测试技术学报2011，Vol.25Issue(5)：406-413,8.DOI:10.3969/j.issn.1671-7449.2011.05.007
星载分离相位中心方位多波束SAR方位向非均匀采样
Study on Azimuth Non-uniform Sampling of Spaceborne DPC MAB SAR
摘要
Abstract
The displaced phase centre(DPC) multiple azimuth beam (MAB) approach allows simultaneous wide swath and high resolution synthetic aperture radar (SAR) imaging from a spaceborne system. In this paper, it is pointed out that the azimuth non-uniform sampling is a necessity of spaceborne DPC-MAB-SAR. And fault targets appear due to the effects of non-uniform sampling. Subsequently, several algorithms are presented to eliminate the effects. Finally it is concluded that the method of filter group is the fittest algorithm by the comparisons of all adopted algorithms on image quality and calculation amount.关键词
星载/分离相位中心/方位多波束/合成孔径雷达/方位向非均匀采样/滤波器组Key words
spaceborne/ displaced phase centre(DPC)/ multiple azimuth beam(MAB)/ synthetic aperture ra-dar(SAR)/ azimuth non-uniform sampling/ filter group分类
信息技术与安全科学引用本文复制引用
范强,刘树立..星载分离相位中心方位多波束SAR方位向非均匀采样[J].测试技术学报,2011,25(5):406-413,8.
