A deceptive pulse generation device and method for dual-array cooperative control

Abstract

The present application provides a deception pulse generation device and method for dual-array collaborative control. The device transmits a deception signal in the first frequency band and a real signal in the second frequency band through a radar transmitting module. The dual-band antenna array radiates deception pulses in the first frequency band and real pulses in the second frequency band based on a unified timing sequence. The radar receiving module receives the target echo signal corresponding to the deception pulse and the active false target interference signal corresponding to the transmitting pulse. The signal analysis module detects and analyzes the target echo signal and the active false target interference signal, obtains the analysis result to determine whether the deception pulse signal achieves the expected result, and the adaptive resource management module receives the analysis result and determines the system control strategy to achieve collaborative control and resource scheduling of the dual-band antenna array. The cross-band deception pulse generation is achieved through the dual-band array collaborative control device, so that the jammer cannot intercept the real pulse, weakens the interference effect from the source, and effectively improves the anti-interference capability of the radar system.

Description

Technical Field

[0001] The present invention relates to the field of electronic countermeasures for multifunctional phased array radars, and in particular to a deception pulse generating device and a generating method for dual-array cooperative control. Background Art

[0002] Electronic warfare activities include detecting and jamming enemy electronic systems, electronically protecting friendly electronic systems, and countering technical reconnaissance, jamming, and natural interference. Typical electronic countermeasures (ECCM) include protecting systems from jamming and preventing them from being detected by enemy ELINT.

[0003] Radio Frequency Store-and-Forward (DRFM) technology is a mainstream technology used in modern radar jammers. It acquires radar signals, stores and copies them with high fidelity, and modulates them through frequency shifting, delaying, and superimposing. This generates deceptive false target signals that are coherent with the radar signal, thereby deceiving and jamming threatening targets. With the advancement of high-speed acquisition and processing technologies, DRFM technology is capable of digitally quantizing and replicating radar signals with high precision. In particular, with the development of wideband receiver technology, anti-jamming measures based on single radar antennas are becoming increasingly ineffective due to their inherent bandwidth limitations. Currently, the instantaneous bandwidth of mainstream jammers with DRFM functionality does not exceed 2 GHz, making them unable to simultaneously interfere with RF signals with frequency spacing exceeding 2 GHz.

[0004] Deception pulses are an active anti-deception jamming method for phased array radars. From a system design perspective, deception pulses are added to prevent enemy jammers from detecting and intercepting radar transmission signals at the source, destroying the correlation between false target interference and real pulses, and weakening the jamming effect.

[0005] In the prior art, conventional deception pulses are difficult to cope with the problem of broadband jammers using DRFM technology, which reduces the anti-interference capability of the radar system and makes the anti-interference reliability of the radar system relatively poor. Summary of the Invention

[0006] The present invention provides a deceptive pulse generation device and method for dual-array cooperative control, which is applicable to a dual-band phased array radar with a cooperative control function.

[0007] A first aspect of the present invention provides a spoofing pulse generation device for dual-array cooperative control, the device comprising: a radar transmitting module, the radar transmitting module being configured to generate and transmit a spoofing signal in a first frequency band and a real signal in a second frequency band based on radar signal parameters;

[0008] The dual-band antenna array is configured to radiate spoof pulses in the first frequency band and real pulses in the second frequency band based on a unified timing sequence;

[0009] The radar receiving module includes a first receiver and a second receiver, and the radar receiving module is configured to receive a target echo signal corresponding to a deception pulse and an active false target interference signal corresponding to a transmission pulse based on a unified timing sequence;

[0010] A signal analysis module, the signal analysis module is configured to detect and analyze target echo signals and active false target interference signals to obtain analysis results;

[0011] An adaptive resource management module is configured to determine whether the spoofing pulse signal achieves the expected result by receiving and analyzing the results, and to adjust the system control strategy to achieve coordinated control and resource scheduling of the dual-band antenna array;

[0012] The signal analysis module is electrically connected to the radar receiving module, and the adaptive resource management module is electrically connected to the signal analysis module and the radar receiving module respectively.

[0013] Preferably, the dual-band antenna array includes: a first array and a second array arranged on the same antenna frame, and the deception signal and the real signal are radiated through the space of the first array and the space of the second array respectively.

