Referenced Items are not available for this document.
Speckle tracking is used with synthetic aperture radar (SAR) images to estimate displacements, in ways that support or integrate interferometric measurements. This letter derives Fisher information expressions for the displacement estimation using coherent speckle tracking, for the multi-image scenario with an arbitrary coherence structure. Previous results were limited to image pairs. An estimator that approaches the theoretical bound is also proposed, establishing a link with phase estimation for multi-image SAR interferometry. The derivation of the Fisher information is given in the general case when the coherence is a function of the frequency.
Published in:
Geoscience and Remote Sensing Letters, IEEE
(Volume:8
,
Issue:
6
)
Date of Publication: Nov. 2011
- Page(s):
- 1095 - 1099
- ISSN :
- 1545-598X
- INSPEC Accession Number:
- 12319091
- Digital Object Identifier :
- 10.1109/LGRS.2011.2157079
- Product Type:
- Journals & Magazines
- Date of Publication :
- 13 June 2011
- Date of Current Version :
- 27 October 2011
- Issue Date :
- Nov. 2011
- Sponsored by :
- IEEE Geoscience and Remote Sensing Society
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