大地测量与地球动力学2011，Vol.31Issue(6)：151-154,158,5.
InSAR最小二乘相位解缠权重确定的一种新方法
A NEW METHOD OF WEIGHTED CHOICE IN INSAR LEAST SQUARES UNWRAPPING
摘要
Abstract
The decoherence phenomena such as Low-SNR radar signal, shadows and layover caused by topography etc, causing phase data discontinuous, makes the result of unwrapping phase inaccurate or completely wrong. On the basis of the analysis of influencing factors to weighted choice, a new method to choose the weightes according to the measure of confidence in frequency domain was developed. The experiments show the defect of sub-estimate to the slope of least squares method can be well overcome. It is proved that this method has good rational and stable performance.关键词
最小二乘相位解缠/去相干/相位质量区域/相位坡度欠估计/权重Key words
least squares phase unwrapping/decoherence/phase quality areas/sub-estimate to the slope/weight分类
天文与地球科学引用本文复制引用
刘伟科,刘国林..InSAR最小二乘相位解缠权重确定的一种新方法[J].大地测量与地球动力学,2011,31(6):151-154,158,5.基金项目
国家自然科学基金(40874001) （40874001）
海岛(礁)测绘技术国家测绘局重点实验室项目(2010A01) （礁）
