平飞模式双站SAR成像算法研究
doi: 10.3724/SP.J.1146.2006.00630
The Imaging Algorithm of Bistatic SAR with Parallel Track
-
摘要: 双站SAR的成像技术是机载双站SAR的一个关键问题，该文首先建立了平飞模式的双站模型，然后在双站模型等效到单站的基础上，对双站SAR成像方法进行了研究，分别给出了平飞正侧视的CS双站成像算法和平飞斜侧视模式时的ECS双站成像算法，该等效方法能够解决平飞模式的双站SAR成像问题，最后通过计算机仿真，验证了该算法的有效性。
-
关键词:
- 双站SAR;ECS算法;平飞
Abstract: The development of bistatic focusing algorithm is a pivotal issue, which is still in progress and not sufficiently solved. This paper firstly describes the special case of equal velocity vectors and parallel flight paths of transmitter and receiver, and then makes detailed and mathematical study on the approximate bistatic-to-monostatic application. Based on the Bistatic-To-Monostatic Application (BTMA), the bistatic imaging can be processed with a Standard SAR Processor, and then the conventional CS, ECS algorithm are also applicable to the bistatic imaging, which are all testified by the simulation in the paper. As a result, based on BTMA, the imaging of the bistatic SAR with parallel track can be solved. -
汤子跃, 张守融. 双站合成孔径雷达系统原理. 北京: 科学出版社, 2003: 10-20. Tang Zi-yue and Zhang Shou-rong. Bistatic SAR System Theory. Beijing: Science Publishing House, 2003: 10-20.[2]Ender J H G. Signal theoretical aspects of bistatic SAR. IEEE International Geosci. and Remote Sensing Symp., Tolouse, July 2003, 3: 1438-1441.[3]Rigling B D and Moses R L. Polar format algorithm for bistatic SAR[J].IEEE Trans. on Aerosp. Electron. Syst.2004, 40(4):1147-1159[4]Soumekh M. Wide-bandwidth continuous-wave monostatic/ bistatic synthetic aperture radar imaging. In Proceedings of International Conference on Image Processing, Chicago, Illinois, USA, 1998, 3: 361-365.[5]保铮, 邢孟道, 王彤. 雷达成像技术. 北京: 电子工业出版社, 2005: 123-160. Bao Zheng, Xing Meng-dao, and Wang Tong. Technique of Radar Imaging. Beijing: Electronic Industry Publishing House, 2005: 123-160.[6]Keith Raney R, Rung H, Bamler R, Cumming I, and Wong F. Precision SAR processing using chirp scaling[J].IEEE Trans. on Geoscience and Remote Sensing.1994, 32(4):786-799[7]Moreira A, Scheiber R, and Mittermayer J. Extended Chirp Scaling Algorithm for Air- and Spaceborne SAR Data Processing in Stripmap and ScanSAR Imaging Modes, IEEE Trans[J].on Geoscience and Remote Sensing.1996, 34(5):1123-1136 -
计量
- 文章访问数: 2945
- HTML全文浏览量: 54
- PDF下载量: 732
- 被引次数: 0
下载:
