A radar communication simulation method and system of adaptive deception strategy

Abstract

The application discloses a radar communication simulation method and system of self-adaptive deception strategy, comprising receiving a simulation scene selected by a user, a simulation device and an input frequency set, performing scene configuration according to the input frequency set, calculating signal timing to be generated by the simulation device and generating global timing according to corresponding behaviors and signal characteristics of the scene configuration; performing timing conflict detection and adjustment on the global timing to obtain task timing after timing conflict calibration; and sequentially issuing timing instructions of each simulation device to each simulation device according to the task timing for scene signal output. The signal timing of each simulation device in the simulation scene selected by the user is automatically detected and adjusted for conflict, so that the working state of each device in the real scene can be simulated, and the purpose of deceiving the detection device is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronics, in particular to a radar communication simulation method and system of adaptive deception strategy. BACKGROUND

[0002] With the evolution of modern electronic warfare technology, the integration of communication and radar systems (i.e., communication radar integration) has become a key direction to improve the effectiveness of military equipment. The traditional radar and communication system independent operation mode faces problems such as spectrum resource shortage and insufficient anti-interference capability, while the integration technology significantly improves the system efficiency and flexibility by sharing hardware and spectrum resources. However, the survivability of the integrated system in complex electromagnetic environment faces severe challenges, especially the demand for countermeasures against deception jamming is increasingly urgent. SUMMARY

[0003] The purpose of the present application is to provide a radar communication simulation method and system of adaptive deception strategy, which avoids the signal timing conflict problem that may occur in the communication radar integrated device by automatically detecting and adjusting the signal timing of each simulation device in the simulation scene selected by the user, so as to truly simulate the working state of each device in the real scene and achieve the purpose of deceiving the detection device.

[0004] In one aspect, the present application provides a radar communication simulation method of adaptive deception strategy, which specifically comprises the following steps:

[0005] S1, receiving a simulation scene selected by a user, simulation devices, and an input frequency set, configuring the scene according to the input frequency set, which includes configuring the device parameters and timing instructions of the simulation devices;

[0006] S2, calculating the signal timing that the simulation devices need to generate and generating the global timing according to the behaviors and signal characteristics corresponding to the scene configuration;

[0007] S3, detecting and adjusting the timing conflict of the global timing to obtain the task timing after timing conflict calibration;

[0008] S4, sequentially issuing the timing instructions of each simulation device to each simulation device according to the task timing for scene signal output.

[0009] In some specific embodiments, the simulation scene includes a plurality of scene tasks, and each simulation device in the simulation scene performs a corresponding scene task. The signal timing of each simulation device is: the start time, end time, and initial execution order of each simulation signal performed by the simulation device to complete the scene task, and the initial execution order is sequentially numbered. The specific process of the task timing after timing conflict calibration is:

[0010] S31, all the simulation signals under the same initial execution order number are taken as an initial timing group;

[0011] S32, the execution order of each simulation signal under each initial timing group is adjusted according to a timing conflict adjustment rule to obtain a corresponding adjustment timing group;

[0012] S33, the adjustment timing groups are spliced according to the initial execution order number to obtain a task timing after timing conflict calibration.

[0013] In some specific embodiments, the specific process of timing conflict adjustment is as follows:

[0014] When the priorities of the simulation signals in the initial timing group are different, the execution order of the simulation signals is adjusted according to the signal characteristics of the simulation signals, the signal characteristics of the simulation signals include periodic signals and single signals, and the priority of the simulation signals is that the priority of the periodic signals is higher than that of the single signals, and when the periodic signals and the single signals conflict, the single signals are shifted to the back of the periodic signals.

[0015] When the priorities of the simulation signals in the initial timing group are the same, the execution order of the simulation devices is adjusted according to the start time of the simulation signals.

[0016] In some specific embodiments, before step S2 generates the global timing, the initial execution order of the simulation signals of a single simulation device is further subjected to conflict detection and adjustment, and the specific process is as follows:

[0017] S21, for each simulation signal under each scene task, the initial execution order of the simulation signal is generated according to the type of the simulation signal;

[0018] S22, whether the signal characteristics of two adjacent simulation signals are the same is detected according to the initial execution order, if the same, the simulation signals with the same continuous signal characteristics are merged into one simulation signal, and the start time, end time and execution order of the simulation signal are adjusted to obtain a preliminary adjustment timing;

[0019] S23, whether there is a time conflict between two adjacent simulation signals in the preliminary adjustment timing is detected;

[0020] S24, if there is a time conflict, the start time and end time of the conflicting simulation signal are adjusted again, and the adjusted simulation signal is compared with the simulation signal of the next initial execution order.

