A radar simulation method and system oriented to capability reenactment

Abstract

The application relates to the field of radar system modeling, and discloses a radar simulation method and system facing capability reproduction, the system of the method comprising a clock and timing module and a main control module; the clock and timing module is connected with a power range calculation module through the main control module, and is connected with an environment data input module, a detection process simulation module, a detection information output module and a radar display module. The power range calculation module is connected with a directional diagram module through a data cable at one end and is connected with the detection process simulation module through a data cable at the other end. The environment data input module is connected with the detection process simulation module through a data cable, and the detection process simulation module is connected with the detection information output module and the radar display module through data cables. The application can completely reproduce the whole process of radar detection processing, guarantee the simulation fidelity, greatly improve the operation efficiency, guarantee the simulation running speed, and be suitable for the simulation of various types of radar systems.

Description

Technical Field

[0001] This invention relates to the field of radar system modeling, and more specifically to a radar simulation method and system oriented towards capability replay. Background Technology

[0002] Using modern modeling and simulation techniques for radar system research is a very effective technical approach that has been widely applied, covering many aspects such as radar system design and development, development and demonstration of new radar equipment, radar equipment testing, evaluation and assessment, radar counter-operation training, exercises and tactics research.

[0003] Current simulation methods for radar systems mainly include two types: signal-level simulation and functional-level simulation. Signal-level simulation methods offer high fidelity and can reproduce the entire radar workflow and signal processing process, but they involve a large amount of computation and have very low operating efficiency. They are mainly used in radar system design, algorithm verification, and evaluation. Functional-level simulation methods offer lower fidelity and mainly establish a signal-to-noise ratio detection model from a power perspective to reproduce the radar's detection function. Their main advantages are lower computational load and faster operation speed, and they are mainly used in training and exercises for radar countermeasure equipment.

[0004] Signal-level simulation methods for radar systems are computationally inefficient and ill-suited for large-scale equipment training and exercises. Functional-level simulation methods primarily reproduce the radar's target detection capabilities but do not support the replication of the radar's operational processes. Furthermore, they only consider single power information, resulting in low fidelity and poor sensitivity to environmental factors, making them unsuitable for complex electromagnetic environments. As the electromagnetic environment on modern battlefields becomes increasingly complex and the integration of equipment combat systems becomes more sophisticated, neither signal-level nor functional-level simulation methods can meet the training and exercise requirements for large-scale radar countermeasures equipment under integrated combat conditions. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a radar simulation method and system for capability replication. The radar simulation method provided by this invention targets the training and exercise needs of radar and electronic warfare equipment under the conditions of modern battlefield system-of-systems warfare. It can both realistically replicate radar system functions and possess high operational efficiency, ensuring the systematic and coordinated operation of a large number of radar simulation equipment.

[0006] To achieve the objectives of the invention described above, the present invention adopts the following technical solution:

[0007] A radar simulation system for capability replay includes a clock and timing module, a main control module, a radiation pattern module, a power range calculation module, an environmental data input module, a detection process simulation module, a detection information output module, and a radar display module.

[0008] The clock and timing module is connected to the main control module via a data cable and is used to provide the main control module with a reference clock and timing instructions.

[0009] One end of the main control module is connected to the power range calculation module via a data cable, and is used to send pre-calculation instructions to the power range calculation module; the other end of the main control module is connected to the environmental data input module, the detection process simulation module, the detection information output module and the radar display module via data cables, and is used to provide operation control instructions to each module.

[0010] One end of the power range calculation module is connected to the radiation pattern module via a data cable. After the radiation pattern module sends a call command to the radiation pattern module, the radiation pattern module provides radar antenna radiation pattern data to it. The other end of the power range calculation module is connected to the detection process simulation module via a data cable. After the detection process simulation module sends a call command to the power range calculation module, the power range calculation module provides radar power range data to it.

[0011] The environmental data input module is connected to the detection process simulation module via a cable and is used to provide the detection process simulation module with target, clutter and interference data.

[0012] The detection process simulation module is connected to the detection information output module and the radar display module via a data cable, and is used to provide the detection information output module and the radar display module with the radar operating status and detection data.

[0013] A radar simulation system for capability replay includes a clock and timing module that generates clock and timing signals. The clock and timing module ensures that all modules within the system operate synchronously according to a unified clock, or it can be connected to an external clock to achieve clock synchronization with other external systems.

