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

Jakobsson, Andreas LU orcid ; Gini, Fulvio and Lombardini, Fabrizio (2003) Proceedings of International Conference on Acoustics, Speech and Signal Processing (ICASSP'03) 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
; and
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
host publication
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)
conference dates
2003-04-06 - 2003-04-10
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
2016-04-04 12:10:53
date last changed
2022-01-29 23:03:25
@inproceedings{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}},
  booktitle    = {{2003 IEEE International Conference on Acoustics, Speech, and Signal Processing}},
  isbn         = {{0 7803 7663 3}},
  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}},
  language     = {{eng}},
  pages        = {{277--280}},
  publisher    = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}},
  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}},
  doi          = {{10.1109/ICASSP.2003.1199922}},
  volume       = {{Vol 5}},
  year         = {{2003}},
}