[0014] Preferably, the radar transmitting module further includes:

[0015] A frequency synthesis combination, the frequency synthesis combination including a frequency synthesis module for generating a reference signal, and a plurality of waveform generators for transmitting a spoof signal in a first frequency band and a real signal in a second frequency band;

[0016] Preferably, the radar receiving module further includes:

[0017] The digital processing unit includes a first receiver and a second receiver, and the first receiver and the second receiver are configured to digitally process the spoof signal in the first frequency band and the real signal in the second frequency band respectively.

[0018] Preferably, the device further comprises: a timing control module, the timing control module being configured to output a synchronization control and / or coordination control signal for controlling the timing relationship between the spoofing pulse and the transmitting pulse, the spoofing pulse being emitted as a leading pulse.

[0019] A second aspect of the present application provides a deceptive pulse generation method for dual-array cooperative control, the method comprising:

[0020] Start the radar, collect radar signals in the electromagnetic environment, and analyze the electromagnetic spectrum of the radar signals;

[0021] Based on the analysis results of the electromagnetic spectrum, the deception signal operating frequency and the real signal operating frequency of the dual-band antenna array are selected;

[0022] Under the control of a unified timing sequence, a deceptive signal in the first frequency band and a real signal in the second frequency band are generated and transmitted according to radar signal parameters, and radiated into space through the dual-band antenna array respectively;

[0023] Under the control of unified timing, the target echo signal corresponding to the received deception pulse and the active false target interference signal corresponding to the transmitted pulse are received;

[0024] Detect and analyze target echo signals and active false target interference signals to obtain analysis results;

[0025] Adjust the system control strategy based on the analysis results to achieve coordinated control and resource scheduling of dual-band antenna arrays.

[0026] In a possible implementation of the second aspect, collecting radar signals in an electromagnetic environment and analyzing the electromagnetic spectrum of the radar signals includes:

[0027] Obtain the noise power of the electromagnetic environment signal and the interference status of the current radar signal in the corresponding frequency band,

[0028] The electromagnetic spectrum of the radar signal is analyzed based on the noise power and interference conditions to obtain the purity of the electromagnetic spectrum.

[0029] In a possible implementation of the second aspect, generating and transmitting a spoofing signal in a first frequency band and a true signal in a second frequency band based on radar signal parameters, and radiating them into space through the dual-band antenna array, respectively, includes:

[0030] The frequency interval between the first frequency band and the second frequency band at least exceeds the instantaneous operating bandwidth of the radar receiving module when it is operating, and

[0031] The transmission time interval between the first frequency band and the second frequency band is smaller than the switching time of the signal type received by the first receiver and / or the second receiver.

[0032] In a possible implementation of the second aspect, the unified timing control includes:

[0033] The pulse width of the real pulse is smaller than the pulse width of the spoof pulse, or

[0034] The spoof pulse is transmitted before and after the real pulse is transmitted respectively, and the transmission interval between the real pulse and the spoof pulse is less than a preset time interval, preferably less than 1 us.

[0035] In a possible implementation of the second aspect, detecting and analyzing the target echo signal and the active false target interference signal to obtain the analysis result includes:

[0036] Analyze the noise floor of the target echo signal and determine whether the noise floor elevation is higher than the preset amplitude.

[0037] If so, it is determined that the dual-band array is subject to noise suppression interference.

[0038] If not, continue to perform pulse compression and constant false alarm detection on the target echo signal and record the detection results.

[0039] In a possible implementation of the second aspect, continuously performing pulse compression and constant false alarm detection on the target echo signal, and recording the detection results includes:

[0040] When a detection point target is detected, the detection point track is matched with the transmitting array of the dual-band antenna array corresponding to the real pulse;

[0041] In the case of unsuccessful track matching, the deception pulse is determined to have produced effective deception;

[0042] If the track matching is successful, it is determined that no effective deception has occurred, the determination result is saved, and the system control strategy is adjusted based on the determination result to achieve coordinated control and resource scheduling of the dual-band antenna array;

[0043] The system control strategy includes: the pulse radiation type of each array face of the dual-band antenna array and / or the pulse transmission frequency band and / or the pulse waveform and / or the time interval between the deceptive pulse and the real pulse transmission.

