The improvement for baran phase filter derived from unbiased InSAR coherence

Mi Jiang, Xiaoli Ding, Zhiwei Li, Xin Tian, Wu Zhu, Chisheng Wang, Bing Xu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

20 Citations (Scopus)

Abstract

We present an improvement for the adaptive Goldstein phase filter guided by interferometric synthetic aperture radar (InSAR) coherence (Baran phase filter). The proposed method addresses the under-filtering over incoherent area where the filter parameter alpha is underestimated by the biased coherence estimation. Through correcting the overestimate of the sample coherence, the correct filter parameter alpha is derived and the performance of the filter is optimized. Experimental results from different data sets demonstrate the advantages of the approach.
Original languageEnglish
Article number6712049
Pages (from-to)3002-3010
Number of pages9
JournalIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Volume7
Issue number7
DOIs
Publication statusPublished - 1 Jan 2014

Keywords

  • Baran filter
  • coherence
  • interferometric synthetic aperture radar (InSAR)
  • unbiased coherence estimator

ASJC Scopus subject areas

  • Computers in Earth Sciences
  • Atmospheric Science

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