[0014] A radar simulation system for capability replay, wherein the main control module is a module that controls the operation of each module within the system based on a reference clock and timing commands, ensuring that each module executes synchronously according to a predetermined timing relationship, and providing operation control functions such as initialization, start, freeze, unfreeze, and end.

[0015] A radar simulation system for capability replay, wherein the radiation pattern module is an antenna radiation pattern module for simulating radar, used to simulate based on antenna characteristics by using a fitting method or based on measured radiation pattern data.

[0016] A radar simulation system for capability replay includes a power range calculation module that calculates the radar's detection power range against a standard reference target based on radiation pattern data. This module saves computational resources by employing a pre-calculation method. Upon receiving a pre-calculation command from the main controller, it pre-calculates the detection distance for the entire detection area at a certain spatial sampling rate and stores the data as power range data in a prescribed format. During simulation, the simulation module only needs to look up the corresponding data to perform target detection and judgment, thus improving computational efficiency.

[0017] A radar simulation system for capability replay includes an environmental data input module that receives external environmental data or simulates relevant environmental data based on simulation settings. This module generates target echo data, clutter data, and interference data, which are then uniformly transmitted to the detection process simulation module for radar detection processing.

[0018] A radar simulation system for capability replay, wherein the detection process simulation module is a module that simulates the entire working process of radar detection, including simulation of radar working status, radar target detection, point pattern simulation, and trajectory simulation, and generates a detection report according to the radar data rate.

[0019] A radar simulation system for capability replay, wherein the detection information output module is a module that receives radar operating status and detection data sent by the detection process simulation module, and is used to form a data log file and send it to an external system.

[0020] A radar simulation system for capability replay, wherein the radar display module is a simulated radar display that displays the radar operating status and detection data in real time and provides display interfaces for radar A display and B display.

[0021] A radar simulation method oriented towards capability replay is a radar simulation system simulation operation oriented towards capability replay. The main control module generates operation control commands based on the reference clock and timing instructions provided by the clock and timing module. Under the control of the operation commands, the environmental data input module receives environmental data sent from the outside and simulates and generates data such as targets, clutter, and interference according to the simulation settings, and sends them to the detection process simulation module. The detection process simulation module simulates and replays radar processing capabilities such as radar target detection, point generation, and track generation based on pre-calculated power range data. The radar display module and the detection information output module realize the functions of displaying radar working status and outputting radar detection information.

[0022] 1) The radar simulation method transforms target detection into radar range calculation and significantly reduces the computational load in real-time radar target detection through pre-calculation. At the same time, it makes full use of the target's true information to simulate radar tracks, reducing the computational load of track filtering and prediction algorithms. In the radar simulation, the detection process simulation module realizes the capability replay of the entire radar detection process. The capability of the entire radar detection process is described as follows: based on the detection data rate, the radar searches for different targets in its electromagnetic environment. After finding the target, it confirms the target after a set time, establishes target tracking, and generates and outputs the corresponding point trace and track information.

[0023] By operating the detection process simulation module, the radar can fully simulate the radar's working state, target detection, point and track formation capabilities, and generate a detection report according to the actual radar data rate. This allows for a complete reenactment of the entire radar detection process, enabling users of the radar simulation system to have an experience consistent with the operation of actual radar equipment. In other words, the information output through the simulation system interface is consistent with the real equipment, thus achieving a level of realism in radar function simulation comparable to signal-level simulation.

[0024] 2) The operational process of the radar simulation system for capability replay is as follows:

[0025] (1) After the simulation starts, create all simulation modules and initialize them;

[0026] (2) After the simulation initialization is completed, the simulation main control module sends a pre-calculation instruction to the power range calculation module. The power range calculation module calls the radiation pattern module and completes the calculation of the radar detection power range according to the antenna radiation pattern generated by the radiation pattern module.

[0027] (3) After the pre-calculation is completed, the simulation master control module sends a simulation run control command to start the simulation;

[0028] (4) After receiving the simulation operation control command, the environmental data input module begins to read the data transmitted from the external system, including: the target's position, velocity, and target reflection characteristics information. Combined with the simulation parameter settings, it calculates the relevant target, clutter, and interference data as input data for radar detection.

[0029] (5) The detection process simulation module simulates the entire radar target detection process according to the received environmental data and the radar detection data rate, generates a radar detection report, and outputs its working status and detection data.

