Electromagnetic environment effect test semi-physical simulation method and device
By employing a hardware-in-the-loop simulation method, utilizing signal acquisition and generation modules, and combining them with mathematical models, the problem of reproducing the actual environment in electromagnetic environment effect experiments was solved. This enabled efficient and low-cost electromagnetic effect simulation and evaluation, improving the controllability and accuracy of the experiments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- UNIV OF ELECTRONICS SCI & TECH OF CHINA
- Filing Date
- 2024-10-21
- Publication Date
- 2026-07-21
AI Technical Summary
In existing electromagnetic environment effect tests, the actual physical environment is difficult to fully reproduce, especially under high-power electromagnetic fields or complex interference conditions. The test costs are high and the difficulty is great. Furthermore, pure numerical simulation cannot simulate the actual situation in real time, resulting in a large difference between the calculated results and the test results.
A hardware-in-the-loop simulation method is adopted, which uses a signal acquisition module, a host computer and a signal generation module to replace the physical object with a mathematical model to simulate electromagnetic environment effects. This includes signal calibration, power adjustment, waveform data acquisition and simulation generation, so as to realize the simulation and evaluation of electromagnetic environment effects.
It provides a high-fidelity, repeatable, and low-cost electromagnetic environment effect test scheme that can approximate the actual test environment, quickly verify electromagnetic effect models, reduce experimental costs, and improve experimental efficiency and data generation capabilities.
Smart Images
Figure CN119439774B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of electromagnetic environment effect testing, and in particular to a hardware-in-the-loop simulation method and apparatus for electromagnetic environment effect testing. Background Technology
[0002] With the rapid development of microelectronics technology, the integration and miniaturization of microelectronic devices are constantly improving, leading to a decrease in their overvoltage, overcurrent, and electromagnetic interference resistance, resulting in a gradual increase in the electromagnetic vulnerability of electronic devices. Currently, the power of various electromagnetic radiators, such as radar and communication sources, is increasing, their number is multiplying, and their spectrum is widening, making the electromagnetic environment more complex and deteriorating. These complex electromagnetic environments cause functional disorders, performance degradation, and even damage to electronic devices. Therefore, ensuring the normal operation of electronic devices in complex electromagnetic environments is a research hotspot in the field of electromagnetic environments both domestically and internationally. The effects of the interaction between complex electromagnetic environments and electronic devices, macroscopically manifested as the degree of influence and damage to the electronic devices, lie in the effect mechanism of the interaction between electromagnetic waves and the effector. Therefore, studying the characteristics and mechanisms of electromagnetic environments is key to solving these problems. In recent years, significant progress has been made in electromagnetic environment effect testing and evaluation technologies, resulting in corresponding testing methods and standards.
[0003] Electromagnetic Environmental Effects (E3) can be summarized as the impact of the electromagnetic environment on the operational capabilities of personnel, equipment, systems, and platforms. The electromagnetic environments involved in E3 include both man-made electromagnetic environments such as radio frequency systems, ultra-wideband devices, high-power microwave systems, and electromagnetic pulses, as well as natural electromagnetic environments such as lightning and static electricity. From a disciplinary perspective, E3 encompasses electromagnetic compatibility (EMC), electromagnetic interference (EMI), electromagnetic vulnerability (EMV), electromagnetic pulse (EMP), electronic protection (EP), electrostatic discharge (ESD), and electromagnetic radiation hazard (EMRADHAZ).
[0004] Among international military standards for electromagnetic environment effects, the US military standards have the most widespread influence. Their core standards are the system-level MIL-STD-464C "Requirements for Electromagnetic Environment Effects of Systems" and the equipment-level MIL-STD-461G "Requirements for Controlling Electromagnetic Interference Characteristics of Equipment and Subsystems," etc. Representative NATO standards for electromagnetic environment effects include the AECTP-250 series "Electrical and Electromagnetic Environment Conditions" and the AECTP-500 series "Testing and Verification of Electromagnetic Environment Effects." International civilian standards related to electromagnetic environment effects mainly include the IEC 61000 series and the CISPR series; these standards are still being continuously supplemented and improved. While carrying out electromagnetic compatibility engineering practices, my country has also conducted electromagnetic compatibility testing research and facility construction, possessing equipment-level electromagnetic compatibility testing capabilities and system-level electromagnetic environment effect testing capabilities.
