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Derivation and Discussion of the SAR Migration Algorithm Within Inverse Scattering Problem: Theoretical Analysis.

Authors :
Lianlin Li
Wenji Zhang
Fang Li
Source :
IEEE Transactions on Geoscience & Remote Sensing. Jan2010 Part 2 of 2, Vol. 48 Issue 1, p415-422. 8p. 4 Graphs.
Publication Year :
2010

Abstract

The analysis of synthetic aperture radar (SAR) migration developed by Gilmore et al. has been refined within the context of the inverse scattering problem, particularly the distorted-wave Born approximation (DWBA). The SAR migration algorithm can be deduced from the DWBA-based inversion formulation when the following assumptions are satisfied: 1) homogeneous and nonfrequency-dependent background medium; 2) the exploding source model; and 3) the well-resolved targets described by an orthogonal relation derived in this paper. In addition, the other contributions of this paper are as follows: 1) The removal of the ω2 term has been clarified by the derived orthogonal relation; 2) a scale factor that balances the near-far field has been derived; and 3) a novel SAR migration algorithm for the imaging of targets embedded in a layered medium has been proposed. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
01962892
Volume :
48
Issue :
1
Database :
Academic Search Index
Journal :
IEEE Transactions on Geoscience & Remote Sensing
Publication Type :
Academic Journal
Accession number :
48041759
Full Text :
https://doi.org/10.1109/TGRS.2009.2024690