[0030] (6) The radar display module receives the radar operating status and detection data, and displays the relevant information in a visual way through graphical P display, A display or table interface elements;

[0031] (7) The detection information output module will record the received radar operating status and detection data into a data file and forward it to the external system;

[0032] (8) When the simulation ends, destroy all simulation modules and release simulation resources;

[0033] 3) The detection process simulation module recreates the entire radar detection process, and its operation steps are as follows:

[0034] Step 1: After the detection process simulation block receives environmental data such as targets, clutter, and interference, it generates a target queue to be processed;

[0035] Step 2: Remove targets from the target queue one by one in order and perform detection and processing;

[0036] Step 3: Based on the radar detection data rate and the current target detection status, determine whether the target needs to be processed at the current simulation moment. If no processing is required, return to step 2; if processing is required, continue to step 4.

[0037] Step 4: Calculate the target's range, azimuth, and elevation in the radar polar coordinate system;

[0038] Step 5: Determine whether the target meets the radar line-of-sight condition based on the target distance. If the line of sight is not clear, return to step 2. If the line of sight is clear, continue to the next step.

[0039] Step 6: Based on the target's azimuth and elevation, call the pre-calculated power range data from the power range calculation module to obtain the reference detection distance at the corresponding azimuth and elevation.

[0040] Step 7: Based on the actual reflection characteristics of the target and the relevant environmental clutter and interference data, calculate the actual maximum detection range of the radar for the target based on the reference detection range, and determine whether the radar's target detection conditions are met. If the target distance is greater than the actual maximum detection range, it is determined that the target cannot be detected, and then return to step 3; otherwise, continue to step 8.

[0041] Step 8: Based on the error model of radar measurement, generate error data such as radar ranging, angle measurement, and velocity measurement, and superimpose them onto the real target data to generate radar detection point data;

[0042] Step 9: Generate the corresponding track in advance according to the true value based on the target, and update the corresponding track according to the newly detected point track data to realize the replay of the radar track management function; more realistic simulation of radar track generation and management function, radar capability replay can achieve better simulation effect in a simpler and faster way;

[0043] Step 10: Check the target queue. If there are still targets that have not been processed, return to step 2; otherwise, continue to step 11.

[0044] Step 11: Based on the current simulation time and the point data and track data generated by the radar for all target detections, determine the working status of the radar at the current simulation time, including search status and tracking status;

[0045] Step 12: Output radar operating status and all detection data.

[0046] Due to the adoption of the technical solution described above, the present invention has the following advantages:

[0047] This invention targets the simulation needs of radar systems under current integrated radar electronic warfare equipment training and exercises. Addressing the shortcomings of existing signal-level and functional-level simulation methods, it proposes a radar system simulation method oriented towards capability replication. This method, through pre-calculation of radar range and simulation of radar tracks using target ground truth information, not only significantly improves computational efficiency and ensures simulation speed, but also completely reproduces the entire radar detection and processing process, guaranteeing simulation realism. Furthermore, this simulation method is simple in structure, highly versatile, and adaptable to the simulation of various types of radar systems. The simulation system is also easy to implement, has low development costs, and a short construction cycle, demonstrating excellent application prospects. Attached Figure Description

[0048] Figure 1 It is a block diagram of the system's components;

[0049] Figure 2 It is a flowchart of the system's operation;

[0050] Figure 3 This is the operation flowchart of the radar detection process simulation module;

[0051] Figure 4 This is the display interface for the radar simulation system. Detailed Implementation

[0052] Specific embodiments of the present invention are described below to enable those skilled in the art to better understand the invention. It should be particularly noted that in the following description, detailed descriptions of known functions and designs that might obscure the scope of the invention will be omitted.

[0053] like Figure 1 , 2As shown in Figures 3 and 4, a radar simulation system for capability replay includes a clock and timing module, a main control module, a radiation pattern module, a range calculation module, an environmental data input module, a detection process simulation module, a detection information output module, and a radar display module. The clock and timing module is connected to the main control module via a data cable, providing a reference clock and timing commands. One end of the main control module is connected to the range calculation module via a data cable, sending pre-calculation commands to the range calculation module. The other end of the main control module is connected to the environmental data input module, the detection process simulation module, the detection information output module, and the radar display module via data cables, providing operational control commands to each module. One end of the range calculation module is connected to the radiation pattern module via a data cable, providing radar antenna radiation pattern data to the radiation pattern module after sending a call command. The other end of the range calculation module is connected to the detection process simulation module via a data cable, providing radar range data to the detection process simulation module after sending a call command.

