Proceedings of the 2013 the International Conference on Remote Sensing, Environment and Transportation Engineering (RSETE 2013)

<Previous Article In Volume
Next Article In Volume>

Identifying of Noise Type and Estimating of Noise Level for InSAR Interferogram in the Wavelet Domain

Authors
Guolin Cai, Guoxiang Liu, Aoli Zhang, Meiling Sun, Jiafa Tang, Shuaiyi Zhang
Corresponding Author
Guolin Cai
Available Online August 2013.
DOI
10.2991/rsete.2013.88How to use a DOI?
Keywords
InSAR Interferogram, Noise, Wavelet Coefficient, Energy
Abstract

In order to identify noise type of the InSAR interferogram and facilitate more effective interferogram processing, especially for interferogram filtering based on wavelet transform, a novel methodology for identifying noise type and estimating noise level was reported. This methodology combined a wavelet transform algorithm with a logarithmic transform algorithm, and carried on the thorough analysis for the characteristics of interferogram wavelet coefficients from two aspects of energy distribution and statistics. Firstly, energy distribution characteristics of low frequency son-band coefficients were researched before and after the logarithmic transform, so that noise type of interferogram can be identified. On this base, the noise level would be estimated by high frequency coefficients. From the analysis results obtained in this study, the conclusions can be made that noise of InSAR interferogram is the additive noise, high frequency coefficients show standard normal distribution, and the noise level could be estimated by HH son-band on one scale. These results provide more spaces for noise analysis and processing of InSAR interferogram based on the wavelet transform algorithm.

Copyright
© 2013, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

<Previous Article In Volume
Next Article In Volume>
Volume Title
Proceedings of the 2013 the International Conference on Remote Sensing, Environment and Transportation Engineering (RSETE 2013)
Series
Advances in Intelligent Systems Research
Publication Date
August 2013
ISBN
10.2991/rsete.2013.88
ISSN
1951-6851
DOI
10.2991/rsete.2013.88How to use a DOI?
Copyright
© 2013, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

risenwbib
TY  - CONF
AU  - Guolin Cai
AU  - Guoxiang Liu
AU  - Aoli Zhang
AU  - Meiling Sun
AU  - Jiafa Tang
AU  - Shuaiyi Zhang
PY  - 2013/08
DA  - 2013/08
TI  - Identifying of Noise Type and Estimating of Noise Level for InSAR Interferogram in the Wavelet Domain
BT  - Proceedings of the 2013 the International Conference on Remote Sensing, Environment and Transportation Engineering (RSETE 2013)
PB  - Atlantis Press
SP  - 359
EP  - 363
SN  - 1951-6851
UR  - https://doi.org/10.2991/rsete.2013.88
DO  - 10.2991/rsete.2013.88
ID  - Cai2013/08
ER  -