收稿日期: 2009-03-13
修回日期: 2009-09-16
网络出版日期: 2010-01-15
An airborne SAR motion compensation algorithm based on array scanning and its implementation
Received date: 2009-03-13
Revised date: 2009-09-16
Online published: 2010-01-15
李欣伟 , 张平 , 朱磊 . 一种基于相位扫描的机载SAR运动补偿算法及实现[J]. 中国科学院大学学报, 2010 , 27(1) : 70 -75 . DOI: 10.7523/j.issn.2095-6134.2010.1.010
Phased array radar is the main direction in the development of airborne SAR, and the motion compensation system is essential to the airborne SAR system. By deploying the coordinate mapping method, the target beam under the earth coordinate system is mapped into the antenna platform coordinate system and converted to the antenna array element phase shift which controls the beam. The airborne SAR motion compensation is then implemented. The algorithm is implemented by using DSP and FPGA. The experimental results show that the designed hardware and software are reliable.
Key words： phased array; airborne SAR; motion compensation; DSP; FPGA
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