[0054] Figure 1 This is a block diagram of the radar simulation system for capability replay described in this invention. The system components include a clock and timing module, a main control module, a radiation pattern module, a power range calculation module, an environmental data input module, a detection process simulation module, a detection information output module, and a radar display module.

[0055] The connections between the system components are as follows: the clock and timing module is connected to the main control module, providing a reference clock and timing commands; the main control module is connected to the power range calculation module, sending pre-calculation commands to it; the main control module is connected to the environmental data input module, the detection process simulation module, the detection information output module, and the radar display module, providing operational control commands to each module; the power range calculation module is interconnected with the radiation pattern module, sending a call command to it, which then provides radar antenna radiation pattern data; the environmental data input module is connected to the detection process simulation module, providing target, clutter, and interference data; the detection process simulation module is interconnected with the power range calculation module, sending a call command to it, which then provides radar power range data; the detection process simulation module is connected to the detection information output module and the radar display module, providing these two modules with radar operating status and detection data.

[0056] The clock and timing module generates clock and timing signals. Through the clock and timing module, it is possible to ensure that all modules inside the system proceed synchronously according to a unified clock, and it can also be connected to an external clock to achieve clock synchronization with other external systems.

[0057] The main control module uses a reference clock and timing instructions to control the operation of each module within the system, ensuring that each module executes synchronously according to a predetermined timing relationship, and provides operation control functions such as initialization, start, freeze, unfreeze, and end.

[0058] The radiation pattern module is used to simulate the antenna radiation pattern of a radar. It can be simulated by fitting the antenna characteristics or by simulating the radiation pattern based on measured data.

[0059] The power range calculation module calculates the radar's detection range against a standard reference target based on radiation pattern data. To save computational resources, a pre-calculation method is adopted. That is, after receiving the pre-calculation instruction from the main control, the detection distance of the entire detection area is pre-calculated according to a certain spatial sampling rate and stored as power range data in a certain format. During simulation operation, the detection process simulation module only needs to look up the corresponding data to perform target detection and judgment, which can greatly improve the computational efficiency.

[0060] The environmental data input module receives external environmental data or simulates relevant environmental data according to simulation settings, generates target echo data, clutter data, and interference data, and then transmits them to the detection process simulation module for radar detection processing.

[0061] The detection process simulation module is used to simulate the entire working process of radar detection, including radar working status simulation, radar target detection, point simulation, and trajectory simulation, and generates a detection report according to the radar data rate.

[0062] The detection information output module receives the radar operating status and detection data sent by the detection process simulation module, forms a data log file, and can send it to an external system.

[0063] The radar display module is used to simulate a radar display, which displays the radar's operating status and detection data in real time. It can provide display interfaces such as radar A display and B display.

[0064] During the simulation, the main control module generates operation control commands based on the reference clock and timing instructions provided by the clock and timing module. Under the control of the operation commands, the environmental data input module receives environmental data sent from the outside and, according to the simulation settings, simulates and generates data such as targets, clutter, and interference, which are then sent to the detection process simulation module. Based on the pre-calculated power range data, the detection process simulation module simulates and recreates radar processing capabilities such as radar target detection, spot generation, and track generation. It also realizes functions such as displaying radar operating status and outputting radar detection information through the radar display module and the detection information output module.

[0065] In the radar simulation method provided by this invention, the radar sampling signal is not directly simulated, nor is the target detection performed entirely according to the radar signal processing procedure. Instead, the target detection is transformed into radar power range calculation, and the computational load in real-time radar target detection is significantly reduced through pre-calculation. At the same time, the radar trajectory simulation is fully utilized to reduce the computational load of trajectory filtering, prediction and other algorithms, thereby improving the operating efficiency of the radar data processing part. By combining the above optimization methods, the radar simulation system implemented using this method can achieve the operating efficiency of traditional functional-level simulation.