[0044] The technical solution proposed in this application has at least the following beneficial technical effects:

[0045] Under the control of the system's unified timing, the radar transmitting module generates cross-band deception signals and real signals according to the radar signal parameters. The first array and the second array in the same space are controlled by the dual-band array based on the unified timing to generate deception pulses and transmission pulses respectively. Through the coordinated control of the dual-band array, the deception pulses and transmission pulses operate in different frequency bands respectively, realizing cross-band deception pulse generation, making it impossible for the jammer to intercept the radar's real pulse signal, weakening the interference effect from the source, and effectively improving the radar system's anti-interference capability.

[0046] The dual-band array shared frequency synthesis module and timing control module, signal analysis module, and adaptive resource management module in this application analyze whether the deception pulse has achieved effective deception. According to the deception effect of the deception signal, the adaptive resource management module realizes the coordinated control and resource scheduling of the dual array, produces a dragging effect on the channelized jammer with DRFM function, making it unable to detect the real signal of the radar, thereby effectively implementing system anti-interference.

[0047] The frequency interval between the real pulses and deception pulses emitted by the dual-band array of the present application exceeds the instantaneous working bandwidth of the DRFM receiver, and the transmission time interval between the real pulses and the deception pulses is less than the switching time of the receiver receiving the signal, resulting in the radar jammer being unable to effectively interfere with the transmitted signal when storing and forwarding the deception pulses, thereby reducing the probability of the radar transmitting pulses being intercepted by the jammer from the source and achieving the purpose of system anti-interference. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. It is obvious that the drawings described below are only some embodiments of the present invention.

[0049] In the attached figure:

[0050] Figure 1 This is a schematic diagram of the dual-band radar deception pulse working scenario provided by the present invention.

[0051] Figure 2 This is a block diagram of a deceptive pulse generating device for dual-array cooperative control provided by the present invention.

[0052] Figure 3 This is a diagram of a deceptive pulse generating device for dual-array cooperative control provided by the present invention.

[0053] Figure 4 The present invention provides a deception pulse generation method for dual-front cooperative control.

[0054] Figure 5 This is a schematic diagram of a dual-array unified timing coordinated control timing provided by the present invention.

[0055] Figure 6 It is a schematic diagram of an effective deception determination method provided by the present invention. DETAILED DESCRIPTION

[0056] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0057] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships described in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0058] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0059] In the description of the present invention, it should be noted that the term "or" is generally used in a sense including "and / or", unless the content clearly indicates otherwise.

[0060] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only intended to illustrate the present invention and are not intended to limit the scope of protection of the present invention. Improvements and adjustments made by those skilled in the art in accordance with the present invention in actual applications still fall within the scope of protection of the present invention.

[0061] In order to solve the problem that traditional deception pulses are difficult to deal with broadband jammers using DRFM technology, the present invention adopts a dual-band antenna array to generate deception pulses and transmission signals based on two different frequency bands, thereby realizing cross-band deception pulse generation, making it impossible for the jammer to intercept the real radar pulses, weakening the interference effect at the source, and effectively improving the anti-interference capability of the radar system.

[0062] The following is based on Figures 1 to 6 , specifically describe the preferred embodiments of the present invention:

[0063] Specifically, Figure 1A schematic diagram of a dual-band radar deception pulse operating scenario is shown. In this embodiment, the radar signal and the deception signal are transmitted by different antenna arrays installed on the same caliber, with the deception signal in the first frequency band and the real signal in the second frequency band transmitted under unified timing control. By receiving the target echo signal corresponding to the deception pulse and the active false target jamming signal corresponding to the transmitted pulse, a channelized jammer with DRFM functionality is deflected, preventing it from detecting the real radar signal, thereby effectively implementing system anti-interference.

[0064] like Figure 2 As shown in FIG, the present invention provides a block diagram of a spoof pulse generating device for dual-front cooperative control, comprising:

[0065] A radar transmitting module 100, the radar transmitting module 100 is configured to generate and transmit a spoofing signal in a first frequency band and a real signal in a second frequency band according to radar signal parameters;

[0066] A dual-band antenna array 200 is configured to radiate spoof pulses in a first frequency band and real pulses in a second frequency band based on a uniform timing sequence;

[0067] The radar receiving module 300 is configured to receive the target echo signal corresponding to the deception pulse and the active false target interference signal corresponding to the transmission pulse based on a unified timing sequence;

[0068] The signal analysis module 400 is configured to detect and analyze the target echo signal and the active false target interference signal to obtain analysis results;

[0069] Adaptive resource management module 500, which is configured to determine whether the spoofing pulse signal achieves the expected result by receiving the analysis result and adjust the system control strategy to achieve coordinated control and resource scheduling of the dual-band antenna array 200;

[0070] The signal analysis module 400 is electrically connected to the radar receiving module 300 , and the adaptive resource management module 500 is electrically connected to the signal analysis module 400 and the radar receiving module 300 , respectively.

