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On the Estimation of Interferometric Phases for Multibaseline SAR Interferometry using a Relaxation-Based Technique

Jakobsson, Andreas LU ; Gini, Fulvio and Lombardini, Fabrizio (2003) Proceedings of International Conference on Acoustics, Speech and Signal Processing (ICASSP'03) In 2003 IEEE International Conference on Acoustics, Speech, and Signal Processing Vol 5. p.277-280
Abstract
In this paper, we examine how one can 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. We propose a multilook approach to counteract the presence of the time-and-space varying amplitude distortion which is due to the extended nature of natural targets; to this purpose we extend a recent relaxation based approach by estimating the interferometric phases using a nonlinear least squares estimation technique that is based on a deterministic modelling of the amplitude distortion
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
least squares approximations, nonlinear estimation, phase estimation, radar imaging, radar resolution, radiowave interferometry, relaxation theory, remote sensing by radar, synthetic aperture radar, time-varying systems, interferometric phase estimation, multibaseline SAR interferometry, relaxation-based technique, baseline diversity, multichannel interferometric system, layover problem, height contributions, range-azimuth resolution cell, strong terrain slopes, sensed scene discontinuities, multilook approach, time-and-space varying amplitude distortion, natural targets, nonlinear least squares estimation, deterministic modelling
in
2003 IEEE International Conference on Acoustics, Speech, and Signal Processing
volume
Vol 5
pages
277 - 280
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
conference name
Proceedings of International Conference on Acoustics, Speech and Signal Processing (ICASSP'03)
external identifiers
  • Scopus:0141520656
ISBN
0 7803 7663 3
DOI
10.1109/ICASSP.2003.1199922
language
English
LU publication?
no
id
24b16722-cfd6-4731-a9b8-105e9c0a5e0a (old id 1216794)
date added to LUP
2008-10-06 09:26:32
date last changed
2016-10-13 04:50:03
@misc{24b16722-cfd6-4731-a9b8-105e9c0a5e0a,
  abstract     = {In this paper, we examine how one can 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. We propose a multilook approach to counteract the presence of the time-and-space varying amplitude distortion which is due to the extended nature of natural targets; to this purpose we extend a recent relaxation based approach by estimating the interferometric phases using a nonlinear least squares estimation technique that is based on a deterministic modelling of the amplitude distortion},
  author       = {Jakobsson, Andreas and Gini, Fulvio and Lombardini, Fabrizio},
  isbn         = {0 7803 7663 3},
  keyword      = {least squares approximations,nonlinear estimation,phase estimation,radar imaging,radar resolution,radiowave interferometry,relaxation theory,remote sensing by radar,synthetic aperture radar,time-varying systems,interferometric phase estimation,multibaseline SAR interferometry,relaxation-based technique,baseline diversity,multichannel interferometric system,layover problem,height contributions,range-azimuth resolution cell,strong terrain slopes,sensed scene discontinuities,multilook approach,time-and-space varying amplitude distortion,natural targets,nonlinear least squares estimation,deterministic modelling},
  language     = {eng},
  pages        = {277--280},
  publisher    = {ARRAY(0x9328ff0)},
  series       = {2003 IEEE International Conference on Acoustics, Speech, and Signal Processing},
  title        = {On the Estimation of Interferometric Phases for Multibaseline SAR Interferometry using a Relaxation-Based Technique},
  url          = {http://dx.doi.org/10.1109/ICASSP.2003.1199922},
  volume       = {Vol 5},
  year         = {2003},
}