A radiation signal editing, monitoring and testing system
Through the combined design of the system simulation module, real-time control module and FPGA module, the multifunctional and universal problems of the existing system are solved, the editing and loading of multiple types of signals is realized, and online and offline data analysis is supported, the equipment complexity is reduced, and it is suitable for simulation of multiple signal parameter ranges.
Patent Information
- Application Number
- CN202111140202.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-09-28
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2041-09-28
AI Technical Summary
The existing radiation signal editing, monitoring and testing systems lack multifunctional and integrated design, cannot adapt to multiple signal parameter ranges, hardware equipment is complex, software design is not versatile, and cannot integrate editing, detection and testing functions.
The combined design of the system simulation module, real-time control module and FPGA module is adopted to realize signal editing, monitoring and testing systems, support multi-class signal editing and loading in the 0.4-40GHz frequency band, and the modular design reduces the complexity of the equipment.
It realizes online or offline signal style editing of users, supports multi-function signal simulator equipment panel or remote computer control, has real-time and post-event data analysis capabilities, meets the signal simulation needs of current and future equipment, reduces equipment complexity and improves operation and maintenance performance.
Smart Images

Figure CN113960544B_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of airborne electronic countermeasure engineering applications, and particularly relates to a radiation signal editing, monitoring and testing system. Background Art
[0002] With the increasing complexity and variety of electronic devices such as radars, the requirements for editing, loading, monitoring and testing of radiation signals in experiments are increasing, and the requirements for system multi-functionality and integration are getting higher and higher.
[0003] Currently, the system design solutions for requirements such as radiation signal editing, monitoring and testing usually have specific restrictions on the environment, and are only applicable to completing a single function, without the characteristics of multi-functionality and integration. Moreover, the signal parameter range is narrow, without universality, the simulation research cost is high, and there is a lack of an integrated design that integrates the functions of radiation signal editing, detection and testing, specifically manifested as: the hardware equipment is complex and often consists of multiple combined parts; in addition, the software design is only applicable to the radiation signals of a certain type of radar and cannot be applied to other radar devices. Summary of the Invention
[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a radiation signal editing, monitoring and testing system.
[0005] To achieve the above purpose, the technical solution adopted by the present invention is:
[0006] A radiation signal editing, monitoring and testing system, comprising:
[0007] A system simulation module, used to implement functions such as initialization of the system simulation module, setting of test scenarios, control of test processes, display of test postures and data, and recording and processing of test data;
[0008] A real-time control module, used to receive real-time simulation data sent by the system simulation module, forward it in real time to the corresponding functional components, and send the feedback data of each functional component to the system control computer to achieve monitoring and subsequent data processing;
[0009] An FPGA module, used to receive the data sent by the real-time control module, generate radar signals, target simulation signals, clutter signals, interference signals and basic waveform signals, and at the same time load the generated signals to a multi-functional signal simulator to generate corresponding radiation signals.
[0010] Preferably, the system simulation module runs on the system control computer of the multi-functional simulator. The system control computer selects a server with the Windows XP operating system, and integrates a peripheral interface, 2 network ports and 2 VGA video interfaces.
[0011] Preferably, network port 0 is used for the communication between the system simulation module and the real-time control computer. The system simulation module generates a simulation model and control data for each component according to user settings, and sends the control data to the real-time control computer through network port 0. Then, the control computer forwards the data to the corresponding functional components. At the same time, the feedback data of each functional component is sent back to the system control computer through the real-time control computer to achieve monitoring and subsequent data processing.
[0012] Preferably, network port 1 is used to realize the communication between the system control computer and the remote control computer. The remote control computer can remotely download the track data of the target and the missile trajectory data to the system control computer to realize the remote control of the simulator. At the same time, the waveform data of the simulator can also be sent back to the remote control computer to realize remote detection.
