Improving phase unwrapping techniques by the use of local frequency estimates

E Trouve, JM Nicolas, H Maitre - IEEE Transactions on …, 1998 - ieeexplore.ieee.org
In multipass spaceborne synthetic aperture radar (SAR) interferometry, the two acquisitions
often present low correlation levels and very noisy phase measurements that are …

Noise-induced slope distortion in 2-D phase unwrapping by linear estimators with application to SAR interferometry

R Bamler, N Adam, GW Davidson… - IEEE Transactions on …, 1998 - ieeexplore.ieee.org
This paper explains the underestimation of phase slope and the consequent distortion of the
phase surface, observed in two-dimensional (2-D) phase unwrapping by linear estimators …

Multiresolution phase unwrapping for SAR interferometry

GW Davidson, R Bamler - IEEE Transactions on Geoscience …, 1999 - ieeexplore.ieee.org
An approach to two-dimensional (2D) phase unwrapping for synthetic aperture radar (SAR)
interferometry is presented, based on separate steps of coarse phase and fine phase …

A particle filter approach for InSAR phase filtering and unwrapping

JJ Martinez-Espla, T Martinez-Marin… - … on Geoscience and …, 2009 - ieeexplore.ieee.org
This paper presents a new phase-unwrapping (PU) algorithm for SAR interferometry that
makes use of a particle filter (PF) to perform simultaneously noise filtering and PU. The …

A fast phase unwrapping algorithm for SAR interferometry

M Costantini, A Farina, F Zirilli - IEEE Transactions on …, 1999 - ieeexplore.ieee.org
Phase unwrapping is the key problem in building the elevation map of a scene from
interferometric synthetic aperture radar (SAR) system data. Phase unwrapping consists in …

Three-dimensional phase unwrapping for satellite radar interferometry, I: DEM generation

B Osmanoğlu, TH Dixon… - IEEE Transactions on …, 2013 - ieeexplore.ieee.org
Determining the Earth's surface topography and deformation with interferometric synthetic
aperture radar involves measurement of phase, which, for a typical coherent radar signal …

Two-dimensional phase unwrapping for radar interferometry: developments and new challenges

R Gens - International Journal of Remote Sensing, 2003 - Taylor & Francis
The growing interest in the applications of synthetic aperture radar (SAR) interferometry led
to an increasing demand for reliable phase unwrapping techniques. Research efforts have …

Phase unwrapping for SAR interferometry—A data fusion approach by Kalman filtering

O Loffeld, H Nies, S Knedlik… - IEEE Transactions on …, 2007 - ieeexplore.ieee.org
This paper considers the problem of unwrapping the phase image obtained from a noisy
interferometric synthetic aperture radar (InSAR) image. The implicit nonlinearity of the …

Unwrapping large interferograms using the minimum cost flow algorithm

M Eineder, M Hubig, B Milcke - IGARSS'98. Sensing and …, 1998 - ieeexplore.ieee.org
For many applications of SAR interferometry phase unwrapping is an essential processing
step. However, though unwrapping errors usually result in large error contributions …

A region-growing algorithm for InSAR phase unwrapping

W Xu, I Cumming - IEEE transactions on geoscience and …, 1999 - ieeexplore.ieee.org
This paper describes a new region-growing algorithm for interferometric synthetic aperture
radar (SAR) phase unwrapping. The algorithm is designed to handle noisy interferograms …