[0021] In some specific embodiments, the specific process of adjusting the start time and end time of the conflicting simulation signal is as follows:

[0022] If a conflict exists, the priority of the signal characteristics of the two analog signals is compared. When the priorities are different, the analog signal with lower priority is placed after the analog signal with higher priority, and the start and end times of the analog signal with lower priority are adjusted.

[0023] When priorities are the same, the analog signal with a later start time is placed after the analog signal with an earlier start time, and the start and end times of the analog signal with a later start time are adjusted.

[0024] In some specific implementations, the types of analog signals include omnidirectional communication analog signals and radar directional analog signals. The signal characteristics of both omnidirectional communication analog signals and radar directional analog signals include periodic signals and single signals, with omnidirectional communication analog signals having a higher priority than radar directional analog signals.

[0025] In some specific implementation schemes, the process of calculating the signal timing required by the analog device is as follows:

[0026] Simulate the signals that the simulation device needs to emit when performing scene tasks in a simulated scenario to obtain simulated signals;

[0027] Calculate the minimum time slice of the analog signal based on the execution time of a single scenario task and the task interval time;

[0028] The analog signal is sliced ​​according to the minimum time slice to generate the required signal timing sequence for the analog signal.

[0029] In some specific implementation schemes, step S3 may further include:

[0030] Based on the timing conflict detection results, the number of simulation devices required in the current simulation scenario is recommended. Users can reselect simulation devices based on the timing conflict detection results or directly enter the number of simulation devices according to the recommended number.

[0031] When the user makes a new selection, steps S1-S3 are executed again.

[0032] The inventive concept of this application is as follows:

[0033] Because existing integrated communication and radar simulation systems, in order to jam and deceive the enemy,

[0034] It is necessary to complete the simulation of radar and radio false targets, use electronic deception means to create false appearance, and achieve the purpose of misleading enemy reconnaissance through confusion, disturbance, concealment and camouflage. Due to the limitation of hardware simulation equipment, the task time sequence of the scene task needs to be reasonably allocated in the fixed hardware simulation equipment to complete the simulation of complex scenes with as few hardware as possible. Therefore, after the scene configuration, time sequence conflict detection needs to be carried out, and reasonable adjustment is needed to complete the automatic allocation of scene tasks, and the simulation of scene signals is restored to the greatest extent.

[0035] In a second aspect, the application provides a radar communication simulation system with adaptive deception strategy, comprising scene construction display control software, which specifically comprises:

[0036] A scene configuration module is configured to receive a user-selected simulation scene, simulation equipment and input frequency set, configure the scene according to the input frequency set, and configure the device parameters and time sequence instructions of the simulation equipment;

[0037] A time sequence processing function block is configured to calculate the signal time sequence generated by the simulation equipment and generate a global time sequence according to the behavior and signal characteristics corresponding to the scene configuration;

[0038] A time sequence conflict adjustment module is configured to detect and adjust the global time sequence for time sequence conflict to obtain a task time sequence after time sequence conflict calibration;

[0039] A time sequence instruction generation module is configured to sequentially issue the time sequence instructions of each simulation equipment to each simulation equipment according to the task time sequence for scene signal output.

[0040] The application has the following beneficial effects:

[0041] The application solves the problem of insufficient survival ability of traditional systems in complex electromagnetic environments by fusing environment perception, dynamic strategy adjustment and multi-modal signal processing technology. The interference and deception means of automatic conflict detection and adjustment of the signal time sequence of each simulation equipment in the user-selected simulation scene avoid the possible signal time sequence conflict problem in the communication radar integrated equipment, so that the working state of each device in the real scene can be simulated, the purpose of deceiving the reconnaissance equipment is achieved, the enemy communication equipment cannot accurately identify the target, and the safety of the own target is protected, thereby providing key technical support for future electronic warfare and communication confrontation. BRIEF DESCRIPTION OF DRAWINGS

[0042] Figure 1 The radar communication simulation method with adaptive deception strategy provided by the embodiment of the application is shown in the flowchart;

[0043] Figure 2 The scene working time sequence overview indicates the intention.

