机载双天线干涉SAR非线性近似自配准成像算法

陈立福; 韦立登; 向茂生; 韩松涛

doi:10.3724/SP.J.1146.2009.01162

机载双天线干涉SAR非线性近似自配准成像算法

doi: 10.3724/SP.J.1146.2009.01162

陈立福^{①② 韦立登,},
韦立登,
向茂生,
韩松涛

基金项目:

国家973计划项目(2009CB724003)和国家863计划项目(2007AA120302)资助课题

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出版历程
- 收稿日期: 2009-09-03
- 修回日期: 2010-01-27
- 刊出日期: 2010-09-19

Auto-registration Imaging Algorithm of Non-linear Approximation for Airborne Dual-antenna InSAR

摘要

摘要: 为了提高机载双天线干涉SAR系统的干涉处理速度而又不损失配准精度，该文提出了非线性距离向ECS自配准成像算法。该算法通过对两天线视角不同引起的路径差的非线性近似，在成像处理阶段实现了干涉图像对在距离向的高精度自配准。该算法在产生干涉相位时较传统算法在保持较高配准精度的情况下显著提高了运算速度。本文通过对仿真数据、实际数据的处理以及系统参数对算法配准精度影响的仿真分析，证明了该算法的有效性。
- 干涉合成孔径雷达 /
- 成像算法 /
- ECS /
- 配准 /
- 非线性
Abstract: In order to improve the speed of interferometric processing for the airborne dual-antenna interferometric Synthetic Aperture Radar (SAR) system and also remain the accuracy of the registration, the non-linear approximation in the range Extended Chirp Scaling (ECS) auto-registration imaging algorithm is presented in the paper. This algorithm realizes the accurate auto-registration in the range in course of the imaging processing by the non-linear approximation to the path difference caused by the different visual angles of the two antennas. It increases the speed of generating the interferometric phase largely and preserves the higher accuracy of the registration meanwhile. Through the processing of the simulation data and the real interferometric data and the analysis of the impact of the systemic parameters on the accuracy of registration, the validity of the algorithm presented in the paper is proved.
- InSAR /
- Imaging algorithm /
- ECS (Extended Chirp Scaling) /
- Registration /
- Non-linear

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吕金建, 文贡坚, 李德仁, 王继阳. 一种新的基于空间关系的特征匹配方法[J]. 测绘学报, 2008, 37(3): 367-373.L Jin-jian, Wen Gong-jian, Li De-ren, and Wang Ji-yang. A new method based on spatial relations for feature matching[J]. Acta Geodaetica et Cartographica Sinica, 2008, 37(3): 367-373.[2]王建文, 李青. 基于点和边缘相结合特征提取的图像配准算法[J]. 计算机工程与设计, 2009, 30(4): 928-930.Wang Jian-wen and Li Qing. Image registration algorithm based on extraction of feature point and edge [J]. Computer Engineering and Design, 2009, 30(4): 928-930.[3]刘广, 郭华东, 范景辉. 基于外部DEM的InSAR图像配准方法研究[J].遥感技术与应用.2008, 23(1):72-76Liu Guang, Guo Hua-dong, and Fan Jing-hui. DEM based SAR image registration method [J]. Remote Sensing Technology and Application, 2008, 23(1): 72-76.[4]Moreira A, Mittermayer J, and Scheiber R. Extended chirp scaling algorithm for air- and spaceborne SAR data processing in stripmap and scanSAR imaging modes [J].IEEE Transactions on Geoscience and Remote Sensing.1996, 34(5):1123-1135[5]韦立登, 李绍恩, 向茂生, 吴一戎. 一种新的双天线干涉SAR自配准成像算法[J]. 电子与信息学报, 2004, 26(增刊): 237-243.[6]Wei Li-deng, Li Shao-en, Xiang Mao-sheng, and Wu Yi-rong. A novel imaging algorithm with automatic registration for dual-antenna InSAR [J].Journal of Electronics Information Technology.2004, 26(Suppl.):237-243[7]Cumming I G.[J].Wong F H著. 洪文，胡东辉等译. 合成孔径雷达成像算法与实现[M]. 第1版, 北京: 电子工业出版社.2007,:-[8]Chen Li-fu, Xiang Mao-sheng, Wei Li-deng, and Han Song-tao. An Airborne interferometric qucik-look processing algorithm. IET International Radar Conference 2009 [C], Guilin China, April 20-22, 2009: 669-673.[9]Qiu Xiao-lan, Hu Dong-hui, and Ding Chi-biao. Non-linear chirp scaling algorithm for one-stationary bistatic SAR [C]. 1st Asian and Pacific Conference, Huangshan China, Nov. 5-9, 2007: 111-114.

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