Comments on 'Influence of the Statistical Properties of Phase and Intensity on Closure Phase'

Journal article (2021)

Authors

Francesco De Zan Deutsches Zentrum für Luft- und Raumfahrt (DLR)
Fabio Rocca Politecnico di Milano
Paco López-Dekker Mathematical Geodesy and Positioning - CEG
M. Eineder Deutsches Zentrum für Luft- und Raumfahrt (DLR)
Research Group
Mathematical Geodesy and Positioning (CEG) (TU Delft)
Copyright: © 2021 Francesco De Zan, Fabio Rocca, Alessandro Ferretti, F.J. Lopez Dekker, Michael Eineder
DOI: https://doi.org/10.1109/TGRS.2020.3021130
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Published Date

2021

Language

English

Faculty

Civil Engineering & Geosciences

Department

Geoscience and Remote Sensing

Research Group

Mathematical Geodesy and Positioning

Abstract

A recent publication claims that closure phases in SAR interferometry bear no relationship to physical changes of the scatterer, but only to the statistical properties of the averaged pixels. We disprove this claim with a simple counterexample and remind the reader of cases in which closure phases indicate a clear physical content, including the exploitation of closure phases in other fields.