太赫兹科学与电子信息学报Issue(2)：213-217,5.DOI:10.11805/TKYDA201402.0213
2种多通道SAR/GMTI相位误差估计方法
Two phase error estimation methods for multi-channel SAR/GMTI systems
摘要
Abstract
Two methods are proposed to estimate channel phase errors for multi-channel Synthetic Aperture Radar(SAR)/Ground Moving Target Indication(GMTI) systems. The first method is based on the linear relationship between the clutter eigenvectors and their steering vectors. For the second method, the received echoes are resampled in azimuth, and the channel errors are estimated based on the fact that the space spanned by the signal eigenvectors (namely the signal subspace) is the same as that spanned by the practical steering vectors. The simulated and ground-based real data demonstrate the validity of the two methods, and show that the performance of the second method is better.关键词
多通道/合成孔径雷达/运动目标检测/误差估计Key words
multi-channel/Synthetic Aperture Radar/Ground Moving Target Indication/error estimation分类
信息技术与安全科学引用本文复制引用
吴明宇,杨桃丽,吴顺君,李真芳..2种多通道SAR/GMTI相位误差估计方法[J].太赫兹科学与电子信息学报,2014,(2):213-217,5.基金项目
国家自然科学基金资助项目(41001282；40871205) （41001282；40871205）