[0044] Figure 3 A simulation device timing diagram is provided for the embodiments of the present application;

[0045] Figure 4 A timing conflict resolution diagram is provided for the embodiments of the present application;

[0046] Figure 5 A radar communication simulation system block diagram of the adaptive deception strategy is provided for the embodiments of the present application. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The description of the at least one example embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0048] Unless otherwise specified, the relative arrangement, numerical expressions and values of the components and steps set forth in these embodiments do not limit the scope of the present application.

[0049] At the same time, it should be understood that, for the convenience of description, the sizes of the various parts shown in the drawings are not drawn in accordance with the actual proportional relationship.

[0050] In addition, for the sake of clarity and brevity, the description of well-known structures, functions and configurations can be omitted. Those of ordinary skill in the art will recognize that various changes and modifications of the examples described herein can be made without departing from the spirit and scope of the disclosure.

[0051] The technology, methods and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered as part of the authorized description where appropriate.

[0052] In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary, and not as a limitation. Thus, other examples of example embodiments can have different values.

[0053] Embodiment 1

[0054] As Figure 1 shown, in one aspect, the present application provides a radar communication simulation method of adaptive deception strategy, specifically comprising the following steps:

[0055] S1, receive the user-selected simulation scene, simulation device and entered frequency set, configure the scene according to the entered frequency set, which includes configuring the device parameters and timing instructions of the simulation device;

[0056] S2, according to the behavior and signal characteristics corresponding to the scene configuration, calculate the signal timing required by the simulation device to generate and generate the global timing;

[0057] The process of calculating the signal timing required by the simulation device to generate is:

[0058] Simulate the signals that the simulation device needs to send when performing the scene task in the simulation scene to obtain simulation signals;

[0059] According to the single scene task execution time and the task interval time, calculate the minimum time slice of the simulation signal;

[0060] According to the minimum time slice, slice the simulation signal to generate the signal timing required by the simulation signal.

[0061] Before step S2 generates the global timing, it also includes conflict detection and adjustment of the initial execution order of each simulation signal of a single simulation device, and the specific process is:

[0062] S21, for each simulation signal under each scene task, generate the initial execution order of the simulation signal according to the type of the simulation signal; the type of the simulation signal includes communication omnidirectional simulation signal and radar directional simulation signal, and the signal characteristics of the communication omnidirectional simulation signal and the radar directional simulation signal include periodic signal and single signal, and the priority of the communication omnidirectional simulation signal is higher than that of the radar directional simulation signal.

[0063] S22, according to the initial execution order, detect whether the signal characteristics of the adjacent two simulation signals are the same in turn, if they are the same, merge the simulation signals with the same signal characteristics into one simulation signal and adjust the start time, end time and execution order of the simulation signal to obtain the preliminary adjustment timing;

[0064] S23, detect whether there is a time conflict between the adjacent two simulation signals in the preliminary adjustment timing in turn;

[0065] S24, if there is a time conflict, adjust the start time and end time of the conflicting simulation signal again, and compare the adjusted simulation signal with the next initial execution order simulation signal.

[0066] Specifically, the specific process of adjusting the start time and end time of the conflicting simulation signal is:

[0067] If there is a conflict, the priority of the signal characteristics of the two analog signals is compared, when the priorities are different, the analog signal with low priority is placed behind the analog signal with high priority, and the start time and end time of the analog signal with low priority are adjusted;

[0068] When the priorities are the same, the analog signal with late start time is placed behind the analog signal with early start time, and the start time and end time of the analog signal with late start time are adjusted.

[0069] S3, timing conflict detection and adjustment are performed on the global timing to obtain the task timing after timing conflict calibration;

[0070] The simulation scenario includes a plurality of scene tasks, and each simulation device under the simulation scenario executes a corresponding scene task. The signal timing of each simulation device is: to complete the scene task, the simulation device executes the start time, end time and initial execution order of each simulation signal. The initial execution order is sequentially numbered, and the specific process of the task timing after timing conflict calibration is:

[0071] S31, all simulation signals under the same initial execution order number are taken as an initial timing group;

[0072] S32, the execution order of each simulation signal in each initial timing group is adjusted according to the timing conflict adjustment rule to obtain a corresponding adjustment timing group;

[0073] S33, the adjustment timing groups are sequentially spliced according to the initial execution order number to obtain the task timing after timing conflict calibration.

