SAR interferogram filtering with 2D Vondrák filter

Xiaoli Ding; Zhiwei Li; Dawei Zheng; Cheng Huang; Weibao Zou

doi:10.1109/IGARSS.2005.1526753

SAR interferogram filtering with 2D Vondrák filter

Xiaoli Ding, Zhiwei Li, Dawei Zheng, Cheng Huang, Weibao Zou

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

5 Citations (Scopus)

Abstract

Vondrák filter Is a unique technique for processing data that aims to balance between data "fidelity" and "smoothness". It can therefore preserve to certain extent the original attribute of observational data while at the same time smooth out the noise. 1D Vondrák filter has been widely used In such fields as astronomy, geophysics and geodynamics. We extend In this paper the commonly used 1D Vondrák filter Into 2D, and apply the filter thus obtained to filtering radar Interferograms. In doing this, the real and the Imaginary parts of a SAR interferogram are filtered separately, and the filtering of the interferometric phases Is achieved by calculating the argument (?) of the filtered interferogram. Experimental results obtained with simulated datasets show that the new filter can eliminate up to about 78% of the noise In the interferogram.

Original language	English
Title of host publication	25th Anniversary IGARSS 2005
Subtitle of host publication	IEEE International Geoscience and Remote Sensing Symposium
Pages	4825-4828
Number of pages	4
Volume	7
DOIs	https://doi.org/10.1109/IGARSS.2005.1526753
Publication status	Published - 1 Dec 2005
Event	2005 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2005 - Seoul, Korea, Republic of Duration: 25 Jul 2005 → 29 Jul 2005

Conference

Conference	2005 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2005
Country/Territory	Korea, Republic of
City	Seoul
Period	25/07/05 → 29/07/05

ASJC Scopus subject areas

Computer Science Applications
General Earth and Planetary Sciences

More information

10.1109/IGARSS.2005.1526753

Cite this

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author = "Xiaoli Ding and Zhiwei Li and Dawei Zheng and Cheng Huang and Weibao Zou",

year = "2005",

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Ding, X, Li, Z, Zheng, D, Huang, C & Zou, W 2005, SAR interferogram filtering with 2D Vondrák filter. in 25th Anniversary IGARSS 2005: IEEE International Geoscience and Remote Sensing Symposium. vol. 7, 1526753, pp. 4825-4828, 2005 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2005, Seoul, Korea, Republic of, 25/07/05. https://doi.org/10.1109/IGARSS.2005.1526753

SAR interferogram filtering with 2D Vondrák filter. / Ding, Xiaoli; Li, Zhiwei; Zheng, Dawei et al.
25th Anniversary IGARSS 2005: IEEE International Geoscience and Remote Sensing Symposium. Vol. 7 2005. p. 4825-4828 1526753.

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

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T1 - SAR interferogram filtering with 2D Vondrák filter

AU - Ding, Xiaoli

AU - Li, Zhiwei

AU - Zheng, Dawei

AU - Huang, Cheng

AU - Zou, Weibao

PY - 2005/12/1

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AB - Vondrák filter Is a unique technique for processing data that aims to balance between data "fidelity" and "smoothness". It can therefore preserve to certain extent the original attribute of observational data while at the same time smooth out the noise. 1D Vondrák filter has been widely used In such fields as astronomy, geophysics and geodynamics. We extend In this paper the commonly used 1D Vondrák filter Into 2D, and apply the filter thus obtained to filtering radar Interferograms. In doing this, the real and the Imaginary parts of a SAR interferogram are filtered separately, and the filtering of the interferometric phases Is achieved by calculating the argument (?) of the filtered interferogram. Experimental results obtained with simulated datasets show that the new filter can eliminate up to about 78% of the noise In the interferogram.

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SAR interferogram filtering with 2D Vondrák filter

Abstract

Conference

ASJC Scopus subject areas

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