[0005] Electromagnetic environment effect testing is an important means of qualitatively, quantitatively, or comprehensively evaluating the impact of complex electromagnetic environments on devices (electronic components, links, equipment, or systems). It primarily relies on sound theoretical foundations, appropriate experimental methods and techniques to obtain highly reliable experimental data, and employs scientific and reasonable evaluation systems and methods to comprehensively and objectively assess the performance of devices under complex electromagnetic environments. Electromagnetic environment effect testing can assess the degree of influence of complex electromagnetic environments on devices, thereby estimating the performance indicators and application effectiveness of devices under different electromagnetic environmental conditions. This is of great significance for studying the mechanisms of electromagnetic environment effects, analyzing and verifying, and improving the functional and performance design of devices under complex electromagnetic environments.
[0006] However, the interaction between the electromagnetic environment and the effector involves multiple interacting physical variables, making pure numerical simulation of this interaction process difficult or unlikely to achieve the desired results. Furthermore, the uncontrollable random factors during actual testing further constrain this process. These limitations mean that predicting or evaluating electromagnetic effect test results solely through theoretical analysis or pure numerical simulation inevitably leads to discrepancies between calculated and experimental results. Simultaneously, due to the complexity of electronic devices, the uncertainties of the development process, and the diversity of electromagnetic environment distributions, solving the electromagnetic environment effects of electronic devices requires extensive experimentation and actual measurement. While full-scale physical effect testing can provide simulations closest to reality, its drawbacks cannot be ignored, such as high cost, long development cycles, difficulty in simulating extreme conditions, and difficulty in repeating experiments.
[0007] Hardware-in-the-Loop (HIL) simulation offers numerous advantages in electromagnetic effect testing, particularly in areas such as high-power microwaves, electromagnetic interference (EMI), and electromagnetic compatibility (EMC). HIL is a real-time simulation method that integrates a mathematical or physical model (physical effect model) into the actual test circuit, replacing the physical object. It is an ideal method for electromagnetic effect testing that closely approximates physical testing, offering significant advantages such as high versatility, high repeatability, and low cost-effectiveness, making it an important branch of the simulation field.
[0008] Compared with traditional physical and purely simulated electromagnetic effect testing methods, establishing a hardware-in-the-loop simulation platform to conduct electromagnetic environment effect tests has the following advantages:
[0009] 1) Cost Reduction: Real electromagnetic effect testing equipment and environments are typically expensive, especially when complex or large-scale systems are involved. Hardware-in-the-loop (HIL) simulation reduces the need for expensive equipment and facilities by simulating parts of the system or environment, thereby lowering experimental costs. Simultaneously, it reduces the need for material consumption, especially in high-power microwave experiments where physical devices may be easily damaged or depleted. Particularly in the absence of physical components, HIL simulation allows for the construction of mathematical models via a host computer, facilitating relevant experimental research and providing an efficient and economical solution for electromagnetic environment effect testing.
[0010] 2) Real-time operation and efficient experimentation: In electromagnetic effect experiments, simulating the dynamic response between a real electromagnetic field and the equipment is crucial. Compared to frequently rebuilding or adjusting the physical experimental platform, a hardware-in-the-loop (HIL) simulation platform can quickly iterate and modify experimental conditions, adjust simulation models and parameters, and allow researchers to interact with actual hardware on a real-time scale, rapidly verify different electromagnetic effect models and hypotheses, and directly observe the system's dynamic response.
