The Modified Antenna Pattern Phase Error Estimation Method for Multichannel SAR Systems in Azimuth

摘要：

　　With the combination of digital beamforming(DBF)processing,multichannel synthetic aperture radar(SAR)systems in azimuth promise well in high-resolution and wide-swath imaging,whereas channel errors especially phase errors have a great influence on image quality.This paper brings up a modified antenna pattern method which utilizes the statistic covariance matrix and the antenna pattern to estimate adjacent channel phase errors first,and then phase errors relative to the referenced channel can be calculated more accurately.The computational load of this method is little and it can achieve good performance even under nonuniform sampling.The experiments with real measured data demonstrate the effectiveness and robustness of the proposed method.

关键词： Multichannel SAR phase error estimation modified antenna pattern method nonuniform sampling

作者: Tan Zhen-ya He Feng

作者单位: School of Electronic Science and Engineering,National University of Defense Technology,Changsha 410073

会议类型: 国际会议

会议名称: 2017 6th International Conference on Advanced Materials and Computer Science (ICAMCS 2017) 2017年第六届先进材料与计算机科学国际会议(ICAMCS 2017)

会议地点: 郑州

会议语种:英文

页码: 1-10

在线出版日期: 2017-04-29（万方平台首次上网日期，不代表论文的发表时间）