[0071] like Figure 3 As shown in the figure, a spoofing pulse generation device with dual-array cooperative control provided by the present invention is provided. In the device, the dual-band antenna array 200 can be a dual-band co-aperture phased array antenna array, including: a first array 201 and a second array 202 arranged in the same antenna frame. The spoofing signal and the real signal are radiated into the space of the first array 201 and the space of the second array 202 respectively through the dual-band array 100.

[0072] The radar transmitting module 100 also includes: a frequency synthesis combination 101, which includes a frequency synthesis module 1013 for generating a reference signal, and several waveform generators for transmitting spoofing signals in the first frequency band and real signals in the second frequency band, including waveform generator 1011 and waveform generator 1012; waveform generator 1011 and waveform generator 1012 generate real pulses of real signals across frequency bands and spoofing pulses corresponding to spoofing signals for the first array 201 and the second array 202 respectively.

[0073] The frequency synthesizer module 1013 is electrically connected to the dual-band array 100 and the processing unit, and is used to generate the reference signal required for the operation of the device;

[0074] The radar receiving module 300 includes a digital processing unit 301, which includes a first receiver 3011 and a second receiver 3012. The first receiver and the second receiver are configured to digitally process spoofing signals in the first frequency band and real signals in the second frequency band, respectively, and are used to amplify, filter, and collect the spoofing signals and real signals received by the first array 201 and the second array 202, respectively. The first receiver 3011 and the second receiver 3012 can be DRFM receivers.

[0075] In one embodiment of the present application, the signal emitted by the first array 201 is either a spoofing signal or a genuine signal, while the second array 202 correspondingly emits a different signal. The types of signals radiated by the first array 201 and the second array 202 are not specifically limited. For example, under the control of the adaptive management module 500 and the timing control module 600 shared by the dual-band arrays, the first array or the second array can be selected to transmit and receive the dual-band working signals of the spoofing pulses and the genuine radar pulses, respectively.

[0076] In one embodiment of the present application, the dual-band co-aperture radar array adopts a frequency diversity design. The two arrays operate in different frequency bands, and the two arrays are deployed in the same plane. The first array 201 and the second array 202 can adopt a distributed aperture design or a co-aperture nested design, which is not limited here.

[0077] In one embodiment of the present application, the device further includes a timing control module 600, which is configured to output synchronization control and / or coordinated control signals that control the timing relationship between the spoofing pulse and the transmitted pulse, with the spoofing pulse being emitted as a pre-pulse. The timing control module 600 generates the synchronization control and / or coordinated control signals required by the system and is electrically connected to the frequency synthesis combination 101, the first array 201, the second array 202, the first receiver 3011, and the receiver 3012. The signal analysis module 400 receives the digital signal received by the radar receiving module 300 corresponding to the dual-band antenna array 200 and performs pulse compression, target detection, track filtering, and other processing. The adaptive resource management module 500 is used to implement resource management of the dual-band antenna array 200, uniformly generate system control strategies, and achieve coordinated control of the system.

[0078] Furthermore, the adaptive resource management module 500 can decide whether to adjust the system control strategy and / or the transmission strategy of the radar transmitting module 100 based on the deception effect, thereby realizing the coordinated control and resource scheduling of the dual-band antenna array; the waveform generator 1011 and the waveform generator 1012 can receive the scheduling command of the adaptive resource management module 500, and respectively generate the waveform of the real pulse and the waveform of the deception pulse under the control of the timing signal 600, which are radiated into space through the first array 201 and the array 20222, thereby realizing the cross-band deception pulse generation and effectively implementing system anti-interference.

[0079] Furthermore, the adaptive resource management module 500 realizes waveform generation and selection adaptation, frequency selection adaptation, beam management control adaptation, and task scheduling adaptation of the real signal of the first frequency band and the deceptive signal of the second frequency band radiated by the dual-band antenna array 200 according to the actual environmental conditions and interference situations faced by the radar, which can adapt to the ever-changing battlefield environment to the greatest extent and can also count the system resources of the radar.

