Equivalent transformation error analysis for monostatic-bistatic SAR echo

Due to stealth, counter reconnaissance and other advantages, more attention has been focused on bistatic SAR. Echo distance course of bistatic SAR is more complicated than monostatic SAR, so as to increase the difficulty of educing the three imaging factors in Chirp Scaling algorithm of bistatic SAR with large computation. This paper analyzes the error caused by the situation of transitional invariant mode and transitional variant mode of bistatic SAR.