otherwise, the target interception cannot be carried out, and the interception is carried out in a time domain mode; the target working frequency band needs to be within the working frequency band set by the antenna, and the interception is performed in a space domain mode; aligning the frequency to ensure that the frequency band of the target is consistent with that of the reconnaissance receiver, and intercepting the frequency band as a frequency domain mode; if the echo energy of the reconnaissance receiver is less than the sensitivity of the reconnaissance receiver, the interception cannot be carried out, and the interception is carried out in an energy domain mode; the target and the reconnaissance receiver antenna are orthogonal in polarization mode, and cannot be intercepted, and the interception is polar-domain interception;
s3: after confirming that the target is intercepted through the step S2, transmitting an interference signal through an interference machine;
s4: and calculating and analyzing interference signals transmitted by the jammers to obtain an interference effect, wherein the radar cannot detect the target if the radar detects the interference signals successfully.
2. The cooperative-based radar detection method according to claim 1, wherein the radar detection equation in step S1 performs detection using a radar emission signal, and detects an echo energy generated after the target receives the radar through the radar emission signal, so as to determine whether the target is detected or not and whether the radar emission signal reaches the echo energy P of the targetrsComprises the following steps:
wherein, PtIs the power of the signal generated by the radar transmitter, GtRepresenting the axial power gain, G, of the transmitting antennarIndicates the day of receptionThe axial power gain of the line is,
denotes the radar cross-sectional area of the target, λ denotes the wavelength, and R is the distance between the radar and the target.
3. The method of claim 1, wherein the jammer in step S3 jams the radar signal by a foil strip, the foil strip belongs to passive jamming, and the radar signal is disturbed by the foil strip through a foil strip cloud or interference corridor formed by putting a plurality of randomly dispersed half-wavelength foil strip wires in a space.
4. The synergy-based radar detection method according to claim 3, wherein the radar detection equation in step S1 uses a radar emission signal for detection, and after the radar emission signal detects the foil strip, the foil strip reflects an echo energy
Comprises the following steps:
wherein, PtIs the power of the signal generated by the radar transmitter, GtRepresenting the axial power gain, G, of the transmitting antennarRepresents the axial power gain of the receiving antenna,
the radar cross-section of the foil strip is indicated, λ represents the wavelength, and R is the distance between the radar and the foil strip.
5. The method of claim 3, wherein the area of the foil strip that generates the echo after being detected is a radar cross-section area
Wherein the content of the first and second substances,
is the distribution space of the foil strips, N denotes the total number of foil strips,
the radar cross-sectional area of a single foil strip wire is shown, and the delta V is a radar target distinguishing unit.
6. The cooperative-based radar detection method according to claim 1, wherein the tracking and scouting determination of the detected target in step S1 results in different radar target resolution units, and the target resolution units of the single radar are:
wherein C is the speed of light,
for radar pulse width, R is the distance between the radar and the target,
for the azimuth beam width of the antenna,
is the elevation beamwidth of the antenna.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114966659A (en) * | 2022-06-06 | 2022-08-30 | 扬州宇安电子科技有限公司 | Radar target detection system and method based on machine learning |
| CN116224260A (en) * | 2023-05-06 | 2023-06-06 | 成都众享天地网络科技有限公司 | Radar three-dimensional power range calculation method based on interference |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140253368A1 (en) * | 2008-09-12 | 2014-09-11 | Propagation Research Associates, Inc. | Multi-mode, multi-static interferometer utilizing pseudo orthogonal codes |
| CN107271970A (en) * | 2017-09-04 | 2017-10-20 | 电子科技大学 | A kind of radar co-interfere method based on distributed platform |
| CN107390190A (en) * | 2017-09-19 | 2017-11-24 | 电子科技大学 | A kind of Multi-Target Passive co-interfere method formed into columns based on distribution |
| CN109031282A (en) * | 2018-07-27 | 2018-12-18 | 西安空间无线电技术研究所 | The system that a kind of electronic reconnaissance and radar detection work at the same time |
| CN110261856A (en) * | 2019-07-31 | 2019-09-20 | 北京邮电大学 | A kind of radar detection method and device based on the collaboration detection of more radars |
| CN111487597A (en) * | 2020-04-23 | 2020-08-04 | 成都众享天地网络科技有限公司 | Universal electronic reconnaissance interception simulation method based on time-space-frequency energy data |
| CN111722198A (en) * | 2020-06-28 | 2020-09-29 | 四川嘉义雷科电子技术有限公司 | Signal generation method and system combining radar detection and interference |
-
2021
- 2021-08-04 CN CN202110890985.XA patent/CN113567934B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140253368A1 (en) * | 2008-09-12 | 2014-09-11 | Propagation Research Associates, Inc. | Multi-mode, multi-static interferometer utilizing pseudo orthogonal codes |
| CN107271970A (en) * | 2017-09-04 | 2017-10-20 | 电子科技大学 | A kind of radar co-interfere method based on distributed platform |
| CN107390190A (en) * | 2017-09-19 | 2017-11-24 | 电子科技大学 | A kind of Multi-Target Passive co-interfere method formed into columns based on distribution |
| CN109031282A (en) * | 2018-07-27 | 2018-12-18 | 西安空间无线电技术研究所 | The system that a kind of electronic reconnaissance and radar detection work at the same time |
| CN110261856A (en) * | 2019-07-31 | 2019-09-20 | 北京邮电大学 | A kind of radar detection method and device based on the collaboration detection of more radars |
| CN111487597A (en) * | 2020-04-23 | 2020-08-04 | 成都众享天地网络科技有限公司 | Universal electronic reconnaissance interception simulation method based on time-space-frequency energy data |
| CN111722198A (en) * | 2020-06-28 | 2020-09-29 | 四川嘉义雷科电子技术有限公司 | Signal generation method and system combining radar detection and interference |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114966659A (en) * | 2022-06-06 | 2022-08-30 | 扬州宇安电子科技有限公司 | Radar target detection system and method based on machine learning |
| CN116224260A (en) * | 2023-05-06 | 2023-06-06 | 成都众享天地网络科技有限公司 | Radar three-dimensional power range calculation method based on interference |
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Denomination of invention: A radar detection method based on cooperation Effective date of registration: 20230113 Granted publication date: 20220408 Pledgee: Chengdu SME financing Company Limited by Guarantee Pledgor: Chengdu zhongxiangtiandi Network Technology Co.,Ltd. Registration number: Y2023980030341 |