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Mathematical Framework for Phase-Triangulation Algorithms in Distributed-Scatterer Interferometry (2015)

Institute of Electrical and Electronics Engineers (IEEE)

In: IEEE Geoscience and Remote Sensing Letters

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Publication Date: 2015-08-11

Description: To improve the spatial density of measurement points of persistent-scatterer interferometry, distributed scatterer (DS) should be considered and processed. An important procedure in DS interferometry is the phase triangulation (PT). This letter introduces two modified PT algorithms (i.e., equal-weighted PT and coherence-weighted PT) and analyzes the mathematical relations between different published PT methods (i.e., the maximum-likelihood phase estimator, least squares estimator, and eigendecomposition-based phase estimators). The analysis shows that the above five PT methods share very similar mathematical forms with different weight values in the estimation procedure.

Print ISSN: 1545-598X

Electronic ISSN: 1558-0571

Topics: Architecture, Civil Engineering, Surveying , Geography , Geosciences

Published by Institute of Electrical and Electronics Engineers (IEEE)

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