Probingintotheimplementation Of Hardware-in-the-LoopSimulationfortheassessofJammingeffect

The evaluation of radar jamming has a direct effect on the construction ofjamming equipment test system and the comprehensive evaluation for radar jammingequipment performance, so it plays an important guiding role in the design of thejammer. In this paper, the method of building a hardware-in-the-loop jamming effectevaluation system was researched based on the semi-physical simulation technology.Each function module of radar signal processing hardware and softwareimplementation were studied.Firstly, the model of radar ECM Scenario was buildincluding the differentpatterns to construct hardware-in-the-loop simulation system. The research focused onstudying the implementation of hardware-in-the-loop simulation system by the way ofinject-RF-jamming-signal, which been injected jamming signal and echo signal bytwo independent branches, jamming signal from radio frequency and echo signal fromintermediatefrequency, and blendingthem in baseband signal after downconversionand signal preprocessing.Secondly, the implementation of radar signal processor wasgiven based on the pattern of inject-RF-jamming-signal. The mainly works of thatincludingsignal generationmodule, signal gather module and signal processingmodule.Finally, the implementation ofa hardware-in-the-loop jamming effect evaluationsystem was given, which included the installation of microwave unreflected chamberand antenna, the implementation of the jamming effect evaluation and the use ofcontrol software.The system performancewas tested and validated.