[0074] The specific process of timing conflict adjustment is:

[0075] When the priorities of the simulation signals in the initial timing group are different, the execution order of the simulation signals is adjusted according to the signal characteristics of the simulation signals. The signal characteristics of the simulation signals include periodic signals and single signals, and the priority of the simulation signals is: the priority of the periodic signal is higher than that of the single signal. When the periodic signal and the single signal conflict, the single signal is shifted behind the periodic signal.

[0076] When the priorities of the simulation signals in the initial timing group are the same, the execution order of the simulation signals is adjusted according to the start time of the simulation signals.

[0077] S33, the adjustment timing groups are sequentially spliced according to the initial execution order number to obtain the task timing after timing conflict calibration.

[0078] The specific content of step S3 further includes:

[0079] According to the timing conflict detection result, the number of simulation devices required in the current simulation scene is recommended, and the user can reselect the simulation devices according to the timing conflict detection result or directly input the number of simulation devices according to the recommended number of simulation devices;

[0080] When the user reselects, steps S1-S3 are re-executed.

[0081] S4, the timing instructions of each simulation device are sequentially issued to each simulation device according to the task timing for scene signal output.

[0082] It can be understood that the user is provided with multiple simulation scenes for selection in the present application, and the user can also independently construct a simulation scene. During scene simulation, the user can select to load an existing scene for direct simulation, or can select a scene construction function block to modify and edit the existing scene. The modified scene task needs to be detected in the timing processing function block, and the software will recommend the number of simulation devices required according to the timing conflict detection. The user can return to modify and adjust the scene task, or can directly input the number of simulation devices that can be used. The software can automatically adjust the timing according to the number of simulation devices, and the timing can be saved after the adjustment is correct. The scene display interface is returned to select the adjusted scene task, and clicking run can start the task simulation. The scene task can also be paused and adjusted during the process.

[0083] During the scene task simulation process, the simulation signal and signal timing required by the simulation device are calculated according to the behavior and information characteristics of each device in the real scene, and the simulation signal is sliced using the minimum time slice according to the signal change law.

[0084] In terms of waveform design of the simulation signal, LFM signal can be used as the basic waveform, and by adjusting the frequency modulation parameters, signal bandwidth, pulse width and other parameters, the integration of radar and communication functions can be realized. The linear frequency modulation (LFM) signal is a signal whose instantaneous frequency changes linearly with time within a period. A period of time, a maximum frequency and a minimum frequency, and a linear multiple need to be set. The waveform is a sine wave that increases in frequency linearly from the minimum frequency to the maximum frequency within a period (this is up-conversion, if it is down-conversion, the frequency changes from large to small), and the next period repeats the operation of the previous period. Its expression is

[0085]

[0086] where A is the amplitude of the signal, f 0 is the frequency of the signal, T is the period length of the square wave, and t is the time length of the signal within a period, f t f 0+​​u t ) is a tuning function, u = B / t is the tuning frequency of the signal, and B is the bandwidth of the modulation.

[0087] The signal slice is sliced according to the minimum time slice, for example, for a radar signal, the minimum time slice is the single CPI (pulse repetition interval) time plus the CPI interval time, and in the minimum time slice, except that the signal phase needs to change continuously with time, other signal pulse parameters are the same. For a radio frequency hopping signal, the minimum time slice is the time of a single service hop plus the service interval time, and in the minimum time slice, the frequency points are switched according to the specified frequency points, the data content is changed according to the specified rule, and the other parameters remain unchanged. For a data link signal, the minimum time slice is the time of a single service duration plus the service interval time, and in the minimum time slice, the data content is changed according to the specified rule, and the other parameters remain unchanged. For radar jamming signals and communication jamming signals, the minimum time slice is the time of a single jamming duration plus the service interval time, and in the minimum time slice, the jamming signal parameters remain unchanged.

