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针对距离向处理的SAR自适应成像算法
引用本文:马磊,刘兴钊. 针对距离向处理的SAR自适应成像算法[J]. 信息技术, 2008, 32(1): 45-48
作者姓名:马磊  刘兴钊
作者单位:上海交通大学电子系,上海,200240
摘    要:
在研究传统SAR成像处理过程的基础上,将自聚焦的概念加以拓广,提出了一种自适应成像算法.该算法摒弃了传统自聚焦算法对距离徙动已被完全纠正的假设,将自适应处理的时机前移到距离徙动校正阶段,通过修正若干系统参数使得距离徙动被完美地校正,这些被修正的参数将被应用到后续的处理过程中.该算法具有比传统自聚焦算法更好的成像精度及效果,令输出图像具有更好的相位保持特性.

关 键 词:SAR C_S  自聚焦  自适应  距离向  处理过程  自适应  成像算法  SAR image  range  focusing  adaptive algorithm  特性  相位保持  图像  输出  效果  成像精度  应用  系统参数  徙动校正  修正  前移  时机
文章编号:1009-2552(2008)01-0045-04
收稿时间:2007-07-13
修稿时间:2007-07-13

A kind of adaptive algorithm focusing on range for SAR image
MA Lei,LIU Xing-zhao. A kind of adaptive algorithm focusing on range for SAR image[J]. Information Technology, 2008, 32(1): 45-48
Authors:MA Lei  LIU Xing-zhao
Affiliation:MA Lei,LIU Xing-zhao (Electronic Engineering Department,Shanghai Jiaotong University,Shanghai 200240,China)
Abstract:
On the basis of the study on the traditional processing of SAR image-formation, this paper derives a new adaptive algorithm from the concept of auto-focus algorithms, It discards the indefensible assumption that the range cell migration has been completely corrected in the traditional auto-focus algorithms and that the corrected parameter will be taken into use in the following process. Of course, the new algorithm has achieved better result of the image quality and has a good phase preservation .
Keywords:SAR C _ S   auto-focus   adaptive
本文献已被 CNKI 维普 万方数据 等数据库收录!
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