[0066] In the radar simulation method provided by this invention, the detection process simulation module enables the full simulation of the radar detection process. The full radar detection process can be described as follows: under a certain detection data rate, the radar searches for different targets in its electromagnetic environment; after finding a target, it confirms the target after a certain period of time, establishes target tracking, and generates and outputs corresponding point and track information. Through the design of the detection process simulation module in this invention, the radar's operating state, target detection, point and track formation capabilities can be simulated entirely according to the actual radar equipment's detection capabilities. A detection report is generated according to the radar's actual data rate, achieving a complete simulation of the entire radar detection process. This allows users of the radar simulation system to obtain an experience consistent with actual radar equipment operation; that is, the information output through the simulation system interface matches the real equipment, thus achieving a level of realism in radar function simulation comparable to signal-level simulation. Figure 4 The image shows the operating interface of a radar simulation system developed based on the radar simulation method provided by this invention, which can output relevant information exactly according to the actual equipment functions.

[0067] Figure 2 This is a flowchart illustrating the operation of the radar simulation system for capability replay described in this invention.

[0068] After the simulation starts, all simulation modules are created and initialized.

[0069] After the simulation initialization is completed, the simulation main control module sends a pre-calculation instruction to the power range calculation module. The power range calculation module calls the radiation pattern module and completes the calculation of the radar detection power range based on the antenna radiation pattern generated by the radiation pattern module.

[0070] After the pre-calculation is completed, the simulation master control module sends a simulation run control command to start the simulation.

[0071] After receiving the simulation operation control command, the environmental data input module begins to read data from the external system, such as the target's position, velocity, and target reflection characteristics. Combined with the simulation parameter settings, it calculates relevant target, clutter, and interference data as input data for radar detection.

[0072] The detection process simulation module simulates the entire radar target detection process based on the received environmental data and the radar's detection data rate, generates a radar detection report, and outputs its working status and detection data.

[0073] The radar display module receives the radar's operating status and detection data, and presents the relevant information in a visual manner through graphical interface elements such as P-display, A-display, or tables.

[0074] The detection information output module records the received radar operating status and detection data into a data file and forwards it to the external system.

[0075] When the simulation ends, all simulation modules are destroyed and simulation resources are released.

[0076] In the operation flow of the radar simulation system for capability replay described in this invention, the most important part is the detection process simulation module's capability replay of the entire radar detection process. The operation flow of this module will be further explained below.

[0077] Figure 3 The diagram shows the operation flowchart of the radar detection process simulation module. Its main steps are as follows:

[0078] Step 1: After the detection process simulation block receives environmental data such as targets, clutter, and interference, it generates a target queue to be processed.

[0079] Step 2: Remove targets from the target queue one by one in order and perform detection and processing;

[0080] Step 3: Based on the radar detection data rate and the current target detection status, determine whether the target needs to be processed at the current simulation moment. If no processing is required, return to step 2. If processing is required, continue to step 4.

[0081] Step 4: Calculate the target's range, azimuth, and elevation in the radar polar coordinate system.

[0082] Step 5: Determine whether the target meets the radar line-of-sight condition based on the target distance. If the line of sight is not clear, return to step 2. If the line of sight is clear, continue to step 6.

[0083] Step 6: Based on the target's azimuth and elevation, call the pre-calculated power range data from the power range calculation module to obtain the reference detection distance at the corresponding azimuth and elevation.

[0084] Step 7: Based on the target's actual reflection characteristics and relevant environmental clutter and interference data, calculate the radar's actual maximum detection range for the target using the reference detection range, and determine whether the radar's target detection conditions are met. If the target distance is greater than the actual maximum detection range, it is determined that the target cannot be detected, and the process returns to Step 3; otherwise, proceed to Step 8. In this step, compared to the traditional method of calculating the signal-to-noise ratio based on radar equations before target detection, a significant amount of computation can be saved, greatly improving computational efficiency.

[0085] Step 8: Based on the error model of radar measurement, generate error data such as radar ranging, angle measurement, and velocity measurement, and superimpose them onto the real target data to generate radar detection point data.

[0086] Step 9: Based on the target, generate the corresponding track in advance according to the true value, and update the track according to the newly detected point track data to realize the simulation of radar track management function. In this step, compared with the traditional radar track function simulation method, more real information of the target is utilized, avoiding a lot of correlation, filtering and other calculations, but it can simulate the radar track generation and management function more realistically. From the perspective of radar capability simulation, it can achieve better simulation effect in a simpler and faster way.