[0011] 3) High fidelity: Compared to purely physical testing methods, the hardware-in-the-loop simulation platform involved in this invention allows for the custom construction of mathematical models of the effector required for testing, enabling them to possess the same response characteristics as the physical object. The interaction between the electromagnetic environment and the effector involves multiple mutually influencing physical variables, and various unpredictable random factors exist during actual testing, making pure numerical simulation unable to simulate the actual experimental conditions in real time. Therefore, compared to pure numerical simulation, the hardware-in-the-loop simulation platform involved in this invention more closely approximates the actual testing environment of electromagnetic effect experiments.
[0012] 4) Facilitates Mechanism Analysis: The hardware-in-the-loop simulation platform uses mathematical models to replace physical objects, and can quickly generate a large amount of effect data according to testing requirements, possessing statistical advantages in the mechanism analysis of electromagnetic environment effects. The amount of data in electromagnetic environment effect test databases is usually limited. Addressing the prerequisite of needing a large amount of data for electromagnetic environment effect mechanism research, this invention can quickly generate a large amount of effect data, possessing statistical advantages in the mechanism analysis of electromagnetic environment effects, and can provide a basis for the parametric design of effectors.
[0013] 4) Cross-validation and optimization: Hardware-in-the-loop (HIL) simulation platforms offer high flexibility, not limited to single-effect or electromagnetic effect experiments. This allows researchers to cross-validate the accuracy of different effector and electromagnetic effect models, optimizing the models while obtaining simulation results. When testing the anti-interference capabilities of new materials, electronic devices, or systems, HIL simulation platforms can serve as a method for early design validation and optimization.
[0014] 5) Controllable and repeatable test environment: In actual physical environments, test conditions may be difficult to fully reproduce, especially under high-power electromagnetic fields or complex interference conditions. Hardware-in-the-loop (HIL) simulation provides a highly controllable and repeatable test environment, capable of reproducing situations that equipment might encounter in actual working environments or accurately reproducing the same experimental conditions. This consistency is crucial for verifying experimental data and refining theoretical models.
[0015] Therefore, it is necessary to provide a hardware-in-the-loop simulation technology for electromagnetic environment effect testing. Summary of the Invention
[0016] This invention provides a hardware-in-the-loop simulation method and apparatus for electromagnetic environment effect testing, aiming to solve the problem that experimental conditions may be difficult to fully reproduce in actual physical environments, especially under high-power electromagnetic fields or complex interference conditions, and that existing electromagnetic environment effect testing platforms are difficult to construct and costly.
[0017] On the one hand, the present invention provides a hardware-in-the-loop simulation method for electromagnetic environment effect testing, the method comprising the following steps:
[0018] Identify the effectors in the signal link of the electromagnetic environment effect test;
[0019] The upstream link signal of the link where the effector is located is collected and used as the input signal for the hardware-in-the-loop simulation;
[0020] After calibrating the input signal and adjusting the signal power using an automatic gain controller, waveform data is then acquired.
[0021] The host computer generates the corresponding output waveform data through numerical calculations (such as amplification, attenuation, filtering, etc.) based on the input signal and the function of the effect to be simulated.
[0022] The waveform data of the output signal is generated based on the waveform data generation method configured by the user.
[0023] Based on the waveform data and the power requirements of the input signals of the downstream link of the effector, the output signal of the effector port is generated and transmitted to the downstream link of the link where the effector is located.
[0024] On the other hand, the present invention also provides a hardware-in-the-loop simulation device for electromagnetic environment effect testing, which is applied to the signal link of electromagnetic environment effect testing to simulate the effector in the signal link and its surrounding electromagnetic environment. The device includes: a signal acquisition module, a host computer and a signal generation module.
[0025] in,
[0026] The signal acquisition module is used to receive the upstream link signal of the link where the effector is located, and to calibrate and adjust the signal power of the received upstream link signal, and then acquire the waveform data and upload it to the host computer.
[0027] The host computer is used to simulate the electromagnetic environment of the effector and its surroundings, program the working mode and parameters of the signal acquisition module, analyze and process the waveform data uploaded by the signal acquisition module, and generate the waveform data of the output signal based on the waveform data generation method configured by the user and send it to the signal generation module.
[0028] The signal generation module is used to generate the output signal of the effector port based on the waveform data of the received output signal, and transmit it to the subsequent link of the link where the effector is located.
[0029] This invention constructs a corresponding numerical substitution model to simulate the effector based on the required effector parameter indicators. The indicator parameters can be derived from the physical test data of the required substitute, or they can be customized as needed.
[0030] The principle of the semi-physical simulation method and device for electromagnetic environment effect testing provided by this invention is as follows: First, the input signal of the preceding link is acquired by the signal acquisition module to obtain all the inputs of the preceding link of the original effector. Then, the electromagnetic environment of the effector and its surroundings is simulated by a host computer. Finally, based on the simulation results, the output waveform of the port where the effector is located is generated by the signal generation module and output to the subsequent link of the original effector. That is, the simulation and evaluation of electromagnetic environment effects are realized by software instead of hardware. The semi-physical simulation device provided by this invention realizes the equivalent replacement of hardware by software, that is, while retaining the electromagnetic environment effect test conditions of the effector, it considers its impact on the overall link. The implementation of this equivalent replacement of hardware by software is as follows: based on the actual test environment, according to the function and technical indicators of the effector, a mathematical model is used to replace the physical object to approximate the actual test results of the electromagnetic environment effect test. Using a mathematical model to replace the corresponding physical object can verify the reliability of devices, links, equipment, and even the entire system under real test conditions, and rapidly evaluate its performance indicators.
[0031] Furthermore, the signal acquisition module includes an input automatic gain control unit and an oscilloscope. The input automatic gain control unit is used to adjust the power of the preceding link signal to prevent damage to the oscilloscope. After receiving the output signal from the input automatic gain control unit, the oscilloscope acquires waveform data and displays it in real time, and uploads the acquired waveform data (e.g., via Ethernet data transmission) to the host computer.
[0032] Furthermore, the host computer includes a signal processing unit, a human-machine interface, and a control and data transmission unit. The signal processing unit analyzes and processes the waveform data uploaded by the signal acquisition module and generates output signal waveform data. The human-machine interface provides a graphical interface for users to perform semi-physical simulation operations (such as model building, simulation, generation of output signals, and related control commands). The control and data unit is used to program the operating parameters of the test instrument, signal acquisition module, and signal generation module to complete the reception of waveform data, transmission of control commands, and power adjustment of transmitted signals.
[0033] In this invention, the host computer performs the important functions of receiving waveform data and sending control commands; the host computer can analyze and process the acquired front-end link signals; according to the actual experimental requirements, it builds the mathematical model of the effect required for testing, so that it has the same response characteristics as the physical object; and through the operation control and data transmission unit, it communicates with the oscilloscope and arbitrary waveform generator via Ethernet.
[0034] Furthermore, the human-computer interaction interface can also be used to monitor and process the input waveform data in real time, thereby generating the output signal waveform data and its signal generation control instructions that need to be transmitted to the signal generation module according to the different functional requirements of the effector in the electromagnetic effect experiment, and monitoring the output waveform.
[0035] Furthermore, the human-computer interaction interface can also be used to call up matching control strategies from a preset control strategy set to optimize and adjust the effector model according to the functional requirements of the effector in electromagnetic effect experiments.
[0036] Furthermore, the human-machine interface is also used to remotely control the relevant testing instruments for electromagnetic environment effect tests, receive feedback data from the testing instruments, and send control commands to the testing instruments to control their working parameters and working modes; read the loss and phase shift of the test link, and correct or compensate for the link.
[0037] Furthermore, the signal generation module includes an arbitrary waveform generator and an output automatic gain control unit. The arbitrary waveform generator is used to receive waveform data generated by the host computer and generate the radio frequency signal required for the experiment. The output automatic gain control unit adjusts the signal power of the generated radio frequency signal and then transmits the radio frequency signal to the subsequent link of the link where the effector is located, so as to realize the adjustment of the output power of the radio frequency signal transmitted to the subsequent link.
