Research on the architecture of simulation system based on digital signal synthesis
Aiming at the problems of complex architecture,high hardware cost,and difficulty to expand and change of the injection simulation system based on RF signal synthesis,an injection simulation system architec-ture based on digital signal synthesis(DSS)is proposed.On the premise of reducing the complexity of the RF channel,the antenna beam forming unit(ABFU)in the RF signal synthesis architecture is replaced by a multi-channel digital signal synthesis module(MCDSSM).The system architecture is simple,the number of radar re-ceiving channels is arbitrarily variable and the access jamming equipment can be expanded.Furthermore,the pro-cessing flow of radar multi-channel echo signal module based on third-order intermodulation distortion simulation is given in the digital domain.The simulation experiment verifies the feasibility of the system architecture based on digital signal synthesis.
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