[0013] Preferably, the system simulation module includes:
[0014] An initialization component, which is used to make the multi-functional simulator enter the normal working state after the system is powered on, run the initialization program when the system is powered on or reset, initialize the network interface, the initial connection of the database, the initialization of the interface display, and the initial USB serial port, and is used to set the system simulation module to the default working state and set each parameter to the initial value;
[0015] A test scenario setting component, which is used to realize the working state selection of the multi-functional simulator, the input of test parameters, the selection of calculation models, and the function of model simulation confirmation;
[0016] A test process control component, which is used to control the test beat, promote the test process, and display the situation and data in real time during the test process according to the parameters of the scenario setting file and the operations of the operators;
[0017] A test situation and data display component, which is used to display the process and various data of the experiment in real time when the multi-functional simulator is working;
[0018] A test data recording and processing component, which is used to realize various states and control parameters generated by the system control computer and equipment during the system test process, and provide a basis for post-event analysis and test result evaluation.
[0019] Preferably, the FPGA module includes a pulse frequency division counter, a phase accumulator, and a waveform memory, and the pulse frequency division counter, the phase accumulator, and the waveform memory are connected in sequence.
[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0021] (1)The radiation signal editing, monitoring and testing system provided by the present invention is used to enable users to edit radiation signal patterns online or offline; support users to edit radiation signal patterns on the device panel of the multifunctional integrated signal simulator or on a remote computer, and load and control them through the network port; and can edit and analyze the recorded data of the monitored radiation signals in real time or afterwards.
[0022] (2)The radiation signal editing, monitoring and testing system provided by the present invention can edit and load various types of radar signals, target simulation signals, clutter signals, interference signals and basic waveform signals in the frequency band of 0.4 - 40 GHz, and at the same time load the generated signals to the multifunctional signal simulator to generate corresponding radiation signals.
[0023] (3)The present invention reduces the complexity of the device combination structure through modular and integrated design, and improves the technical index requirements, operation and maintenance performance of the radiation signal editing, monitoring and testing technology.
[0024] (4)The present invention is an important part of the radio frequency stealth and anti-stealth system, and is a necessary way to achieve interconnection and interoperability and evaluate the stealth and anti-stealth performance among the devices of the system. Moreover, the signal form parameters generated by the present invention can meet the simulation of the radio frequency radiation signals of current and future new models of equipment, and the design of time-domain modulation parameters can also meet the simulation requirements of current and future new models of equipment. Completing the simulation of signal generation for various types of equipment in the laboratory environment has very important practical significance. Description of the Drawings
[0025] Figure 1 is the structural diagram of the radiation signal editing, monitoring and testing system provided by the embodiment of the present invention;
[0026] Figure 2 is the operation flow chart of the radiation signal editing, monitoring and testing system provided by the embodiment of the present invention in the whole system;
[0027] Figure 3 is the basic state diagram of the radiation signal editing, monitoring and testing system provided by the embodiment of the present invention during operation;
[0028] Figure 4 is the block diagram of the multifunctional simulator system;
[0029] Figure 5 is the block diagram of the system control computer;
[0030] Figure 6 is the functional structure diagram of the system simulation software;
[0031] Figure 7 is the flow chart of the initialization component;
[0032] Figure 8It is the background image of the monitoring display interface;
[0033] Figure 9 It is the data flow diagram of the system simulation software;
[0034] Figure 10 It is the external interface diagram of the system simulation software;
[0035] Figure 11 It is the schematic diagram of the internal interface of the system simulation software. Detailed implementation manners
[0036] Hereinafter, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be completely conveyed to those skilled in the art.
[0037] As Figure 4 shown, the radiation signal editing, monitoring and testing system (software) provided by the embodiment of the present invention specifically includes:
[0038] A system simulation module (software), which is used to implement functions such as initialization of the system simulation module, setting of test scenarios, control of test processes, display of test situations and data, and recording and processing of test data;
[0039] A real-time control module, which is used to receive real-time simulation data sent by the system simulation module, forward it in real time to the corresponding functional components, and send the feedback data of each functional component to the system control computer to implement monitoring and subsequent data processing;
[0040] An FPGA module, which is used to receive data sent by the real-time control module, generate radar signals, target simulation signals, clutter signals, interference signals and basic waveform signals, and at the same time load the generated signals to a multi-functional signal simulator to generate corresponding radiation signals. The FPGA module includes a pulse frequency division counter, a phase accumulator and a waveform memory, and the pulse frequency division counter, the phase accumulator and the waveform memory are connected in sequence.