[0087] Step 10: Check the target queue. If there are still targets that have not been processed, return to step 2; otherwise, continue to step 11.

[0088] Step 11: Based on the current simulation time and the point and track data generated by the radar for all target detections, determine the current working state of the radar, such as search state or tracking state.

[0089] Step 12: Output radar operating status and all detection data.

[0090] Although the illustrative specific embodiments of the present invention have been described above to enable those skilled in the art to understand the invention, it should be understood that the invention is not limited to the scope of the specific embodiments. For those skilled in the art, various changes are obvious as long as they are within the spirit and scope of the invention as defined and determined by the appended claims, and all inventions utilizing the concept of the present invention are protected.

Claims

1. A radar simulation system for capability replay, characterized by: The system includes a clock and timing module, a main control module, a radiation pattern module, a power range calculation module, an environmental data input module, a detection process simulation module, a detection information output module, and a radar display module. The clock and timing module is connected to the main control module via a data cable, providing a reference clock and timing commands. One end of the main control module is connected to the power range calculation module via a data cable, sending pre-calculation commands to it. The other end of the main control module is connected to the environmental data input module, the detection process simulation module, the detection information output module, and the radar display module via data cables, providing operational control commands to each module. One end of the power range calculation module is connected to the radiation pattern module via a data cable. The modules are interconnected. The radiation pattern module sends a call command to the radiation pattern module, which then provides radar antenna radiation pattern data. The other end of the power range calculation module is connected to the detection process simulation module via a data cable. This allows the power range calculation module to provide radar power range data after the detection process simulation module sends a call command. The environmental data input module is connected to the detection process simulation module via a data cable, providing target, clutter, and interference data. The detection process simulation module is connected to the detection information output module and the radar display module via a data cable, providing them with radar operating status and detection data.

2. The radar simulation system for capability replay according to claim 1, characterized in that: The clock and timing module generates clock and timing signals. Through the clock and timing module, the various modules inside the system are synchronized according to a unified clock, or connected to an external clock to achieve clock synchronization with other external systems.

3. The radar simulation system for capability replay according to claim 1, characterized in that: The main control module is a module that controls the operation of each module within the system based on a reference clock and timing instructions. It ensures that each module executes synchronously according to a predetermined timing relationship and provides operation control functions such as initialization, start, freeze, unfreeze, and end.

4. A radar simulation system for capability replay according to claim 1, characterized in that: The radiation pattern module is an antenna radiation pattern module for simulating radar, used to simulate antenna characteristics by using a fitting method or by simulating based on measured radiation pattern data.

5. A radar simulation system for capability replay according to claim 1, characterized in that: The power range calculation module is a radar detection power range module for standard reference targets based on radiation pattern data. It is used to save computing resources and adopts a pre-calculation method. That is, after receiving the pre-calculation instruction from the main control, the detection distance of the entire detection area is pre-calculated according to a certain spatial sampling rate and stored as power range data in a specified format. During simulation operation, the detection process simulation module only needs to look up the corresponding data to perform target detection and judgment, which can improve the computing efficiency.

6. A radar simulation system for capability replay according to claim 1, characterized in that: The environmental data input module receives external environmental data or simulates relevant environmental data according to simulation settings. It is used to generate target echo data, clutter data, and interference data, which are then uniformly transmitted to the detection process simulation module for radar detection processing.

7. A radar simulation system for capability replay according to claim 1, characterized in that: The detection process simulation module simulates the entire working process of radar detection, including simulation of radar working status, radar target detection, point simulation, and trajectory simulation, and generates a detection report according to the radar's data rate.

8. A radar simulation system for capability replay according to claim 1, characterized in that: The detection information output module is a module that receives radar operating status and detection data sent by the detection process simulation module, and is used to form a data log file and send it to an external system.

9. A radar simulation system for capability replay according to claim 1, characterized in that: The radar display module is used to simulate a radar display, displaying the radar's operating status and detection data in real time, and providing display interfaces for radar A display and B display.

