A novel design approach for ROM-less direct digital frequency synthesizers based on polynomial approximations

@article{Chau2009AND,
  title={A novel design approach for ROM-less direct digital frequency synthesizers based on polynomial approximations},
  author={Yawgeng A. Chau and Yao-Hua Chen},
  journal={2008 International Symposium on Intelligent Signal Processing and Communications Systems},
  year={2009},
  pages={1-4}
}
A new design principle of the ROM-less direct digital frequency synthesizer (DDFS) based on the polynomial approximation is proposed, where the spurious free dynamic range (SFDR) is used as a design criterion for the polynomial coefficients. The optimal SFDR is pursued, and is transformed into a Chebyshev minimax problem with constraints. Numerical examples are presented to illustrated the SFDR evaluations. 

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