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Blind estimation of speckle variance in synthetic aperture radar images

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review


Original languageEnglish
Title of host publication2015 International Conference on Antenna Theory and Techniques: Dedicated to 95 Year Jubilee of Prof. Yakov S. Shifrin, ICATT 2015 - Proceedings
PublisherThe Institute of Electrical and Electronics Engineers, Inc.
ISBN (Print)9781479985579
Publication statusPublished - 25 Jun 2015
Publication typeA4 Article in a conference publication
EventInternational Conference on Antenna Theory and Techniques -
Duration: 1 Jan 1900 → …


ConferenceInternational Conference on Antenna Theory and Techniques
Period1/01/00 → …


A task of blind estimation of multiplicative noise (speckle) variance in multi-look images acquired by radars with synthesized aperture array is considered. It is shown that there are several factors affecting accuracy of such estimation. The main of them are spatial correlation of the speckle, complexity of an analyzed image and peculiarities of a method used. Spatial and spectral domain approaches are analyzed. It is shown that for both approaches spatial correlation of the speckle is to be estimated and taken into account. Results for real life TerraSAR-X data are presented as illustrations and for analyzing methods' accuracy.


  • blind estimation, multi-look, SAR, speckle variance

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