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Layover Solution in Multibaseline InSAR Using Robust Beamforming

Jakobsson, Andreas LU ; Gini, Fulvio and Lombardini, Fabrizio (2003) Proceedings of the 3rd IEEE International Symposium on Signal Processing and Information Technology In Proceedings of the 3rd IEEE International Symposium on Signal Processing and Information Technology p.328-331
Abstract
In this work, we examine how to reliably exploit 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. Several multilook approaches have recently been suggested to counter act the presence of speckle, exploiting a repeated uniform spatial sampling of the baseline. In practice, the baseline steering vectors will generally be imprecise, resulting in array miscalibration. Herein, we propose a non-parametric multilook approach based on robust Capon beamforming, allowing for uncertainty in the steering vectors
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
image resolution, image sampling, radar imaging, radar resolution, radiowave interferometry, synthetic aperture radar, multibaseline INSAR - synthetic aperture radar - multichannel interferometric SAR system - range-azimuth resolution cell - strong terrain slopes - array miscalibration - nonparametric multilook approach - robust Capon beamforming - steering vectors
in
Proceedings of the 3rd IEEE International Symposium on Signal Processing and Information Technology
pages
328 - 331
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
conference name
Proceedings of the 3rd IEEE International Symposium on Signal Processing and Information Technology
external identifiers
  • scopus:84889766537
ISBN
0 7803 8292 7
language
English
LU publication?
no
id
f93d4f72-a0c9-4edb-9edb-cfd0e27e6b23 (old id 1216808)
date added to LUP
2008-10-06 11:47:07
date last changed
2017-01-01 08:06:12
@inproceedings{f93d4f72-a0c9-4edb-9edb-cfd0e27e6b23,
  abstract     = {In this work, we examine how to reliably exploit 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. Several multilook approaches have recently been suggested to counter act the presence of speckle, exploiting a repeated uniform spatial sampling of the baseline. In practice, the baseline steering vectors will generally be imprecise, resulting in array miscalibration. Herein, we propose a non-parametric multilook approach based on robust Capon beamforming, allowing for uncertainty in the steering vectors},
  author       = {Jakobsson, Andreas and Gini, Fulvio and Lombardini, Fabrizio},
  booktitle    = {Proceedings of the 3rd IEEE International Symposium on Signal Processing and Information Technology},
  isbn         = {0 7803 8292 7},
  keyword      = {image resolution,image sampling,radar imaging,radar resolution,radiowave interferometry,synthetic aperture radar,multibaseline INSAR  -  synthetic aperture radar  -  multichannel interferometric SAR system  -  range-azimuth resolution cell  -  strong terrain slopes  -  array miscalibration  -  nonparametric multilook approach  -  robust Capon beamforming  -  steering vectors},
  language     = {eng},
  pages        = {328--331},
  publisher    = {IEEE--Institute of Electrical and Electronics Engineers Inc.},
  title        = {Layover Solution in Multibaseline InSAR Using Robust Beamforming},
  year         = {2003},
}