On the Estimation of Interferometric Phases for Multibaseline SAR Interferometry using a Relaxation-Based Technique
(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:
https://lup.lub.lu.se/record/1216794
- author
- Jakobsson, Andreas LU ; Gini, Fulvio and Lombardini, Fabrizio
- publishing date
- 2003
- 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}}, }