[0080] In one embodiment of the present application, Figure 4 As shown, the present invention provides a deceptive pulse generation method for dual-front cooperative control, which includes the following steps:

[0081] Step S1: Start the radar, collect radar signals in the electromagnetic environment, and analyze the electromagnetic spectrum of the radar signals;

[0082] Step S2: selecting the spoofing signal operating frequency and the real signal operating frequency of the dual-band antenna array according to the analysis results of the electromagnetic spectrum;

[0083] Step S3: Under the control of a unified timing sequence, a spoofing signal in the first frequency band and a real signal in the second frequency band are generated and transmitted according to the radar signal parameters, and are radiated into space through the dual-band antenna array respectively;

[0084] Step S4: Under the control of the unified timing, the radar receiving module is configured to receive the target echo signal corresponding to the deception pulse and the active false target interference signal corresponding to the transmission pulse based on the unified timing;

[0085] Step S5: Detect and analyze the target echo signal and the active false target interference signal to obtain analysis results;

[0086] Step S6: Adjust the system control strategy according to the analysis results to achieve coordinated control and resource scheduling of the dual-band antenna array.

[0087] In the above step S1, collecting radar signals in the electromagnetic environment and analyzing the electromagnetic spectrum of the radar signals include:

[0088] Obtain the noise power of the electromagnetic environment signal and the interference status of the current radar signal in the corresponding frequency band. Analyze the electromagnetic spectrum of the radar signal based on the noise power and interference status to obtain the purity of the electromagnetic spectrum.

[0089] It is understandable that when the radar starts working, it does not transmit any signal. It first collects electromagnetic environment signals for analysis, including noise power analysis, frequency band interference analysis, etc. The analysis of electromagnetic environment signals provides a reference basis for the operating frequency point of the radar to transmit the real signal.

[0090] In the above step S3, generating and transmitting a spoofing signal of the first frequency band and a real signal of the second frequency band according to the radar signal parameters, and radiating them into space through the dual-band antenna array respectively includes:

[0091] The frequency interval between the first frequency band and the second frequency band at least exceeds the instantaneous operating bandwidth of the radar receiving module when it is operating, and

[0092] The transmission time interval between the first frequency band and the second frequency band is smaller than the switching time of the signal type received by the first receiver and / or the second receiver.

[0093] Based on the spectrum analysis results, the adaptive resource management module selects a relatively pure frequency point in the electromagnetic spectrum as the radar signal operating frequency point, selects an operating frequency point on another array as the deception pulse operating frequency point, and sends instructions to each extension;

[0094] Under the control of the same timing, the radar transmitting module generates and transmits a deception signal and a real signal according to the radar signal parameters, and radiates them into space through the antenna respectively; specifically, the first array 201 or the second array surface 202 responds to the transmission synchronization signal, and the corresponding second array surface 202 or the first array surface 201 responds to the deception pulse signal synchronization signal, and generates a deception pulse and a transmission pulse respectively; at the same time, the target echo signal corresponding to the real signal and the active false target interference signal emitted by the jammer are received for detection and analysis, and according to the analysis results, it is determined whether the deception pulse meets the expectations and the system control strategy for the next scheduling cycle is adjusted in real time to realize the coordinated control and resource scheduling of the dual-band antenna array surface.

[0095] In one embodiment of the present application, the unified timing control includes: the pulse width of the real pulse is smaller than the pulse width of the spoof pulse, or the spoof pulse is transmitted before and after the real pulse is transmitted, and the transmission interval between the real pulse and the spoof pulse is smaller than the preset time interval.

[0096] Specifically, if Figure 5 As shown, a schematic diagram of a dual-array unified timing cooperative control timing provided by the present invention, in which deception pulses and transmission pulse timings are generated respectively in the synchronous control and / or cooperative control mode and sent to each extension to realize synchronous management and control of the emitted waveform, the timing control relationship of the deception pulse and the transmission pulse, includes transmission mode 1: the radar pulse is transmitted within the transmission envelope of the transmission pulse, or transmission mode 2: the deception pulse is transmitted before and after the radar transmission pulse, and the transmission interval is less than 1us.

