A hybrid adaptive method for interferometric phase filtering based on the mode and median filter

Qi Zhang, Tiandong Liu, Zegang Ding, Tao Zeng, Teng Long

科研成果: 书/报告/会议事项章节会议稿件同行评审

1 引用 (Scopus)

摘要

In this paper, a creative hybrid adaptive filtering algorithm is designed to combine a modified mode filter with an adaptive median filter for the suppression of interferometric phase noise which is a quality insurance of the following phase unwrapping operation. This combination provides the hybrid filtering algorithm with remarkable flexibility to terrain. At first, this paper presents a modified mode filter with an adaptive shortest sub-interval estimator. Then, it uses the mode filtering result as the variable local phase center of the median filter and improves it with an adaptive filtering window varying with the residue density and correlation coefficient. Finally, a hybrid adaptive filtering algorithm is proposed for the reduction of interferometric phase noise. The studies utilize the simulated Peak data and the real Ayers Rock data as data support. Through analyzing the phase residues and the PSD values of the filtering results, we finally prove the validity of this method.

源语言英语
主期刊名2015 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2015 - Proceedings
出版商Institute of Electrical and Electronics Engineers Inc.
2971-2974
页数4
ISBN(电子版)9781479979295
DOI
出版状态已出版 - 10 11月 2015
活动IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2015 - Milan, 意大利
期限: 26 7月 201531 7月 2015

出版系列

姓名International Geoscience and Remote Sensing Symposium (IGARSS)
2015-November

会议

会议IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2015
国家/地区意大利
Milan
时期26/07/1531/07/15

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