[0041] They coordinate to complete all functions of the multi-functional simulator system based on their respective hardware and software platforms.
[0042] As Figure 1 shown, the radiation signal editing, monitoring and testing system provided by the embodiment of the present invention, according to specific operation and use, includes:
[0043] A signal editing module, which is used to edit signal styles, modulation methods, radiation parameters, etc. of the multi-functional signal simulator;
[0044] A signal remote loading module, which is used to load the edited signal to the multi-functional signal simulator;
[0045] A signal monitoring, analyzing and recording module, which monitors and analyzes the working state of the multi-functional simulator or other standard devices and records the required data.
[0046] After the radiation signal editing, monitoring and testing system (software) provided by the embodiments of the present invention is developed, it is installed and run in Windows XP, and is responsible for completing the radiation signal style editing by users online or offline; it supports users to edit the radiation signal style on the device panel of the multi-functional integrated signal simulator or on a remote computer, and performs loading and control through the network port; it can edit and analyze the recorded data of the monitored radiation signal in real time or afterwards, etc.
[0047] The operation flow chart of the radiation signal editing, monitoring and testing system (software) provided by the present invention is as Figure 2 shown, and it is in the core position in the radiation signal generation part of the airborne radio frequency countermeasure simulation verification system. The radio frequency control database and the simulation control software transmit the radio frequency control strategy to the radiation signal editing, monitoring and testing software. The radiation signal editing, monitoring and testing software edits the signal style, modulation mode and various radiation parameters of the radiation signal according to the radio frequency control strategy, or directly calls the pre-edited radiation signal. At the same time, the edited radiation signal is loaded to the multi-functional signal simulator to complete the editing and loading of the radiation signal; the multi-functional signal simulator feeds back the output signal to the radiation signal editing, monitoring and testing software in real time, and the radiation signal editing, monitoring and testing software can monitor the output of the multi-functional signal simulator in real time or afterwards; the radiation signal editing, monitoring and testing software is scalable, and a general data interface is reserved to support secondary development. Among them, the multi-functional signal simulator, amplifier / attenuator, programmable broadband intercept receiver, general instruments of the 41st Institute and Test-center3.6, and the radio frequency control data and simulation control software are all commercially available.
[0048] The radiation signal editing, monitoring and testing system (software) edits the signal style, modulation mode and various parameters of the radiation signal according to the control strategy output by the radio frequency control database and the simulation control software, or directly calls the pre-edited radiation signal. The radiation signal editing, monitoring and testing software supports loading and control through the network port, and loads the edited radiation signal to the multi-functional signal simulator.
[0049] The radiated signal editing, monitoring, and testing system (software) is capable of editing various radar signals, target echo signals, battlefield environment (clutter, etc.), and jamming signals within the 0.4-40 GHz frequency band. Signal types include single pulse, linear frequency modulation, phase-coded, PD, continuous wave, friend-or-foe identification, control commands, ground clutter, weather clutter, passive chaff cloud interference, noise frequency modulation (FM) jamming (including blocking and aiming noise), function-sweep noise jamming, intermittent noise jamming, random pulse jamming, noise frequency modulation + sweep frequency combined jamming, and drag jamming.
[0050] After startup, the radiation signal editing, monitoring, and testing system (software) enters a power-on self-test state, performs a system function self-test, initializes parameters, and enters a standby state. Three operating modes are available: one requires selecting the type of radiation signal on the interface and entering various parameters for that signal; the second mode loads a file, which contains waveform data stored in a given format, and the waveform data can be any type of radiation signal; the third mode uses a pre-stored radiation signal. If you want to modify the radiation signal, you can select Edit and store the edited radiation signal data, and you can directly call this mode next time.