[0088] After generating the signal timing of each simulation device, as shown in Figure 2 , a global timing overview table generated according to all simulation devices selected by the user (assuming that the devices selected for simulation are the 171 radio and the 173 radio) is displayed to the user (only part of the timing is shown), the user can click the timing analysis button in the software timing overview interface according to the scene task required by the simulation scene to view the timing analysis, and the timing analysis will detect timing conflicts according to the scene task configured by the user. Through scene task detection, the software will recommend the number of real devices for the scene task and display the timing conflict situation, and the user can select to adjust the task timing or directly configure the actual available device number for this scene task. The software automatically allocates tasks and adjusts the timing according to the user's configuration of the number of real devices, and sorts the task timing according to the effective simulation device hardware to ensure the maximum implementation of the scene task.

[0089] When adjusting the signal timing of each device itself, the timing automatic adjustment sorting is designed to give priority to communication omnidirectional simulation signals, and then to radar directional signals, and at the same time, the scene task device allocation and timing adjustment are performed according to the task precedence principle, so as to finally realize the automatic adjustment of the overall scene task, generate the final task timing instruction, save the timing instruction, and through the simulation scene selection call in the combat scene, the software sequentially issues the timing instruction to complete the simulation of the scene task.

[0090] As shown in Figure 3 , the hardware simulation devices include one 171 radio and one 173 radio, and the timing of the two devices is as shown in Figure 3 ​It can be seen that there is an overlap between the analog signals of each analog device, so the timing conflict of the analog device itself needs to be detected first, then the timing conflict between the two devices is checked, and finally the timing of the two devices is adjusted to obtain the timing conflict calibration task timing in the analog scene, and the final task timing instruction is generated. Taking 171 radio as an example, it can be seen that the period 1.54 signal overlaps in time with the period 1.1 signal, both of which are periodic signals with the same priority, so the period 1.5 signal with the earlier start time is placed first. Since the period signal 1.5 repeats twice in succession twice, the two periodic signals are merged into a period 1.5 that repeats four times, and the execution time is added and inserted between the single signal period 1.1. The adjustment rule of other signals is the same. The period 1.1 repeats three times in succession three times, and is merged into a period 1.1 that repeats nine times. The period 1 repeats three times in succession three times, and is merged into a period 1 that repeats nine times. The period 2 of the 173 radio repeats twice in succession twice, and is merged into a period 2 that repeats four times. The order of the timing adjustment of the 171 radio and the 173 radio is shown in Figure 4 According to the execution order, the signal timing of the execution order 1~5 of the 171 radio is single signal→period 1.5, repeated four times→period 1.1, repeated nine times→single signal→period 1, repeated nine times, and the signal timing of the execution order 1~4 of the 173 radio is single signal→period 2, repeated four times→single signal→single signal.

[0091] When the signal timing of two analog devices overlaps in multiple position timelines, the timing conflict rule is formulated, and the timing conflict adjustment rule is: first, adjust the timing according to the start time. The priority of the periodic signal is higher than that of the single signal. When the periodic signal and the single signal conflict, the single signal is shifted to the back of the periodic signal. Then the timing adjustment result of the 171 radio and the 173 radio is shown in Figure 4 After automatic adjustment, Figure 4 It can be seen that the single signal of the 171 and the single signal of the 173 in the first execution order are taken as an example. As two signals under the same execution order, the priority of the two signals is the same, so the start time is checked. It can be seen that the start time of the 171 radio is earlier than that of the 173 radio, so the single signal of the 171 radio is placed before the single signal of the 173 radio for execution. When a single signal and a periodic signal appear, for example, the periodic signal of the third execution order of the 171 radio, which repeats nine times, and the single signal of the third execution order of the 173 radio, as an initial timing group, at this time, since the priority of the periodic signal is higher than that of the single signal, the periodic signal of the 171 radio, which repeats nine times, is placed before the single signal of the 173 radio for execution. The final timing after timing conflict calibration is shown in Figure 4 .

