Topographic mapping with multiple antenna SAR interferometry: aBayesian model-based approach
Ashok, A.; Wilkinson, A.J.
Geoscience and Remote Sensing Symposium, 2001. IGARSS apos;01. IEEE 2001 International
Volume 5, Issue , 2001 Page(s):2058 - 2060 vol.5
Digital Object Identifier 10.1109/IGARSS.2001.977902
Summary:Multiple-antenna SAR interferometry involves the use of three or
more antennas to reduce the overall phase ambiguities and phase noise in
interferometric data. This paper presents a Bayesian approach to
topographic mapping with multiple-antenna SAR interferometry.
Topographic reconstruction is formulated as a parameter estimation
problem in the model-based Bayesian inference framework. An InSAR
simulator based on a forward model is developed for simulating SAR data
from multiple-antenna InSAR for evaluating the Bayesian topographic
reconstruction algorithms. A Bayesian point position algorithm is
developed to estimate the height of a point in the image. A measure of
the uncertainty in estimated position and height is also defined in
terms of the spread of the dominant mode of the posterior distribution.
An example demonstrating the performance of the algorithm for a
three-antenna InSAR system is reported, and conclusions are drawn
regarding the performance and improvements are proposed
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