ISAR imaging analysis of Bistatic FMCW radar

This paper studies the basic issue of Bistatic ISAR imaging using FMCW radar under the model of Bistatic radar systems. Firstly, the echo signal of FMCW radar which in Bistatic system is analyzed, the coupling terms of range fast time and azimuth slow time which including uniquely in FMCW signal are extracted from the phase of echo signal; then its forms in range Doppler domain and influences to range profile are analyzed; Simultaneously the corresponding compensation algorithm is applied to compensate the coupling terms. The last simulations show that the proposed compensation algorithm in this paper improves the defocus phenomenon which caused by using FMJCW signal and can achieve good imaging of targets.