Chirp scaling algorithm using the least-squares approximation
Conference: EUSAR 2014 - 10th European Conference on Synthetic Aperture Radar
06/03/2014 - 06/05/2014 at Berlin, Germany
Proceedings: EUSAR 2014
Pages: 3Language: englishTyp: PDF
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Authors:
Ribalta, Angel (Fraunhofer FHR, Germany)
Abstract:
The standard chirp scaling algorithm requires a quadratic approximation to the phase function of the SAR signal in the frequency domain. We propose to find this approximation using the method of least squares. First simulation results show an improvement in the image quality when compared with the usual Taylor approximation.