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Process for filtering interferograms obtained from SAR images acquired on the same area

  • US 8,711,029 B2
  • Filed: 07/02/2010
  • Issued: 04/29/2014
  • Est. Priority Date: 07/08/2009
  • Status: Active Grant
First Claim
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1. A process for filtering interferograms obtained from SAR images, acquired on the same area by synthetic aperture radars, the process comprising the following steps:

  • a) acquiring a series of N radar images (Al . . . AN) by means of a SAR sensor on a same area with acquisition geometries such as to allow re-sampling of the data on common grid;

    b) after re-sampling on common grid, selecting a pixel from the common grid;

    c) calculating, using a microprocessor, the coherence matrix of the selected pixel, that is estimating the complex coherence values for each possible pair of available images;

    d) maximizing, with respect of the source vector θ

    , here unknown element, the functional;

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