We analize the reason of periodic bright and shadow stripe noise generated in burst mode SAR
when the full aperture imaging algorithm is used.A simple but efficient one-dimensional frequency domain filtering method is proposed along with the flow chart of improved Range Doppler imaging algorithm including this operation.We discuss the nonperiodic abnormal stripe noise due to the spaceborne SAR system itself
and present an area filtering method in two-dimensional frequency domain.The validities of the algorithms in the paper are proved by processing actual spaceborne SAR data.
关键词
距离多普勒算法条纹噪声频域滤波Burst工作模式
Keywords
Range Doppler algorithmstripe noisefrequency domain filteringburst mode