Doppler Centroid Estimation for Space-Surface BiSAR

摘要：

Doppler Centroid estimation is a crucial problem in Synthetic Aperture Radar（SAR）. In Bistatic SAR （BiSAR） phase synchronization error and Doppler phase have nearly the same form; Doppler centroid can not be estimated in traditional way. A Doppler centroid estimation method is proposed for Space-Surface BiSAR system through phase-cancellation of Dual-channel direct signal. Through phase cancellation, phase synchronization error can be counteracted while Doppler phase is reserved and Doppler centroid can be estimated from the reserved phase. This method needs little prior information and can suppress phase noise.

关键词： Space-Surface BiSAR Doppler Centroid Estimation phase cancellation

作者: Weiming Tian Teng Long Jian Yang Xiaopeng Yang

作者单位: Electronic Engineering Department, Tsinghua University, Beijing, China School of Information and Electronics, Beijing Institute of Technology, Beijing, China

会议类型: 国际会议

会议名称: 2011 IEEE CIE International Conference on Radar(2011年IEEE国际雷达会议RADAR 2011)

会议地点: 成都

会议语种:英文

页码: 907-910

在线出版日期: 2011-10-24（万方平台首次上网日期，不代表论文的发表时间）