基于连续运动几何的星载SAR定位方法

Q2 Physics and Astronomy 雷达学报 Pub Date : 2013-02-01 DOI:10.3724/SP.J.1300.2013.20072

Xiaolan Qiu, Chuan-zhao Han, Jia-yin Liu

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引用次数: 11

摘要

③(中国科学院电子学研究所，北京100190)摘要:地理定位是合成孔径雷达(SAR)数据处理中非常重要的一步。地理定位的精度严重影响着SAR图像的应用。分析了传统的“走走停停”近似对SAR定位的影响，建立了实际连续运动构型下的距离-多普勒方程。它还提供了一种求解方程的简化方法。在北京地区的实际SAR数据上进行了仿真和地理定位实验，验证了所提方法的正确性。

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A Method for Spaceborne SAR Geolocation Based on Continuously Moving Geometry

③ (Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China) Abstract: Geolocation is a very important step in Synthetic Aperture Radar (SAR) data processing. The precision of geolocation severely affects the applications of SAR images. This paper analyzes the influences on SAR geolocation caused by the traditional "stop-go" approximation, and establishes the range-Doppler equations for the real continuously moving configuration. It also provides a simplified way of solving the equations. Simulations and geolocation experiments on real SAR data of the Beijing area validate the proposed method and show the correctness of the analysis.

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来源期刊

雷达学报 Physics and Astronomy-Instrumentation

CiteScore

4.10

自引率

0.00%

发文量

882

期刊介绍： Journal of Radars was founded in 2012 by the Institute of Space and Astronautical Information Innovation of the Chinese Academy of Sciences (formerly the Institute of Electronics) and the China Radar Industry Association (CRIA), which is located in the high-end academic journal and academic exchange platform in the field of radar, and is committed to promoting and leading the scientific and technological development in the field of radar. The journal can publish Chinese papers and English papers, and is now a bimonthly journal. Journal of Radars focuses on theory, originality and foresight, and its scope of coverage mainly includes: radar theory and system, radar signal and data processing technology, radar imaging technology, radar identification and application technology. Journal of Radars has been included in domestic core journals and foreign Scopus, Ei and other databases, and was selected as ‘China's high-quality science and technology journals’, and ranked the first in the category of electronic technology and communication technology in the ‘Chinese Core Journals List (2023 Edition)’.