In communication countermeasure simulation or networking verification experiments, it is necessary to conduct experiments in the field as realistic as possible and even in the wireless signal environment during wartime to effectively evaluate the effectiveness of countermeasures and communication networking, and provide true and credible technology for the finalization of equipment in accordance with. However, the cost of field trials is high and the investment is large, and the trial scenarios are difficult to reproduce 100%.
Runke's general complex electromagnetic environment communication effectiveness evaluation and verification system can be built in an infield environment, establish a comprehensive dynamic characteristics model library of electromagnetic environment that meets the requirements of electromagnetic environment adaptability research, and establish a complete complex electromagnetic environment measurement theory and measurement index system. Form measurement methods that meet the application requirements of electromagnetic environment analysis, system modeling, effectiveness simulation, analysis and evaluation, and realize realistic and complex electromagnetic environment simulation, thereby verifying whether the designed data link/communication system technical indicators are reasonable, or the terminal equipment under test The actual tactical performance of the system greatly reduces the cost of expensive outfield testing, and helps developers find possible design defects early, shorten the development cycle and save related quality costs caused by quality defects.
solution
• Overall plan
Runke's general complex electromagnetic environment communication effectiveness evaluation and verification system mainly includes a wireless channel simulator HiComent and a communication interference simulator. The system is highly customizable and can meet the test verification requirements of different types of communication terminals of different types and standards, such as aircraft, satellites, aircraft, and ground nodes, in the prototype test phase and the finalized test phase.
Both the wireless channel simulator HiComent and the communication interference simulator can receive N channels of radio frequency signals from the transmitter on independent channels, and then adjust the effect of different channels of signals according to real-time configuration instructions, control the realization of channel and interference effects, and then send them to Receiving end. In terms of control, the main control software completes communication terminal node trajectory calculation, channel interference control, and communication terminal waveform control. The channel interference control and communication terminal waveform control are based on the closed-loop feedback information from the receiving end. The feedback information is real-time by the upper computer sub-control software. Reported. The upper computer sub-control software can receive the control instructions of the main control software and distribute them to the communication terminal and simulator device for configuration; it can also independently control the communication terminal and simulator device. The principle of closed-loop feedback control is to adjust the channel model and related parameters based on the performance evaluation results of the demodulated signal at the receiving end, the current channel parameters, and the characteristics of the current node's trajectory and attitude, so as to simulate the real complex electromagnetic environment more realistically.
The number of channels of the wireless channel simulator and the communication interference simulator can be customized, and the full cross-interconnection of multiple simulators can also be realized through customized high-speed baseband data interaction equipment. ??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????
• The main function
♦ Simulate real, 100% repeatable test outside field wireless environment for data link and communication network equipment in the laboratory
♦ Pre-research tests for various wireless channels or interference work scenarios that cannot be constructed in field tests
♦ Through closed-loop real-time channel/interference selection and channel/interference feature simulation, the accurate reproduction of a large number of working conditions and complex working conditions is realized
♦ It can reproduce extremely high Doppler frequency shift, extremely long time delay and drastically changing dynamic range, as well as a variety of military battlefield scenarios such as sea, satellite, bomb, air-to-air, and air-to-ground. It supports predefined standard channel models and user customization Define the channel model and customize the military communication channel model according to user needs
♦ It can reproduce single frequency, sweep frequency, noise, comb spectrum, forwarding and other single interference or composite interference scenarios, perform performance testing on the anti-interference characteristics of data links and communication networks, and customize military communication interference models according to user needs
♦ For detailed technical specifications, please refer to "Wireless Channel Simulator"
• main feature
♦ Provides an integrated solution for comprehensive internal field testing based on complex electromagnetic environment simulation
♦ Support monitoring, recording and exporting the operating status of channel simulation and interference simulation, including working status, working parameters, input and output, data management, communication interface, etc.
♦ Support manual configuration and closed-loop automatic control of experimental complex electromagnetic environment parameters
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