New SNAP plugins available

Dear all.
Two new plugins are available on SNAP:

  • Coherence Tracking (cohTrack)
  • Multiple Aperture Interferometry (MAI)

Coherence Tracking (cohTrack) - (c) Free Software Foundation
Coherence Tracking is a technique that is both able to retrieve bidimensional displacement maps at coarse resolution but also recorrelate 2 signals to produce an interferogram for precise estimation of slant-range displacements. Results are particularly spectacular where surface is moving fast.
The idea of coherence tracking is that large surface displacement will create artificial coherence loss. This is mostly due because the coregistration of SAR images is geographically robust, i.e. that coregistered pixels are pointing the exact same location in the two images, without considering the scene moving. This is even more true with coregistration based on precise orbits estimates.
With coherence tracking, we try to find where scatterers moved by performing fine coregistration using maximization of the coherence.
For more information, please refer to the following article

Multiple Aperture Interferometry (MAI) - MATLAB®. © 1984 - 2023 The MathWorks, Inc.
Differential SAR interferometry (InSAR) become a very
common tool for measuring displacement maps. The
major limitation of InSAR is that it is only sensitive to displacements in one dimension: the light-of-sight direction. This can be overcome using different viewing geometries, but this cannot be guaranteed everywhere on Earth, in particular in polar regions.
Multiple Aperture Interferometry (MAI) has been proposed by Bechor and Zebker in 2006, extracting azimuth displacements from a single pair of SAR images. Compared to pixel offset tracking, MAI is estimated to be twice more precise.
For more information, please refer to the following article

All the information about these plugins are available here