电子学报2011，Vol.39Issue(3)：705-709,5.
一种基于UPF的干涉SAR相位展开方法
Phase Unwrapping: An Unscented Particle Filtering Approach
摘要
Abstract
This paper presents a phase unwrapping algorithm based on the unscented particle filter ( UPF) for synthetic-aperture radar (SAR) interferometry. This method provides independence from noise statistics and is not constrained by the nonlinearity of the problem. This technique performs simultaneously noise filtering and phase unwrapping by the optimal data fusion approach. In addition,the importance density funcfion is integrated with the latest observation information and is more in line with the postefior probility distribution of true phase by using an unscented Kaiman filter (UKF) to carry out particle update, which also enhances the accuracy and the efficiency of the proposed method. Simulation and real data processing results validate the effectiveness of proposed method, and show a significant improvement with respect to the EKFPU algorithm and other conventional unwrapping algorithms in some situations.关键词
不敏粒子滤波/路径跟踪/合成孔径雷达干涉测量Key words
unscented particle filtering/path-following strategy/SAR interferometry分类
信息技术与安全科学引用本文复制引用
谢先明,皮亦鸣,彭保..一种基于UPF的干涉SAR相位展开方法[J].电子学报,2011,39(3):705-709,5.基金项目
国家自然科学基金(No.60772143) （No.60772143）