[0051] The basic state diagram of the radiation signal editing, monitoring and testing system (software) during operation is as follows: Figure 3 As shown:
[0052] In the Standby state, if you select Configuration mode, you will enter the Configuration Mode interface, where you can select the radiation signal type and input parameters. The software supports the following radiation signal types: CW, single pulse, linear frequency modulation, phase coded, ASK, and FSK. The required parameters for each radiation signal are listed below. To select a different mode, simply return to the Standby state.
[0053] In the preset mode, the software can preset 4 radiation signal modes, which can be increased as needed. Without exiting the preset mode, you can switch between the 4 radiation signals at will, but only one radiation signal can be selected at a time.
[0054] The software design should also reserve a control interface for receiving remote computers through the network, and the control parameters should be the same as the local configuration mode.
[0055] The Radiation Signal Editing, Monitoring, and Testing Software features real-time and post-event monitoring of the Multi-Function Signal Simulator's output signal. The Multi-Function Signal Simulator's output signal is fed back to the software in real time. The software then compares the Multi-Function Signal Simulator's output signal with the edited and loaded signal in real time and post-event, forming a closed loop to verify the accuracy of the Multi-Function Signal Simulator's output signal.
[0056] The radiation signal editing, monitoring and testing software has the ability to cross-link with Test-center 3.6 software in real time. It can not only test the signals output by the multi-functional signal simulator online or offline, but also control general instrument equipment to achieve instrument control. It can realize online or offline testing of customized instruments and general instruments.
[0057] Such as Figure 5 shown, the system simulation module runs on the system control computer of the multi-functional simulator. The system control computer selects a server with the Windows XP operating system, and integrates a peripheral interface, 2 network ports and 2 VGA video interfaces.
[0058] Among them, network port 0 is used for communication between the system simulation module and the real-time control computer. The system simulation module generates a simulation model and control data for each component according to user settings, and sends the control data to the real-time control computer through network port 0. The control computer forwards it to the corresponding functional components. At the same time, the feedback data of each functional component is sent back to the system control computer through the real-time control computer to realize monitoring and subsequent data processing. Network port 1 is used to realize communication between the system control computer and the remote control computer. The remote control computer can remotely download the track data of the target and the missile trajectory data to the system control computer to realize remote control of the simulator. At the same time, various data such as the waveform of the simulator can also be sent back to the remote control computer to realize remote detection.
[0059] Such as Figure 6 shown, the system simulation module (software) mainly realizes functions such as initialization of the system simulation software, setting of the test scenario, control of the test process, display of the test situation and data, recording and processing of test data, etc. It is the main control software of the test. Each function is completed by an independent component, including: <http: / / www.doczj.com / doc /
[0060] The initialization component is used to make the multi-functional simulator enter the normal working state after the system is powered on. It runs the initialization program when the power is turned on or reset, initializes the network interface, initial connection of the database, initialization of the interface display, initial of the USB serial port, and is used to set the system simulation module to the default working state, set each parameter to the initial value. After the system completes the initialization, the system simulation module sends a self-check command to each component of the simulator. Each component completes the self-check according to the established self-check program and sends the monitoring word back to the simulation module. The simulation module displays the status of each component in the main display area of the interface. The specific flowchart of the initialization component is as Figure 7 shown.
[0061] The system divides the main display window into three sub-windows. One of the sub-windows is used to realize the test scenario setting, and its specific form is an object of a window-derived class:
[0062] class ParaSetWindow : public Cview。
[0063] The test scenario setting component is used to implement the working state selection, test parameter input, calculation model selection of the multi-functional simulator, and perform the model simulation confirmation function, including the working mode and parameter setting of the simulator system, target simulation and waveform generation parameter setting, missile simulation parameter setting, interference simulation parameter setting, clutter simulation parameter setting. After the parameters are set, the system generates simulation data according to the settings, including generating target, missile, and deception interference track data; generating various target waveform data; generating interference model data; generating clutter model data, and completing the function of convolving clutter data with the target waveform. According to different working states, the test scenario setting component consists of 5 sub-components, and each sub-component consists of a dialog box and an object derived from the dialog box class: target simulation parameter setting component, interference simulation parameter setting component, clutter simulation parameter setting component, missile simulation parameter setting component, and waveform generation parameter setting component.
