Abstract：Some probles about SAR moving targets imaging by joint time-frequency analysis are discussed in this paper.Three kinds of time-frequency transforms--Short Time Fourior Transform(STFT),Wavelet Transform(WT) and Wigner-Ville Distribution (WVD) are compared.It is presented that only WVD could meet the requirement.Moveover,Hough Transform(HT) is employed in restraining the distribing corss terms,rpoduced by the WVD due to its bilinear property.Experiments test that the combined WVD and HT could provide satisfactory detection performance even if the signal-to-noise rato is very low.
潘润红; 马平清; 朱锡兴; 柴振明. 利用时-频分析进行合成孔径雷达运动目标成象的研究[J]. 电子与信息学报, 1998, 20(3): 392-396 .
Pan Runhong①; Ma Pingqing②; Zhu Xixing①; Chai Zhenming①. A RESEARCH OF SAR MOVING TARGETS IMAGING BY JOINT TIME-FREQUENCY ANALYSIS. , 1998, 20(3): 392-396 .
1998, Vol. 20 
