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Super-Resolution SAR Imaging via Nonlinear Regressive Model Parameter Estimation Method
- Source :
- CGIV
- Publication Year :
- 2005
- Publisher :
- IEEE, 2005.
-
Abstract
- A novel SAR super-resolution imaging method is described Firstly, SAR image peak extraction is carried out in the image domain and the coarse feature parameter estimation is obtained. Secondly, Parameter estimation of nonlinear regressive model is carried out in the phase history domain and the fine feature parameter estimation is obtained. Finally, from the estimated parameter and based on the point-scattering model, the simulated phase history data of large dimensions is generated. By FFT imaging, higher resolution image is obtained. Experimental examples have shown that this method offer significant advantages over the FFT methods to better resolve the dominant target scatterers.
- Subjects :
- Synthetic aperture radar
business.industry
Estimation theory
Computer science
Fast Fourier transform
Feature extraction
ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION
Phase (waves)
Nonlinear system
Radar imaging
Computer vision
Artificial intelligence
business
Image resolution
Algorithm
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- International Conference on Computer Graphics, Imaging and Visualization (CGIV'05)
- Accession number :
- edsair.doi...........937410441e94b80a5dc2defb3e2333e1