[0092] The following table 171 is an example of radio station equivalence analysis table. Through the working frequency band, bandwidth, working mode, the equivalent simulation radio station can achieve the purpose of deceiving the reconnaissance equipment:

[0093] Table 1 171 radio station equivalence analysis table

[0094] Simulation project Parameter or index Simulation capability Implementation method Equivalence Operating frequency band 30MHz~87.975MHz Supports simulation of 171 radio station 30MHz~87.975MHz frequency band operating signal, and the software can control the radio frequency output frequency in the range through the command. The radio station simulation is performed through the intermediate frequency signal simulation of the FPGA, the intermediate frequency port input is input through the radio frequency front end, the control radio frequency front end switch link is passed through the filter 2 to radiate through the 30MHz~460MHz antenna, without frequency conversion processing, and the 171 radio station 30MHz~87.975MHz signal full frequency band simulation is completed. The simulation device output frequency range can cover the 30MHz~87.975MHz signal full frequency band, the frequency interception in the communication reconnaissance equipment is consistent with the real 171 radio station reconnaissance result, and the purpose of deceiving the reconnaissance equipment can be achieved. Signal bandwidth 25kHz (fixed value) When the signal is modulated at the physical layer, the modulated radio frequency bandwidth is 25kHz. The signal is digitally shaped after modulation, the fixed signal bandwidth is 25kHz, and the radio station signal bandwidth simulation is realized. The simulator can realize the signal bandwidth of 25kHz, the signal bandwidth test value in the communication reconnaissance equipment is consistent with the real 171 radio station reconnaissance result, and the purpose of deceiving the reconnaissance equipment can be achieved. Operating mode Battle network (CNR), grouping network (PRN). The inter-hop interval of each service can be selected according to the operating mode. The CNR has an interval of 3 hops per service, and the PRN has an interval of 100 hops per service; the number of hops per service is 29. Different frequency hopping characteristics are realized through different operating modes, that is, the software has operating mode options, and different options correspond to different service quantities. The simulator can realize the signal emission law of the simulated battle network and grouping network through signal timing simulation, the operating mode in the communication reconnaissance equipment is consistent with the real 171 radio station reconnaissance result, and the purpose of deceiving the reconnaissance equipment can be achieved.

[0095] The radar jamming equivalent simulation is as follows Table 2, through the working frequency band, bandwidth, interference pattern simulation to achieve the purpose of deceiving the reconnaissance equipment.

[0096] Table 2 radar jamming equivalent analysis table

[0097] Simulation project Parameter or index Detection capability Simulation capability Implementation method Equivalence Operating frequency band 2GHz~18GHz Has the operating frequency band detection capability. Supports simulation of 2GHz~18GHz frequency band radar signal, and the intermediate frequency output of the signal processing board is up-converted through the radio frequency front end to complete signal emission. The radar signal is output through the DAC chip of the signal processing board, and is up-converted through the radio frequency front end module, and is radiated through the 2GHz~18GHz flat spiral antenna. The simulation device can achieve the frequency working range of the typical army control radar, artillery site detection radar, and battlefield reconnaissance radar by simulating the 2GHz~18GHz frequency band radar signal, so as to achieve the purpose of deceiving the reconnaissance equipment. Signal bandwidth Maximum 220MHz The reconnaissance equipment has the capability of detecting communication signal bandwidth. The simulation device DAC supports simulation of a maximum signal bandwidth of 220MHz. The signal bandwidth required is up to 220MHz, and if calculated according to 4 times oversampling, the clock rate needs 880MHz, while the DAC data rate of the hardware platform is 2000MHz, meeting the analog requirements. The analog device signal modulation bandwidth supports a maximum of 220MHz, and in the reconnaissance results of the reconnaissance device, the reconnaissance results of the real data link communication can be obtained. Interference pattern RF noise, noise frequency modulation, noise phase modulation, noise amplitude modulation, comb spectrum interference The reconnaissance device has the function of reconnaissance of interference signal modulation pattern. The radar signal interference has the following interference patterns: RF noise, noise frequency modulation, noise phase modulation, noise amplitude modulation, comb spectrum interference The baseband generates corresponding wideband interference signals such as RF noise, noise frequency modulation, noise phase modulation, noise amplitude modulation, and comb spectrum interference within the signal bandwidth, and then modulates them onto the corresponding carrier of the frequency band. The analog device radar interference signal pattern has RF noise, noise frequency modulation, noise phase modulation, noise amplitude modulation, and comb spectrum interference, and in the reconnaissance results of the reconnaissance device, the reconnaissance results of the real data link communication can be obtained.