[0097] Specifically, the adaptive resource module 500 adjusts the pulses radiated by the dual-band array 100 so that the transmission interval between the real pulse and the spoof pulse is less than 1 microsecond, and the operating frequency interval is not less than 2 GHz. For example, the spoof signal is ahead of the real pulse signal transmitted by the radar in timing, so that the DRFM jammer intercepts the spoof pulse first. When it stores and forwards or otherwise processes the spoof pulse, the operating frequency corresponding to the real pulse transmitted by the radar is not within its instantaneous detection bandwidth, making it impossible for the jammer to obtain the real signal transmitted by the radar.

[0098] like Figure 6 This is a schematic diagram of an effective deception determination method provided by the present invention. The first array 201 or the second array 202 transmitting array corresponding to the deception pulse receives the echo signal, which is amplified and analog-to-digital converted by the corresponding first receiver 3011 or second receiver 3012 and then sent to the signal analysis module 400. The signal analysis module 400 analyzes the echo noise floor to determine whether the amplitude of the noise floor increase exceeds a preset amplitude. If the noise floor increases significantly, it is considered that the dual-band array 200 is subject to noise suppression interference. If the noise floor does not change significantly, pulse compression and constant false alarm detection are continuously performed on the target echo signal, and the detection results are recorded.

[0099] Specifically, pulse compression and constant false alarm detection are continuously performed on the target echo signal, and the detection results are recorded, including: when the detection point target is detected, the detection point track is track matched with the transmitting array of the dual-band antenna array corresponding to the real pulse; when the track matching is unsuccessful, it is determined that the deception pulse produces effective deception; when the track matching is successful, it is determined that no effective deception is produced and the jammer does not receive interference from the deception pulse, the judgment result is saved, and the system control strategy is adjusted according to the judgment result to realize the coordinated control and resource scheduling of the dual-band antenna array 200.

[0100] For example, if a target is detected, the track of the detection point is matched with the first array 201 or the second array 202 corresponding to the actual pulse emission of the radar. If the track of the dual-band array 200 does not match, it is determined that the deceptive pulse is effective in deceiving the jammer. Otherwise, it is determined that there is no interference, and the judgment result is sent to the adaptive resource management module 500.

[0101] Furthermore, the adaptive resource management module 500 can decide whether to adjust the system control strategy based on the deception effect. The adjustment of the system control strategy includes: the pulse radiation type and / or the pulse transmission frequency band and / or the pulse waveform and / or the time interval between the deception pulse and the real pulse transmission, the timing relationship, etc. of each array surface of the dual-band antenna array surface 200.

[0102] The foregoing is merely a preferred embodiment of the present invention. Those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. Furthermore, under the guidance of the present invention, these features and embodiments may be modified to suit specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be within the scope of the present invention.

Claims

1. A deceptive pulse generation device for dual-front cooperative control, characterized in that: The device comprises: a radar transmitting module, the radar transmitting module being configured to generate and transmit spoof pulses in a first frequency band and real pulses in a second frequency band according to radar signal parameters; The radar receiving module includes a first receiver and a second receiver, and the radar receiving module is configured to receive the target echo signal corresponding to the deception pulse and the active false target interference signal corresponding to the transmission pulse based on a unified timing sequence; A dual-band antenna array surface, the dual-band antenna array surface being configured to radiate the spoof pulses of the first frequency band and the real pulses of the second frequency band based on a unified timing sequence; wherein the spoof pulses of the first frequency band and the real pulses of the second frequency band are generated and transmitted according to radar signal parameters, and are respectively radiated into space through the dual-band antenna array surface, including: the frequency interval between the first frequency band and the second frequency band at least exceeds the instantaneous operating bandwidth of the radar receiving module when operating, and the transmission time interval between the first frequency band and the second frequency band is less than the switching time of the signal type received by the first receiver and / or the second receiver; a signal analysis module, the signal analysis module being configured to detect and analyze the target echo signal and the active false target interference signal to obtain an analysis result; an adaptive resource management module, the adaptive resource management module being configured to determine whether the spoofing pulse signal achieves the expected result by receiving the analysis result, and to adjust the system control strategy to achieve coordinated control and resource scheduling of the dual-band antenna array; The signal analysis module is electrically connected to the radar receiving module, and the adaptive resource management module is electrically connected to the signal analysis module and the radar receiving module respectively.