[0038] Furthermore, the control and data transmission unit regulates the oscilloscope, arbitrary waveform generator, and input / output automatic gain control unit to ensure that the test instruments adjust the data input, reading, and signal power. Simultaneously, after the front-end link signal is processed by the signal processing unit, the control and data transmission unit programs the oscilloscope and the input automatic gain control unit, and sends control commands to the arbitrary waveform generator.
[0039] Furthermore, the control operations performed by the user through the human-computer interaction interface of the host computer include:
[0040] (1) Remotely control the relevant testing instruments for electromagnetic environment effect tests, receive feedback data from the testing instruments, and send control commands to the testing instruments to control their working parameters and working modes; read the loss and phase shift of the test link, and correct or compensate the link.
[0041] (2) Real-time monitoring, storage and retrieval of input / output waveform data of the hardware-in-the-loop simulation device.
[0042] (3) Establish a mathematical model of the effector and generate waveform data of the output signal by self-programming or calling third-party simulation software.
[0043] Furthermore, the waveform data generation method configured by the user can adopt any one of the following three methods:
[0044] (1) By establishing a simulation model of the effector, the corresponding output signal is generated;
[0045] (2) Output signals are generated directly through independent programming and based on the system transfer function;
[0046] (3) The waveform data is directly generated as the output signal by calling third-party simulation software.
[0047] The technical solution provided by this invention brings at least the following beneficial effects:
[0048] This invention, under actual complex electromagnetic environment testing conditions, uses a mathematical model to approximate the actual test results of electromagnetic environment effect experiments by replacing physical objects with hardware functions and technical specifications. The simulation device of this invention includes a signal acquisition module, a host computer, and a signal generation module. The host computer comprehensively processes the input signals of the preceding links and generates dynamic response signals of the physical objects before outputting them to the subsequent links. By using software to replace physical objects, the dynamic response characteristics of the affected objects in complex electromagnetic environments are simulated and evaluated. This invention provides a highly controllable and repeatable test environment for high-power microwave and electromagnetic compatibility research, solving the problem of accurately reproducing high-power electromagnetic fields or complex interference conditions, and providing a convenient, efficient, and cost-effective universal solution for conducting electromagnetic environment effect experiments. Attached Figure Description
[0049] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0050] Figure 1 This is a schematic diagram of a hardware-in-the-loop simulation device for electromagnetic environment effect testing provided in an embodiment of the present invention;
[0051] Figure 2 This is a schematic diagram of the workflow of a hardware-in-the-loop simulation device for electromagnetic environment effect testing provided in an embodiment of the present invention. Detailed Implementation
[0052] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be described in detail and completely below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Generally, the components of the embodiments of the present invention described and shown in the accompanying drawings can be arranged and designed using different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the present invention.
[0053] See Figure 1 The present invention provides a hardware-in-the-loop simulation method and apparatus for electromagnetic environment effect testing, comprising: a signal acquisition module, a host computer, and a signal generation module. The signal acquisition module includes an input automatic gain control unit and an oscilloscope; the host computer includes a signal processing unit, a human-machine interface, and a control and data transmission unit; the signal generation module includes an arbitrary waveform generator and an output automatic gain control unit. Each module unit is specifically as follows:
[0054] The signal acquisition module is responsible for acquiring the input signals of the front-end link. The main function of the automatic gain control unit at the input end is to adjust the signal power of the front-end link to prevent damage to the oscilloscope. The oscilloscope acquires the waveform of the input signal of the front-end link and monitors the acquired waveform data in real time.
[0055] The host computer builds a mathematical model in a highly integrated software environment and monitors the operation status of the electromagnetic environment effect test in real time. The signal processing unit primarily analyzes and processes the signals from the preceding links to generate the input signals for the signal generation module. Users complete data monitoring, analysis, processing, and the construction of the mathematical model of the effector through a human-machine interface. Based on the functional and performance requirements of the effector in the electromagnetic environment effect test, the unit generates the waveform data and related instructions to be transmitted to the signal generation module. The control and data transmission unit mainly programs the oscilloscope, arbitrary waveform generator, and input / output automatic gain control unit to ensure that the test instruments adjust the input, reading, and signal power of the data.