[0064] The test process control component is used to control the test rhythm, advance the test process according to the parameters of the scenario setting file and the operations of the operator, and perform real-time display of the situation and data during the test process. According to different settings of the system, the test process control component should include 6 sub-components: target simulation process control sub-component, waveform generation process control sub-component, interference simulation process control sub-component, clutter simulation process control sub-component, missile simulation process control sub-component, and external data reception process control sub-component;
[0065] The test situation and data display component is used to display the test process and various data in real time when the multi-functional simulator is working, including: target, missile, deception interference track display, target waveform display, clutter display, interference display, and monitoring status display. The system simulation software uses a sub-window of the main display window as the test situation and data display window, and its software form is a subclass derived from the window view class: class ProcShowWindow : public Cview. To save the resources of the main control computer, the system simulation software splits the test situation and data display process into two parts: background display and data display. The background display and data display need to be superimposed to form a complete interface. The background display can display 5 types of backgrounds:
[0066] P-type display background, waveform display background (including time domain display and frequency domain display), system monitoring display background, system control display background, and data processing display background, where the system monitoring display background is as Figure 8 shown.
[0067] The data display part is divided into 4 sub-display components according to the working type, including the target simulation data display component, the interference simulation data display component, the clutter simulation data display component, and the system monitoring data display component.
[0068] The test data recording and processing component is used to record various states and control parameters generated by the system control computer and equipment during the system test process, providing a basis for post-event analysis and test result evaluation. The recorded data includes: radar transmission waveform, radar uplink command data, clutter data, etc. The requirement for the recorded data is to record all system states and control parameters related to control, and have a time stamp synchronization flag with absolute time. The time synchronization is achieved using the GPS or Beidou system. The data is recorded and stored in the hard disk of the simulation module in the form of files. The recorded data includes: radar transmission waveform, radar uplink command data, clutter data, etc. The system simulation module should be able to analyze the recorded target waveform data, as well as the target signals, clutter signals, and interference signals generated autonomously, including FFT analysis component, MTI analysis component, MTD analysis component, pulse compression analysis component, CFAR analysis component, and point track correlation analysis component.
[0069] The system simulation is implemented using the object-oriented MFC tool, mainly divided into two parts: the background data processing part and the human-computer interaction interface. On the one hand, whenever there is an operation command on the human-computer interaction interface, the corresponding background data processing component will be called for data processing, and the corresponding update display will be made on the human-computer interaction interface. On the other hand, the system responds to interrupts at a specified cycle, sends control data to the real-time control computer, reads the return word, and updates the display interface. The specific data flow diagram is as Figure 9 shown.
[0070] The schematic diagram of the external interface of the general simulator system simulation module is as Figure 10 shown. The system simulation module receives control commands from the keyboard and mouse through the USB port. The real-time control word and waveform data after calculation are sent to the real-time control computer through the TCP network interface, and at the same time, it receives the monitoring return word from the real-time control computer. In addition, the general simulator can input track data and waveform data from an external computer, and can also send various data to an external computer through the TCP network interface.
