Abstract:In order to meet the needs of the analysis and evaluation of the passive jamming test environment of antiship missile in the complex electromagnetic environment, this paper demonstrates and designs the passive situation of environmental monitoring scheme which based on coherent radar signal processing technology .The visualization and quantitative passive jamming test data in time domain, frequency domain and energy domain, is admitted by the improvement of signal processing software radar seeker,And the use of high-speed data acquisition equipment, which provide data support for the analysis and evaluation of the test situation. Through actual engineering application, it meets the need of anti jamming test interference situation.