An Improved Digital Chirp Generator Using Optimized Piecewise- Polynomial Approximations
Conference: EUSAR 2010 - 8th European Conference on Synthetic Aperture Radar
06/07/2010 - 06/10/2010 at Aachen, Germany
Proceedings: EUSAR 2010
Pages: 4Language: englishTyp: PDF
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Authors:
Samarah, Ashraf; Loffeld, Otmar (ZESS Uni-Siegen, Germany)
Abstract:
This paper proposes a new technique to efficiently and extremely increase the performance of Pedersen’s digital chirp generator concerning the level of the Spurious-Free Dynamic Range (SFDR). The digital chirp generator uses the optimized piecewise-polynomial approximation to decrease the memory size and system complexity and excellent spectral performance in comparison with the other techniques.