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Effective velocity estimation for space-borne SAR based on chirp scaling algorithm
Shi, X.; Zhang, Y. H.; Zhai, W. S.; 北京8701信箱
Department其他
Source Publication2007 1st asian and pacific conference on synthetic aperture radar proceedings
2007
Pages427-430
Language英语
ISBN978-1-4244-1187-0
AbstractEffective velocity is an important parameter for space-borne SAR imaging using chirp scaling algorithm. The precision of effective velocity estimation has strong impact on the quality of final SAR image. In this paper, two conventional effective velocity estimation methods and their intrinsic defects, such as inaccuracy and excessive dependence of satellite track parameters are firstly discussed and the reason why defects exist is also analyzed. Then a new algorithm is proposed for effective velocity estimation. The algorithm is based on iterative calculations and is independent of satellite track parameters; it can estimate effective velocity accurately by using variance of image as cost function. RADARSAT-1 image of Vancouver experimental data has been processed to demonstrate the effect of the proposed algorithm.
Conference Name1st Asian and Pacific Conference on Synthetic Aperture Radar Proceedings
Conference Date2007
Conference PlaceHuangshan City, PEOPLES R CHINA
Indexed ByCPCI
Document Type会议论文
Identifierhttp://ir.nssc.ac.cn/handle/122/1639
Collection其他部室
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
Shi, X.,Zhang, Y. H.,Zhai, W. S.,et al. Effective velocity estimation for space-borne SAR based on chirp scaling algorithm[C]. NEW YORK:Ieee,2007:427-430.
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