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Weighted Subspace Fitting of Interferometric Phases for Multibaseline SAR Interferometry

Jakobsson, Andreas LU ; Lombardini, Fabrizio and Gini, Fulvio (2003) ISSPA 2003. Seventh International Symposium on Signal Processing and its Applications. Proceedings In ISSPA 2003. Seventh International Symposium on Signal Processing and its Applications. Proceedings 1. p.321-324
Abstract
In this paper, we deal with the problem of exploiting baseline diversity of a multichannel interferometric SAR system to overcome the layover problem. The problem arises when different height contributions collapse in the same range-azimuth resolution cell, due to the presence of strong terrain slopes or discontinuities in the sensed scene. The multilook framework is adopted to counteract the presence of the space varying distortion, termed speckle, which is due to the extended nature of natural targets; to this purpose we introduce a weighted subspace fitting approach to estimate the interferometric phases. Although the approach does not take the speckle into account, it is found to yield estimates superior to previously examined methods
Please use this url to cite or link to this publication:
author
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
interferometry, phase estimation, radar imaging, synthetic aperture radar, weighted subspace fitting, interferometric SAR system, multichannel baseline diversity, multilook framework, speckle, interferometric phase estimation
in
ISSPA 2003. Seventh International Symposium on Signal Processing and its Applications. Proceedings
volume
1
pages
321 - 324
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
conference name
ISSPA 2003. Seventh International Symposium on Signal Processing and its Applications. Proceedings
external identifiers
  • Scopus:21544450790
ISBN
0 7803 7946 2
DOI
10.1109/ISSPA.2003.1224705
language
English
LU publication?
no
id
5030b9d0-f817-4287-9af5-936fed85deca (old id 1216800)
date added to LUP
2008-10-06 10:03:11
date last changed
2016-10-13 04:47:09
@misc{5030b9d0-f817-4287-9af5-936fed85deca,
  abstract     = {In this paper, we deal with the problem of exploiting baseline diversity of a multichannel interferometric SAR system to overcome the layover problem. The problem arises when different height contributions collapse in the same range-azimuth resolution cell, due to the presence of strong terrain slopes or discontinuities in the sensed scene. The multilook framework is adopted to counteract the presence of the space varying distortion, termed speckle, which is due to the extended nature of natural targets; to this purpose we introduce a weighted subspace fitting approach to estimate the interferometric phases. Although the approach does not take the speckle into account, it is found to yield estimates superior to previously examined methods},
  author       = {Jakobsson, Andreas and Lombardini, Fabrizio and Gini, Fulvio},
  isbn         = {0 7803 7946 2},
  keyword      = {interferometry,phase estimation,radar imaging,synthetic aperture radar,weighted subspace fitting,interferometric SAR system,multichannel baseline diversity,multilook framework,speckle,interferometric phase estimation},
  language     = {eng},
  pages        = {321--324},
  publisher    = {ARRAY(0xa6f8010)},
  series       = {ISSPA 2003. Seventh International Symposium on Signal Processing and its Applications. Proceedings},
  title        = {Weighted Subspace Fitting of Interferometric Phases for Multibaseline SAR Interferometry},
  url          = {http://dx.doi.org/10.1109/ISSPA.2003.1224705},
  volume       = {1},
  year         = {2003},
}