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A TSVD-NCS Algorithm in Range-Doppler Domain for Geosynchronous Synthetic Aperture Radar
- Source :
- IEEE Geoscience and Remote Sensing Letters. 13:1631-1635
- Publication Year :
- 2016
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2016.
-
Abstract
- The ultralong synthetic aperture time and a very large scene cause severe 2-D spatial variation in geosynchronous synthetic aperture radar. The range variation was corrected using the range cell migration equalization and the modified chirp scaling function. The azimuth variation correction with the singular value decomposition and the azimuth nonlinear scaling was studied. The validity of the proposed imaging algorithm has been assessed. Satisfactory results were obtained in the removal of the azimuth variation, and the focusing of point targets from a synthetic aperture up to 1000 s and a scene of 150 km (azimuth) $\times$ 130 km (range).
- Subjects :
- Synthetic aperture radar
Physics
020301 aerospace & aeronautics
business.industry
0211 other engineering and technologies
Side looking airborne radar
02 engineering and technology
Geotechnical Engineering and Engineering Geology
Azimuth
Inverse synthetic aperture radar
symbols.namesake
Optics
0203 mechanical engineering
Radar imaging
Singular value decomposition
symbols
Chirp
Electrical and Electronic Engineering
business
Doppler effect
021101 geological & geomatics engineering
Remote sensing
Subjects
Details
- ISSN :
- 15580571 and 1545598X
- Volume :
- 13
- Database :
- OpenAIRE
- Journal :
- IEEE Geoscience and Remote Sensing Letters
- Accession number :
- edsair.doi...........950dc84d53a12dcd4dc5553b8f57d7e9