Range migration algorithm ( rma ) and backprojector algorithm ( bpa ) are studied . a new experiment method , bi - static sar , to solve lfm radar range " dead " area as well as its imaging algorithm are presented . the feasibility of the experiment method is confirmed by excellent experiment results 分析研究了波數(shù)域成像算法和后向投影( bp )成像算法;提出了便于軌道實驗的雙站uwbsar實驗方案和成像算法,并成功應用于軌道uwbsar實驗系統(tǒng);研究了用于成像處理的插值算法及其實現(xiàn)方法;研究討論了uwbsar的特殊性。