[0071] Among them, the interface definition between the system simulation module (software) and the real-time control computer is shown in Table 1 below:
[0072] Table 1 Interface between System Simulation Software and Real-Time Control Computer
[0073]
[0074] The definition of the control commands received by the system simulation software from the keyboard and mouse is shown in Table 2 below:
[0075] Table 2 Definition of System Simulation Software Control Word
[0076]
[0077] The data interface between the system simulation software and an external computer is defined as shown in Table 3 below:
[0078] Table 3 Definition of Interface between System Simulation Software and External Computer
[0079]
[0080] The core of the system simulation software is the task scheduling system, which is responsible for task scheduling and data flow control. In addition to the task scheduling system, the system simulation software can be functionally divided into a parameter setting module, a track management module, a database management module, a network communication module, a target simulation calculation unit, an interference simulation calculation unit, and a clutter simulation calculation unit. The schematic diagram of the internal interface of the system simulation software is as Figure 11 shown.
[0081] The internal interface interacts in the form of data structures, and the definitions of various data structures are shown in Tables 4 - 8 below:
[0082] Table 4 Requirements Table of Data Elements of System Setting Control Word
[0083]
[0084] Table 5 Requirements Table of Track / Trajectory Data Elements
[0085]
[0086] Table 6 Requirements Table of Data Elements of Target Simulation Control Word
[0087]
[0088] Table 7 Requirements Table of Data Elements of Interference Simulation Control Word
[0089]
[0090]
[0091] Table 8 Requirements Table of Data Elements of Clutter Simulation Control Word
[0092]
[0093] The specific test settings of the radiation signal editing, monitoring and testing system provided by the embodiments of the present invention are as follows:
[0094] 1. Test Environment
[0095] a) Windows XP sp2 operating system;
[0096] b) Source program editor: Program development tool Visual C++ 6.0;
[0097] 2. Test Content
[0098] The test of the radiation signal editing, monitoring and testing system is divided into four parts:
[0099] 1. Target simulation test; 2. Clutter simulation test; 3. Interference simulation test; 4. Waveform generation test.
[0100] 3. Test Procedure
[0101] 3.1 Target Simulation Test
[0102] The test procedure is divided into 1-target simulation and 2-target simulation.
[0103] 3.2 Clutter Simulation Test
[0104] The clutter simulation test procedure is divided into 4 cases, namely chaff interference clutter, ground clutter, sea clutter and meteorological clutter.
[0105] 3.3 Interference Simulation Test
[0106] In the interference simulation test, we divide the test procedure into function sweep interference, deception interference and noise frequency modulation interference.
[0107] 3.3.1 Function Sweep Interference
[0108] In the function sweep interference, we divide the waveform pattern into three patterns: stepped wave, rectangular wave and sawtooth wave, and conduct software tests on the bandwidth settings of the three patterns at 200 MHz and 600 MHz.
[0109] 3.3.2 Deception Interference
[0110] 3.3.3 Noise Frequency Modulation Interference
[0111] In the noise frequency modulation interference, the waveform distribution pattern is divided into two patterns: Gaussian distribution and uniform distribution, and the bandwidth settings of the two patterns are tested at 25 MHz, 50 MHz, 100 MHz and 200 MHz.
[0112] 3.4 Waveform Generation Test
[0113] In the waveform generation test, we divide the waveforms into single pulse signals, linear frequency modulation signals and phase coded signals.
[0114] 3.4.1 Single Pulse Signal
[0115] 3.4.2 Linear Frequency Modulation Signal
[0116] In the test of generating linear frequency modulation signals, we set the signal bandwidth to 10 MHz, 50 MHz, and 600 MHz for simulation tests.
[0117] The system provided by the embodiment of the present invention designed 4 test cases during actual testing, covering test types such as functional testing and performance testing. The test cases completely covered all requirements in the system software requirements specification, ensuring the sufficiency and completeness of the testing. No problems were found during the functional testing process. The test results showed that the functions of the system software under test met the requirements of the requirements specification. The performance test results showed that the system under test met the performance indicators of the system requirements specification. The human-machine interface test checked the friendliness and consistency of the interface of the system under test. After regression testing, the usability of the system was further enhanced.
