Interferometric phase denoising and unwrapping: a literature review

Authors: Gianluca Valentino, Johann Briffa, Reuben Farrugia, Asma Fejjari

Corresponding: Gianluca Valentino (

Keywords: InSAR, Phase denoising, Phase unwrapping

Doi: 10.7423/XJENZA.2023.1.06

Issue: Xjenza Online Vol. 11 Special Issue (Top Scientists)

Interferometric SAR (InSAR) phase denoising and phase unwrapping are two key steps of the InSAR pipeline, leading to estimated deformation maps. The objective of this paper is to provide an overview of the recent literature in the field of InSAR phase denoising and unwrapping, and identify the most promising techniques, as well as benchmarks for performance comparison. Summaries of the performance metrics of the various methods are also provided. An example use case of InSAR techniques, including phase denoising and unwrapping, to estimate deformation following a volcanic eruption is provided.

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