[0056] The signal generation module is responsible for receiving signal generation instructions, outputting radio frequency (RF) signals, adjusting signal power, and transmitting them to the subsequent link. The arbitrary waveform generator parses the relevant instructions sent by the control unit and generates the RF signals required for the experiment based on the received data. The automatic gain control unit adjusts the power of the generated RF signals and transmits them to the subsequent link.
[0057] The workflow of each module unit of the semi-physical simulation method and device for electromagnetic environment effect testing provided in this embodiment of the invention is as follows:
[0058] A signal acquisition module is used to obtain all inputs from the preceding links in the path of the original effector. Specifically, the automatic gain control unit is used to adjust the input signal power of the preceding links; the oscilloscope is used to acquire and display the input waveforms of the preceding links in real time.
[0059] Subsequently, a host computer was used to simulate the effector and its surrounding electromagnetic environment. Specifically, the signal processing unit was used to analyze and process the signals from the preceding links; the human-computer interface provided a graphical interface for users to perform operations such as model building, simulation, generation of output signals, and related control commands for the effector; and the control and data unit was used to program the test instruments and the automatic gain control unit at the input / output terminals, completing the reception of data, transmission of control commands, and power adjustment of transmitted signals.
[0060] Finally, based on the simulation results, the signal generation module generates the output waveform at the port where the effector is located and outputs it to the subsequent link of the original effector. Specifically, the arbitrary waveform generator is used to receive waveform data generated by the host computer and generate the radio frequency signal required for the experiment based on the received data; the automatic gain control unit is used to adjust the output power of the generated radio frequency signal at the output end and transmit it to the subsequent link.
[0061] In one embodiment, see Figure 2 The workflow of the semi-physical simulation method and device for electromagnetic environment effect testing provided in this embodiment of the invention specifically includes:
[0062] Step 1: In the preparation stage of the electromagnetic environment effect test, the test instrument needs to be calibrated. During signal acquisition and signal output, the link loss and phase shift need to be considered and corresponding corrections or compensations need to be made.
[0063] Step 2: Acquire the signals from the preceding link using the signal acquisition module;
[0064] The system acquires the input signal from the pre-amplifier link. The pre-amplifier link signal is connected to the input automatic gain control unit via wired or wireless means to avoid damaging the oscilloscope. After the input automatic gain control unit adjusts the power of the input signal from the pre-amplifier link, it is transmitted to the oscilloscope. The oscilloscope communicates with the host computer via Ethernet.
[0065] Step 3: Based on the actual experimental requirements, the user builds the mathematical model required for the experiment on the host computer so that it has the same response characteristics as the physical object, in order to generate waveform data of the output signal;
[0066] The host computer's signal processing unit analyzes and processes the waveform data of the front-end link acquired by the oscilloscope of the signal acquisition module, providing waveform data for the waveform generation module.
[0067] A waveform data generation method based on a host computer-based human-computer interaction interface that replicates the response characteristics of the physical object is available, with the following three methods for generating the output signal:
[0068] (1) By establishing a simulation model of the effector, the corresponding output signal is generated;
[0069] (2) Output signals are generated directly through independent programming and based on the system transfer function;
[0070] (3) The waveform data is directly generated as the output signal by calling third-party simulation software.
[0071] The host computer's signal processing unit transmits the generated output signal waveform data to the arbitrary waveform generator through the control and data transmission unit. The control and data transmission unit is mainly used to receive data collected by the oscilloscope, send control commands to the arbitrary waveform generator, and adjust the input / output signal power.