[0118] In summary, the radiation signal editing, monitoring and testing system provided by the embodiment of the present invention is used to enable users to edit radiation signal patterns online or offline; support users to edit radiation signal patterns on the device panel of the multi-functional integrated signal simulator or on a remote computer, and load and control them through the network port; can edit and analyze the recorded data of the monitored radiation signals in real time or afterwards; moreover, the radiation signal editing, monitoring and testing system provided by the present invention can edit and load various radar signals, target simulation signals, clutter signals, interference signals and basic waveform signals in the frequency band of 0.4 - 40 GHz, and at the same time load the generated signals to the multi-functional signal simulator to generate corresponding radiation signals.
[0119] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.
Claims
1. A radiation signal editing, monitoring and testing system, characterized in that, include: System simulation module, used to realize system simulation module initialization, test scene setting, test process control, test status and data display, as well as test data recording and processing functions; The system simulation module includes: Initialization component, used to make the multi-function simulator enter normal working state after the system is powered on, run the initialization program when the system is powered on or reset, initialize the network interface, database initial connection, interface display initialization, USB serial port initialization, and set the system simulation module to the default working state, and set each parameter to the initial value; The test scenario setting component is used to realize the working state selection, test parameter input, calculation model selection and model simulation confirmation functions of the multi-function simulator; The test process control component is used to set the parameters of the file and the operator's operations according to the scenario, control the test rhythm, advance the test progress, and display the status and data of the test process in real time; The test situation and data display component is used to display the progress of the experiment and various data in real time when the multi-function simulator is working; Test data recording and processing components are used to realize various states and control parameters generated by the system control computer and equipment during the system test, providing a basis for post-analysis and test result evaluation; The real-time control module is used to receive the real-time simulation data sent by the system simulation module, forward it to the corresponding functional components in real time, and send the return data of each functional component to the system control computer to realize monitoring and subsequent data processing; The FPGA module is used to receive data sent by the real-time control module, generate radar signals, target simulation signals, clutter signals, interference signals and basic waveform signals, and load the generated signals into the multi-function signal simulator to generate corresponding radiation signals; The generated radar signal, target simulation signal, clutter signal, interference signal and basic waveform signal are all signals within the 0.4-40 GHz frequency band; The signal styles include single pulse signals, linear frequency modulation signals, phase coded signals, PD system signals, continuous wave signals, friend-or-foe identification signals, control command signals, ground clutter signals, meteorological clutter signals, passive chaff cloud interference signals, noise frequency modulation interference signals, function swept frequency noise interference signals, intermittent noise interference signals, random pulse interference signals, noise frequency modulation + swept frequency composite interference signals, and dragged interference signals.
2. The radiation signal editing, monitoring and testing system according to claim 1, characterized in that The system simulation module runs on a system control computer of a multifunctional simulator. The system control computer is a server with Windows XP operating system, integrated with peripheral interfaces, 2 network ports and 2 VGA video interfaces.
3. The radiation signal editing, monitoring and testing system according to claim 2, wherein Network port 0 is used for communication between the system simulation module and the real-time control computer. The system simulation module generates a simulation model and control data for each component according to user settings, sends the control data to the real-time control computer through network port 0, and forwards it to the corresponding functional components through the control computer. At the same time, the return data of each functional component is sent back to the system control computer through the real-time control computer to realize monitoring and subsequent data processing.
4. The radiation signal editing, monitoring and testing system according to claim 2, characterized in that, The network port 1 is used to realize the communication between the system control computer and the remote control computer. The remote control computer can remotely download the simulated track data and missile trajectory data of the target to the system control computer to realize the remote control of the simulator. At the same time, the waveform data of the simulator can also be sent back to the remote control computer to realize remote detection.
5. The radiation signal editing, monitoring and testing system according to claim 1, wherein The FPGA module includes a pulse frequency division counter, a phase accumulator, and a waveform memory, and the pulse frequency division counter, the phase accumulator, and the waveform memory are connected in sequence.
Citation Information
Patent Citations
Radio altimeter
CN108107426A
A signal generation device and method for an arbitrary waveform generator
CN109814656A
Broadband radar target echo signal simulation system and simulation method
CN112578346A