收稿日期: 2010-06-07
修回日期: 2011-03-16
网络出版日期: 2012-01-15
An improved focusing method for real time SAR
Received date: 2010-06-07
Revised date: 2011-03-16
Online published: 2012-01-15
张峰会 , 王岩飞 . 基于脉冲积累的SAR实时聚焦算法[J]. 中国科学院大学学报, 2012 , 29(1) : 136 -140 . DOI: 10.7523/j.issn.2095-6134.2012.1.020
For practical SAR systems, the motion errors of radar platform lead to the azimuth phase history errors which lead to defocus images. We propose a modified autofocus method which applies the delay and remove algorithm for more effectively estimating the real phase history based on azimuth data. With this method a better focused image is achieved. The algorithm is efficient for real-time SAR system. The focus processing results of SAR measured data show that the proposed method is effective.
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