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An improved Goldstein radar interferogram filter
Author(s): 
Pages: 51-55
Year: Issue:  11
Journal: Geotechnical Investigation & Surveying

Keyword:  InSAR Goldstein滤波 相位滤波 相干性 视数;
Abstract: 干涉图的相位噪声是相干性和视数的函数。因此,一个好的干涉图滤波器应同时考虑相干性和视数的影响。本文对在干涉图滤波中广泛应用的Goldstein滤波器进行改进,通过视数的引入,对滤波器的滤波参数进行修正,大大增强了滤波的自适应性。模拟数据和真实数据的验证说明新的滤波器在滤波效果上有明显的改善,具有更好的稳健性。
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