西安电子科技大学学报（自然科学版）2018，Vol.45Issue(1)：30-34,116,6.DOI:10.3969/j.issn.1001-2400.2018.01.006
方位多通道HRWS SAR多普勒中心稳健估计算法
Robust Doppler centroid estimation method for multichannel HRWS SAR
摘要
Abstract
In multichannel high-resolution and wide-swath( HRWS) synthetic aperture radar(SAR) systems,a novel method for the Doppler centroid estimation is proposed. First,by exploiting temporal characteristics of multichannel SAR data,mathematical expressions for channel phase biases on the Doppler centroid are established.Second,based on the fact that phase biases decrease the signals inside the Doppler bandwidth, the Doppler centroid could be estimated by maximizing the energy inside the Doppler bandwidth.Experimental results show that the proposed method has an estimation accuracy similar to that of the spatial cross-correlation coefficient method but has more robustness.关键词
合成孔径雷达/多普勒中心/多通道Key words
synthetic aperture radar/Doppler centroid/multichannel分类
信息技术与安全科学引用本文复制引用
房超,刘艳阳,李真芳,任伟,陈筠力..方位多通道HRWS SAR多普勒中心稳健估计算法[J].西安电子科技大学学报（自然科学版）,2018,45(1):30-34,116,6.基金项目
国家自然科学基金资助项目(61471276,41371439,61601298,61671355) （61471276,41371439,61601298,61671355）
