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| 弹载SAR图像几何失真校正误差分析 | |
| 引用本文： | 俞根苗,邓海涛,吴顺君.弹载SAR图像几何失真校正误差分析[J].电子与信息学报,2007,29(2):383-386. |
| 作者姓名： | 俞根苗 邓海涛 吴顺君 |
| 作者单位： | 1. 西安电子科技大学雷达信号处理国家重点实验室,西安,710071;华东电子工程研究所,合肥,230031 2. 华东电子工程研究所,合肥,230031 3. 西安电子科技大学雷达信号处理国家重点实验室,西安,710071 |
| 摘 要： | 该文主要讨论了弹载侧视合成孔径雷达(SAR)在导弹下降飞行过程中所获取图像的几何失真校正及其误差分析问题。由于要求成像的过程中，弹体的高度在不断减小，SAR图像存在严重的几何失真,该文根据成像过程中的几何关系，说明了采用子孔径RD算法获得的SAR图像几何失真的校正方法，着重对校正后图像的几何失真误差进行了分析，通过成像处理仿真试验验证了几何校正方法以及误差分析的正确性。 |
| 关 键 词： | 合成孔径雷达 几何失真校正 误差分析 弹载SAR |
| 文章编号： | 1009-5896（2007）02-0383-04 |
| 收稿时间： | 2005-08-01 |
| 修稿时间： | 2006-06-13 |
Error Analysis of Geometric Distortion Correction of Missile-Borne SAR Image |
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| Yu Gen-miao,Deng Hai-tao,Wu Shun-jun.Error Analysis of Geometric Distortion Correction of Missile-Borne SAR Image[J].Journal of Electronics & Information Technology,2007,29(2):383-386. | |
| Authors: | Yu Gen-miao Deng Hai-tao Wu Shun-jun |
| Affiliation: | National Key Lab of Radar Signal Processing, Xidian University, Xi’ an 710071, China; East China Research Institute of Electronic and Engineering, Hefei 230031, China |
| Abstract: | The paper concerns the error analysis of image geometric distortion correction for missile-borne side-looking SAR. Because of the decrease of altitude during SAR operation, the SAR image obtained by common used imaging algorithm is seriously distorted. In the paper, the geometric distortion correction method of the SAR image related to subaperture RD algorithm is presented. Especially, the errors of geometric distortion correction are analyzed. The effectiveness of the method and error analysis of the geometric distortion correction are demonstrated by simulation. |
| Keywords: | Synthetic Aperture Radar(SAR) Geometric distortion correction Error analysis Missile borne SAR |
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