[0072] Step 4: Use the signal generation module to generate the signal input to the subsequent link;
[0073] The arbitrary waveform generator of the signal generation module parses the control commands sent by the control and data transmission unit and generates the radio frequency signal required for the test based on the received waveform data. The radio frequency signal can be transmitted to the automatic gain control unit of the signal generation module via wired (coaxial cable, waveguide, microstrip line, etc.) or wireless means. The automatic gain control unit first performs self-calibration and completes signal power adjustment before transmitting it to the subsequent link.
[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
[0075] The above descriptions are merely some embodiments of the present invention. Those skilled in the art can make various modifications and improvements without departing from the inventive concept of the present invention, and these all fall within the scope of protection of the present invention.
Claims
1. A hardware-in-the-loop simulation device for electromagnetic environment effect testing, characterized in that, In the signal link used for electromagnetic environment effect testing, the device includes: a signal acquisition module, a host computer, and a signal generation module; in, The signal acquisition module is used to receive the upstream link signal of the link where the effector is located, and to calibrate and adjust the signal power of the received upstream link signal, and then acquire the waveform data and upload it to the host computer. The host computer is used to simulate the electromagnetic environment of the effector and its surroundings, set the working mode and parameters of the signal acquisition module, analyze and process the waveform data uploaded by the signal acquisition module, and generate the waveform data of the output signal based on the waveform data generation method configured by the user and send it to the signal generation module. The signal generation module is used to generate the output signal of the effector port based on the waveform data of the received output signal, and transmit it to the subsequent link of the link where the effector is located; The host computer includes a signal processing unit, a human-machine interface, and a control and data transmission unit. The signal processing unit analyzes and processes the waveform data uploaded by the signal acquisition module and generates output signal waveform data. The human-machine interface provides a graphical interactive interface for users to perform hardware-in-the-loop simulation operations. The control and data transmission unit programs the operating parameters of the test instrument, signal acquisition module, and signal generation module to complete the reception and transmission of waveform data, control commands, and power adjustment of the transmitted signal. The human-machine interface is also used to monitor and process the waveform data uploaded by the oscilloscope in real time, so as to generate the output signal waveform data and signal generation control instructions to be transmitted to the signal generation module according to the different functional requirements of the effector in the electromagnetic effect experiment, and monitor the output waveform; the human-machine interface is also used to call the matching control strategy in the preset control strategy set according to the functional requirements of the effector in the electromagnetic effect experiment, and optimize and adjust the effector model.
2. The hardware-in-the-loop simulation device as described in claim 1, characterized in that, The signal acquisition module includes an input automatic gain control unit and an oscilloscope. The input automatic gain control unit is used to adjust the power of the preceding link signal to prevent damage to the oscilloscope. After receiving the output signal from the input automatic gain control unit, the oscilloscope acquires waveform data and displays it in real time, and uploads the acquired waveform data to the host computer.
3. The hardware-in-the-loop simulation device as described in claim 2, characterized in that, The oscilloscope is connected to the host computer via Ethernet.
4. The hardware-in-the-loop simulation device as described in claim 1, characterized in that, The human-machine interface is also used to remotely control the relevant testing instruments for electromagnetic environment effects testing, receive feedback data from the testing instruments, and send control commands to the testing instruments to control their working parameters and working modes; read the loss and phase shift of the test link, and correct or compensate the link.
5. The hardware-in-the-loop simulation device as described in claim 1, characterized in that, The signal generation module includes an arbitrary waveform generator and an output automatic gain control unit. The arbitrary waveform generator is used to receive waveform data generated by the host computer and generate the radio frequency signal required for the experiment. The output automatic gain control unit adjusts the signal power of the generated radio frequency signal and then transmits the radio frequency signal to the subsequent link of the link where the effector is located.
6. The hardware-in-the-loop simulation device as described in claim 1, characterized in that, The waveform data for user configuration information can be generated using any one of the following three methods: (1) By establishing a simulation model of the effector, the corresponding output signal is generated; (2) Output signals are generated directly through independent programming and based on the system transfer function; (3) The waveform data is directly generated as the output signal by calling third-party simulation software.