2. The spoof pulse generation device for dual-front cooperative control according to claim 1, characterized in that: The dual-band antenna array includes: a first array and a second array arranged in the same antenna frame, and the spoof pulse and the real pulse are radiated through the space of the first array and the space of the second array respectively.

3. The spoof pulse generation device for dual-front cooperative control according to claim 1, characterized in that: The radar transmitting module also includes: A frequency synthesis combination, comprising a frequency synthesis module for generating a reference signal, and a plurality of waveform generators for transmitting deceptive pulses in the first frequency band and real pulses in the second frequency band.

4. The spoof pulse generation device for dual-front cooperative control according to claim 1, characterized in that: The device further comprises: A timing control module is configured to output a synchronization control and / or coordination control signal for controlling a timing relationship between the spoof pulse and the transmit pulse, wherein the spoof pulse is emitted as a leading pulse.

5. A deceptive pulse generation method for dual-front cooperative control, characterized in that: The device according to any one of claims 1 to 4 is used, wherein the method comprises: Starting the radar, collecting radar signals in the electromagnetic environment, and analyzing the electromagnetic spectrum of the radar signals; selecting a spoof pulse operating frequency point and a real pulse operating frequency point of the dual-band antenna array according to the analysis result of the electromagnetic spectrum; Under unified timing control, spoof pulses in the first frequency band and real pulses in the second frequency band are generated and transmitted according to radar signal parameters, and are radiated into space respectively through the dual-band antenna array surface. The generating and transmitting of spoof pulses in the first frequency band and real pulses in the second frequency band according to radar signal parameters, and are radiated into space respectively through the dual-band antenna array surface, includes: a frequency interval between the first frequency band and the second frequency band at least exceeds the instantaneous operating bandwidth of the radar receiving module when operating, and a transmission time interval between the first frequency band and the second frequency band is less than a switching time of signal types received by the first receiver and / or the second receiver. Under the control of a unified timing sequence, the radar receiving module is configured to receive the target echo signal corresponding to the deception pulse and the active false target interference signal corresponding to the transmission pulse based on a unified timing sequence; Detecting and analyzing the target echo signal and the active false target interference signal to obtain analysis results; The system control strategy is adjusted according to the analysis results to achieve coordinated control and resource scheduling of the dual-band antenna array.

6. The method for generating deceptive pulses for dual-front cooperative control according to claim 5, characterized in that: Collecting radar signals in an electromagnetic environment and analyzing the electromagnetic spectrum of the radar signals includes: Obtain the noise power of the electromagnetic environment signal and the interference status of the current radar signal in the corresponding frequency band, The electromagnetic spectrum of the radar signal is analyzed according to the noise power and the interference condition to obtain the purity of the electromagnetic spectrum.

7. The method for generating deceptive pulses for dual-front cooperative control according to claim 5, characterized in that: Unified timing control includes: The pulse width of the true pulse is smaller than the pulse width of the spoof pulse, or The spoof pulse is transmitted before and after the real pulse is transmitted, and the transmission interval between the real pulse and the spoof pulse is less than a preset time interval.

8. The method for generating deceptive pulses for dual-front cooperative control according to claim 5, characterized in that: Detecting and analyzing the target echo signal and the active false target interference signal, and obtaining analysis results includes: Analyze the noise floor of the target echo signal to determine whether the amplitude of the noise floor elevation is higher than a preset amplitude. If so, it is determined that the dual-band antenna array is subject to noise suppression interference. If not, continue to perform pulse compression and constant false alarm detection on the target echo signal, and record the detection results.

9. The method for generating deceptive pulses for dual-front cooperative control according to claim 8, characterized in that: Continuously perform pulse compression and constant false alarm detection on the target echo signal, and record the detection results including: When a detection point target is detected, the detection point track is matched with the transmitting array of the dual-band antenna array corresponding to the real pulse; In the case of unsuccessful track matching, the deception pulse is determined to have produced effective deception; If the track matching is successful, it is determined that no effective deception has occurred, the determination result is saved, and the system control strategy is adjusted according to the determination result to achieve coordinated control and resource scheduling of the dual-band antenna array; The system control strategy includes: the pulse radiation type of each array face of the dual-band antenna array and / or the pulse transmission frequency band and / or the pulse waveform and / or the time interval between the transmission of the deceptive pulse and the real pulse.

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