Acta Geodaetica et Cartographica Sinica >

2016 , Vol. 45 >Issue 10: 1200 - 1209

DOI: https://doi.org/10.11947/j.AGCS.2016.20150457

Improved Adaptive Goldstein Interferogram Filter Based on Second Kind Statistics

  • ZHAO Wensheng ,
  • JIANG Mi ,
  • HE Xiufeng
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  • School of Earth Sciences and Engineering, Hohai University, Nanjing 211100, China

Received date: 2015-09-10

  Revised date: 2016-07-28

  Online published: 2016-11-08

Supported by

The National Natural Science Foundation of China (Nos. 41404009;41274017);The National Key Technology Research and Development Program(No.2015BAB07B10);The Surveying and Mapping Basic Research Program of National Administration of Surveying, Mapping and Geoinformation (No.15-01-04);The Transportation Technology and Achievements Transformation Project of Jiangsu Province(No.16Y08)

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Abstract

Interferometric filtering is one of the most important procedures in InSAR data processing as it refers to the quality of phase observations and the final products. A variant under the framework of Goldstein filter is presented in this paper, which is based on the robust coherence estimator from the second kind statistics. Compared with the state-of-the-art, the significant advantage of the new method is that more accurate filtering parameter alpha can be deduced and therefore better performance of the Goldstein filtering can be expected. Experimental results from both simulation and real Envisat ASAR data demonstrate the value of the method.

Key words： Goldstein filter; phase noise; second kind statistics; coherence

Cite this article

ZHAO Wensheng , JIANG Mi , HE Xiufeng . Improved Adaptive Goldstein Interferogram Filter Based on Second Kind Statistics[J]. Acta Geodaetica et Cartographica Sinica, 2016 , 45(10) : 1200 -1209 . DOI: 10.11947/j.AGCS.2016.20150457

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