False response analysis of channelized reconnaissance receiver

摘要

Channelized reconnaissance receiver (CRR) is very important for radar ECCM. The false response caused by the nonlinearity of microwave circuits reduces the dynamic range of the CRR. In this paper, we analyzed the frequency and amplitude characteristic of false response, developed a method to identify the false response with multi-signal input, and chose the optimization intermediate frequency to minimize the false response with single-signal input. Finally, we designed a CRR based on these analyses, which has a large dynamic range more than 90dB.