10. The radar simulation method for a radar simulation system oriented towards capability replay as described in claim 1, characterized in that: The main control module generates operation control commands based on the reference clock and timing instructions provided by the clock and timing module. Under the control of the operation commands, the environmental data input module receives environmental data sent from the outside and simulates and generates target, clutter, and interference data according to the simulation settings, and sends them to the detection process simulation module. The detection process simulation module simulates and re-enacts the radar target detection, spot generation, and track generation radar processing capabilities based on the pre-calculated power range data. It also realizes the radar working status display and radar detection information output functions through the radar display module and the detection information output module. 1) The radar simulation method transforms target detection into radar range calculation and significantly reduces the computational load in real-time radar target detection through pre-calculation. At the same time, it makes full use of the target's true information to simulate radar tracks, reducing the computational load of track filtering and prediction algorithms. In the radar simulation, the detection process simulation module realizes the capability replay of the entire radar detection process. The capability of the entire radar detection process is described as follows: based on the detection data rate, the radar searches for different targets in its electromagnetic environment. After finding the target, it confirms the target after a set time, establishes target tracking, and generates and outputs the corresponding point trace and track information. By operating the detection process simulation module, the radar can fully simulate the radar's working state, target detection, point and track formation capabilities, and generate a detection report according to the actual radar data rate. This allows for a complete reenactment of the entire radar detection process, enabling users of the radar simulation system to have an experience consistent with the operation of actual radar equipment. In other words, the information output through the simulation system interface is consistent with the real equipment, thus achieving a level of realism in radar function simulation comparable to signal-level simulation. 2) The operational process of the radar simulation system for capability replay is as follows: (1) After the simulation starts, create all simulation modules and initialize them; (2) After the simulation initialization is completed, the simulation main control module sends a pre-calculation instruction to the power range calculation module. The power range calculation module calls the radiation pattern module and completes the calculation of the radar detection power range according to the antenna radiation pattern generated by the radiation pattern module. (3) After the pre-calculation is completed, the simulation master control module sends a simulation run control command to start the simulation; (4) After receiving the simulation operation control command, the environmental data input module begins to read the data transmitted from the external system, including: the target's position, velocity, and target reflection characteristics information. Combined with the simulation parameter settings, it calculates the relevant target, clutter, and interference data as input data for radar detection. (5) The detection process simulation module simulates the entire radar target detection process according to the received environmental data and the radar detection data rate, generates a radar detection report, and outputs its working status and detection data. (6) The radar display module receives the radar operating status and detection data, and displays the relevant information in a visual way through graphical P display, A display or table interface elements; (7) The detection information output module will record the received radar operating status and detection data into a data file and forward it to the external system; (8) When the simulation ends, destroy all simulation modules and release simulation resources; 3) The detection process simulation module recreates the entire radar detection process, and its operation steps are as follows: Step 1: After the detection process simulation block receives the target, clutter, and interference environment data, it generates a target queue to be processed; Step 2: Remove targets from the target queue one by one in order and perform detection and processing; Step 3: Based on the radar detection data rate and the current target detection status, determine whether the target needs to be processed at the current simulation moment. If no processing is required, return to step 2; if processing is required, continue to step 4. Step 4: Calculate the target's range, azimuth, and elevation in the radar polar coordinate system; Step 5: Determine whether the target meets the radar line-of-sight condition based on the target distance. If the line of sight is not clear, return to step 2. If the line of sight is clear, continue to the next step. Step 6: Based on the target's azimuth and elevation, call the pre-calculated power range data from the power range calculation module to obtain the reference detection distance at the corresponding azimuth and elevation. Step 7: Based on the actual reflection characteristics of the target and the relevant environmental clutter and interference data, calculate the actual maximum detection range of the radar for the target based on the reference detection range, and determine whether the radar's target detection conditions are met. If the target distance is greater than the actual maximum detection range, it is determined that the target cannot be detected, and then return to step 3; otherwise, continue to step 8. Step 8: Based on the radar measurement error model, generate radar ranging, angle measurement, and velocity measurement error data, and superimpose them onto the target's actual data to generate radar-detected point data; Step 9: Generate the corresponding track in advance according to the true value based on the target, and update the corresponding track according to the newly detected point track data to realize the replay of the radar track management function; more realistic simulation of radar track generation and management function, radar capability replay can achieve better simulation effect in a simpler and faster way; Step 10: Check the target queue. If there are still targets that have not been processed, return to step 2; otherwise, continue to step 11. Step 11: Based on the current simulation time and the point data and track data generated by the radar for all target detections, determine the working status of the radar at the current simulation time, including search status and tracking status; Step 12: Output radar operating status and all detection data.

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