电子学报2011，Vol.39Issue(9)：2212-2216,封3,6.
一种基于干涉条纹频率的星载InSAR基线估计新方法
A Novel Baseline Estimation Approach of Spaceborne InSAR Based on Interferometric Fringe Frequency
徐华平 1朱玲凤 1刘向华 1陈怡菲1
作者信息
- 1. 北京航空航天大学电子信息工程学院,北京100191
- 折叠
摘要
Abstract
We proposed a novel high precision spaceborne InSAR baseline estimation approach based on interferometric fringe frequency which makes the improvements from two aspects:the baseline calculation formula and the fringe frequency estimation precision. The accurate mathematic relationship between the baseline parameters and the interferometric fringe frequency was deduced considering the earth curvature. Also the Semi-Newton iterative method was introduced to estimate the fringe frequency of each pixel in the complex interferogram. Furthermore, the frequency evaluation was processed by the linear fitting to suppress the noise and the high precision fringe frequency was obtained. With the accurate frequency and the deduced baseline calculation formula, the baseline estimation precision was improved to centimeter.Finally,the computer simulation was employed to confirm the new baseline estimation approach.关键词
干涉合成孔径雷达/基线估计/干涉条纹频率/半牛顿迭代法/线性拟合Key words
interferometric synthetic aperture radar (InSAR)/ baseline estimation/ interferometric fringe frequency/ semi-Newton iterative method/ linear fitting分类
信息技术与安全科学引用本文复制引用
徐华平,朱玲凤,刘向华,陈怡菲..一种基于干涉条纹频率的星载InSAR基线估计新方法[J].电子学报,2011,39(9):2212-2216,封3,6.
