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A New Slant-Range Velocity Ambiguity Resolving Approach of Fast Moving Targets for SAR System.
- Source :
-
IEEE Transactions on Geoscience & Remote Sensing . Jan2010 Part 2 of 2, Vol. 48 Issue 1, p432-451. 20p. 2 Charts, 48 Graphs. - Publication Year :
- 2010
-
Abstract
- This paper describes an ambiguity resolving approach for slant-range velocity estimation which utilizes the wideband characteristic of the transmitted signal (multiple wavelengths). Based on the wavelength dual-wavelength radar data. Then, two effective approaches are introduced to focus the moving target no matter the Doppler ambiguity exists or not. The slant-range velocity is estimated by the number of azimuth cell displacements between the two focused images. Both imaging methods have different properties and advantages. A performance analysis is made, and deleterious factors in practice are analyzed in detail. The effectiveness of the unambiguous slant-range velocity estimation approach is demonstrated with the use of simulated and real data. [ABSTRACT FROM AUTHOR]
- Subjects :
- *WAVELENGTHS
*AZIMUTH
*RADAR
*DOPPLER effect
*ALGORITHMS
Subjects
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 :
- 48041761
- Full Text :
- https://doi.org/10.1109/TGRS.2009.2027698