电波科学学报2011，Vol.26Issue(5)：881-887,7.
综合孔径辐射计反演成像算法研究
Image Reconstruction and Inversion Algorithm of Synthetic Aperture Radiometer
晁坤 1陈后财 2赵振维 2吴振森2
作者信息
- 1. 西安电子科技大学,陕西西安710071
- 2. 中国电波传播研究所,山东青岛266107
- 折叠
摘要
Abstract
High efficiency image reconstruction and inversion algorithm is one of the key technologies for synthetic aperture radiometer. An improved method using subdivision of viewport is proposed for image reconstruction and inversion, in which the viewport is fractionized to a number of sub-viewport of rectangle areas in the algorithm, and the brightness temperature of sub-viewport is retrieved with method of Fourier transform relation between brightness temperature and Visibility Function. The theoretical proof and simulation analysis show that the effects of unavoidable system errors on image reconstruction and inversion are minimized by this method. Comparing with the BG algorithm indicates the validity and effectiveness of the new algorithm, and the computing speed is faster.关键词
综合孔径/辐射计/反演成像/视场细分Key words
synthetic aperture/radiometer/image reconstruction and inversion/viewport subdivision分类
信息技术与安全科学引用本文复制引用
晁坤,陈后财,赵振维,吴振森..综合孔径辐射计反演成像算法研究[J].电波科学学报,2011,26(5):881-887,7.
