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Estimation of the minimum number of tracks for SAR tomography
- Source :
- IEEE Transactions on Geoscience and Remote Sensing. Feb, 2009, Vol. 47 Issue 2, p531, 13 p.
- Publication Year :
- 2009
-
Abstract
- Synthetic aperture radar tomography (SARTom) is the natural extension of SAR interferometry to solve for multiple phase centers within a resolution cell and obtain the 3-D representation of a scene. This paper deals with the determination of the minimum number of tracks required to perform SARTom. Through the prolate spheroidal wave functions, the number of equivalent targets of a volumetric source is derived, and from it, the minimum number of observations required to apply subspace superresolution methods is computed. The minimum tomographic aperture length is also investigated. The results are validated on real data acquired in L-band by the experimental SAR system of the German Aerospace Center. Index Terms--Synthetic aperture radar tomography (SARTom), superresolution, system dimension.
Details
- Language :
- English
- ISSN :
- 01962892
- Volume :
- 47
- Issue :
- 2
- Database :
- Gale General OneFile
- Journal :
- IEEE Transactions on Geoscience and Remote Sensing
- Publication Type :
- Academic Journal
- Accession number :
- edsgcl.194332154