Optimized Implementation of Onboard Real-time Imaging for High-resolution Space-borne SAR

被引：1
|
作者：
Min, He [1 ]
Zhou, Yinqing [1 ]
Chen, Jie [1 ]
Li, Chunsheng [1 ]
Yu, Ze [1 ]
Pengbo, Wang [1 ]
机构：
[1] Beijing Univ Aeronaut & Astronaut, Sch Elect & Informat Engn, Beijing 100083, Peoples R China
来源：
2006 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM, VOLS 1-8 | 2006年
关键词：
space-borne synthetic aperture aadar; real-time imaging; high-resolution; optimization;
D O I：
10.1109/IGARSS.2006.817
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
The image formation process of a high-resolution space-borne synthetic aperture radar is a demanding task with high computation and precision requirement. When it is implemented on a restricted onboard real-time DSP processing system, the algorithm and software optimizations are essential to the success of the implementation. We implemented the capability of real-time processing for, the raw data of a type of high-resolution space-borne SAR on an onboard DSP processing system. The refined Chirp Scaling algorithm is parallelized and mapped into the system. Approaches have been presented to improve the computation speed and precision, based on academic and mathematic analysis. Additionally, the formula of the refined Chirp Scaling is re-deduced, and the system is tested and verified by the simulated space-borne SAR and Radarsat-I raw data.
引用
收藏
页码：3180 / 3183
页数：4
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