[0098] Embodiment 2

[0099] The application provides a radar communication simulation system with adaptive deception strategy, which comprises scene construction display control software, and the scene construction display control software specifically comprises:

[0100] A scene configuration module is configured to receive a simulation scene selected by a user, a simulation device, and a frequency set input by the user, configure a scene according to the input frequency set, and configure device parameters and timing instructions of the simulation device.

[0101] A timing processing function block is configured to calculate a signal timing required by the simulation device and generate a global timing according to behaviors and signal characteristics corresponding to the scene configuration.

[0102] A timing conflict adjustment module is configured to detect and adjust the global timing for timing conflict, and obtain a task timing after timing conflict calibration.

[0103] A timing instruction generation module is configured to sequentially issue timing instructions of each simulation device to each simulation device according to the task timing for scene signal output.

[0104] In this embodiment, the system adopts an integrated processing technology of communication signal and radar signal interference, and constructs a radar communication integrated system based on linear frequency modulation (LFM). The system adopts a common hardware device, including a wideband antenna, a transceiver module, a signal processing unit, etc.

[0105] As shown in Figure 5 In addition to the scene construction display control software, the system further comprises a signal processing module, a microwave transceiver subsystem (RF front end), a Beidou timing subsystem, and a secondary power subsystem, etc.

[0106] In the system design, the scene construction display control software is the control center of the whole system, the interface of the system and the user, and the user can complete the scene simulation requirement selection and simulation device configuration through the scene construction display control software. After the software performs time sequence conversion, time sequence conflict detection, time sequence conflict calculation and automatic adjustment on the user's scene information, it converts the simulation device instructions and controls the hardware to complete the corresponding simulation requirements through the UDP communication protocol. The scene construction display control software realizes the control of the whole simulation system.

[0107] The Beidou timing subsystem provides clock signals for the whole simulation device, ensuring the synchronization of each scene task in the scene simulation.

[0108] The secondary power supply provides +12V working power for the signal processing simulation and microwave transceiver subsystems.

[0109] The signal processing module completes the simulation instruction requirement processing issued by the user through the scene construction display control software, realizes the modulation generation and up-conversion processing of the specified signal, sends the intermediate frequency output to the microwave transceiver system through the DAC, and controls the microwave transceiver system switch, attenuator and frequency conversion local oscillator through the serial port to realize the external transmission of various simulation signals.

[0110] After the scene task starts, the host computer sequentially issues scene task control instructions according to the instruction space opened by the signal processing module, which can be sent singly or in packets. This instruction space can ensure that the signal processing module has enough scene tasks. The signal processing module parses and executes each scene task start time in sequence. This design ensures the efficiency and accuracy of the host computer's scene task time sequence processing, and greatly reduces the development time period and resource usage of the lower computer.

[0111] In the integrated system design, the seamless switching and collaborative work of radar and communication functions are realized through the optimization of system architecture design. At the same time, advanced control algorithms are used to realize dynamic allocation and optimization of system resources.

[0112] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. According to the technical essence of the present application, any simple modification, equivalent replacement and improvement of the above embodiment within the spirit and principles of the present application are still within the protection scope of the present application.

Claims

1. A radar communication simulation method with an adaptive deception strategy, characterized in that, Specifically, the following steps are included: S1. Receive the user-selected simulation scenario, simulation device, and input frequency set; configure the scenario based on the input frequency set; the scenario configuration includes configuring the device parameters and timing instructions of the simulation device. S2. Based on the corresponding behavior and signal characteristics of the scenario configuration, calculate the signal timing sequence that the simulation device needs to generate and generate the global timing sequence. Before generating the global timing sequence, conflict detection and adjustment are performed on the initial execution order of the analog signals of a single analog device. The specific process is as follows: S21. For each simulated signal in each scenario task, generate the initial execution order of the simulated signals according to the type of the simulated signal; S22. Check whether the signal characteristics of two adjacent analog signals are the same according to the initial execution order. If they are the same, merge the consecutive analog signals with the same signal characteristics into one analog signal and adjust the start time, end time and execution order of the analog signal to obtain the preliminary adjustment timing. S23. Sequentially check whether there is a time conflict between two adjacent analog signals in the initial timing adjustment; S24. If a time conflict exists, the start and end times of the conflicting analog signal are adjusted again, and the adjusted analog signal is compared with the analog signal of the next initial execution sequence. S3. Perform timing conflict detection and adjustment on the global timing sequence to obtain the task timing sequence after timing conflict calibration; S4. The timing instructions of each analog device are sequentially sent to each analog device according to the task timing to output scene signals.

2. The radar communication simulation method with an adaptive deception strategy according to claim 1, characterized in that, The simulation scenario includes several scenario tasks. Each simulation device in the simulation scenario executes the corresponding scenario task. The signal timing of each simulation device is as follows: To complete the scenario task, the simulation device executes each simulation signal with a start time, end time, and initial execution order. The initial execution order is numbered sequentially. The specific process of the task timing after timing conflict calibration is as follows: S31. Take all analog signals under the same initial execution sequence number as a group of initial timing groups; S32. Adjust the execution order of each analog signal under each initial timing group in sequence according to the timing conflict adjustment rules to obtain the corresponding adjusted timing group; S33. Concatenate each timing adjustment group according to the initial execution order number to obtain the task timing after timing conflict calibration.

3. The radar communication simulation method with an adaptive deception strategy according to claim 2, characterized in that, The specific process for adjusting timing conflicts is as follows: When the priorities of the analog signals in the initial timing group are different, the execution order of the analog signals is adjusted according to the signal characteristics of the analog signals. The signal characteristics of the analog signals include periodic signals and single signals. The priority of the analog signals is: the priority of periodic signals is higher than that of single signals. When a periodic signal and a single signal conflict, the single signal is shifted to the end of the periodic signal. When the analog signals in the initial timing group have the same priority, the execution order of each analog device is adjusted according to the start time of the analog signal.

4. The radar communication simulation method with an adaptive deception strategy according to claim 1, characterized in that, The specific process for adjusting the start and end times of conflicting analog signals is as follows: If a conflict exists, the priority of the signal characteristics of the two analog signals is compared. When the priorities are different, the analog signal with lower priority is placed after the analog signal with higher priority, and the start and end times of the analog signal with lower priority are adjusted. When priorities are the same, the analog signal with a later start time is placed after the analog signal with an earlier start time, and the start and end times of the analog signal with a later start time are adjusted.

5. The radar communication simulation method for an adaptive deception strategy according to claim 1, characterized in that, The types of analog signals include omnidirectional communication analog signals and directional radar analog signals. The signal characteristics of both omnidirectional communication analog signals and directional radar analog signals include periodic signals and single signals. Omnidirectional communication analog signals have a higher priority than directional radar analog signals.

6. The radar communication simulation method for an adaptive deception strategy according to claim 1, characterized in that, The process of calculating the signal timing required by the analog equipment is as follows: Simulate the signals that the simulation device needs to emit when performing scene tasks in a simulated scenario to obtain simulated signals; Calculate the minimum time slice of the analog signal based on the execution time of a single scenario task and the task interval time; The analog signal is sliced ​​according to the minimum time slice to generate the required signal timing sequence for the analog signal.

7. The radar communication simulation method for an adaptive deception strategy according to claim 1, characterized in that, The specific content of step S3 also includes: Based on the timing conflict detection results, the number of simulation devices required in the current simulation scenario is recommended. Users can reselect simulation devices based on the timing conflict detection results or directly enter the number of simulation devices according to the recommended number. When the user makes a new selection, steps S1-S3 are executed again.

8. A radar communication simulation system with an adaptive deception strategy, applied in the radar communication simulation method with an adaptive deception strategy as described in claim 1, characterized in that, This includes scene creation and display control software, which specifically includes: The scenario configuration module is used to receive the simulated scenario, simulated equipment and recorded frequency set selected by the user, and to configure the scenario according to the recorded frequency set. The scenario configuration includes configuring the device parameters and timing instructions of the simulated equipment. The timing processing module is used to calculate the signal timing required by the analog device and generate the global timing based on the corresponding behavior and signal characteristics configured for the scenario. The timing conflict adjustment module is used to detect and adjust timing conflicts in the global timing sequence to obtain the task timing sequence after timing conflict calibration. The timing instruction generation module is used to sequentially send the timing instructions of each analog device to each analog device according to the task timing sequence for scene signal output.

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