A new Bi-SAR T/R relative speed estimation method using nadir echo

摘要：

In this paper, a new bistatic SAR T/R relative speed estimation method using nadir echo is present. This method first exact the nadir echo from the range compressed SAR data, then the time-frequency estimation method is adopted to obtain the instantaneous frequency of the nadir echo, which is proportional to the relative speed of the T/R platform, finally, the relative speed is estimated by searching the maximum values of the STFT spectrogram at different time. Compare to the traditional motion parameter estimation method, this method can obtain the instantaneous relative speed between the T/R platforms rather than an average speed between them, and improve the quality of bistatic SAR image finally.

关键词： bistatic SAR nadir echo time-frequency relative speed esitimation

作者: Shi jun Zhang xiaoling Yang jianyu Yang haiguang

作者单位: 701-4 Lab.E.E.dept.University of Electronic Science and Technology of China,Chengdu,P.R.China Research institute of electronic technology of UESTC,Chengdu,P.R.China

会议类型: 国际会议

会议名称: 首届亚太合成孔径雷达会议(1st Asian and Pacific Conference on Synthetic Aperture Radar Proceedings)

会议地点: 安徽黄山

会议语种:英文

在线出版日期: 2007-11-05（万方平台首次上网日期，不代表论文的发表时间）