Aligning Interferograms from Single-baseline InSAR by Local Frequency Estimation

DOI

10.2991/eers-15.2015.1How to use a DOI?

Keywords

synthetic aperture radar interferometry(InSAR); Digital Elevation Model(DEM); multibaseline; local frequency estimation

Abstract

It is feasible to obtain multibaseline InSAR data with repeat passes of existing single-baseline InSAR systems. Due to high coherence, the single-pass pair of SAR images can be accurately aligned using existing methods. However, there exist great difficulties in alignment of multiple-pass SAR images. Fortunately, repeat-pass interferograms are corresponding to the same terrain, i.e., DEM (Digital Elevation Model). Hence the interferograms are coherent, even if the SAR images are decorrelated completely. From this point, this paper proposes an innovative strategy to align the interferograms rather than the SAR images. Since the interferograms generated by different effective baseline are not identical, this paper proposes a new method to align interferograms by local frequency estimation. Finally, the computer simulation results show that the proposed method can align interferograms accurately.

Copyright

© 2015, 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/).

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TY  - CONF
AU  - Jiao Guo
AU  - Shenglan Wang
AU  - Baofeng Su
PY  - 2015/09
DA  - 2015/09
TI  - Aligning Interferograms from Single-baseline InSAR by Local Frequency Estimation
BT  - Proceedings of the 2015 International Conference on Environmental Engineering and Remote Sensing
PB  - Atlantis Press
SP  - 1
EP  - 5
SN  - 2352-538X
UR  - https://doi.org/10.2991/eers-15.2015.1
DO  - 10.2991/eers-15.2015.1
ID  - Guo2015/09
ER  -