质量图引导的相位解缠在不同地形的对比分析

Comparison Among Different Quality-Guided Phase Unwrapping in Different Terrain

质量图引导的相位解缠算法是一种路径跟踪的算法,本文在三种经典相位质量图分析基础上,分别应用不同质量图引导的相位解缠算法对陡峭地形和平坦地形条件下的InSAR数据进行相位解缠实验,实验结果表明,对于地形陡峭的数据选取相位导数方差得到的结果最可靠,而地形平坦数据选取伪相干系数图能够得到较为精确的结果。

Quality-guided phase unwrapping algorithm is one of the path-tracking algorithms. In this paper, based on the analysis of the three commonly phase quality maps, the quality -guided phase unwrapping algorithm are applied to take experiments of InSAR data in the steep terrain and flat terrain conditions. Experimental results show that it is the most reliable for steep terrain data to select the phase derivative variance to get the results for, flat terrain data selection the pseudo- coherent diagram can get more accurate results