Title :
Hardware Operator for Simultaneous Sine and Cosine Evaluation
Author :
Tisserand, Arnaud
Author_Institution :
LIRMM, CNRS-Montpellier II Univ., Montpellier
Abstract :
This work deals with hardware evaluation of the sine and cosine functions for the same argument simultaneously. The proposed method uses trigonometric identities, small lookup tables and low-degree polynomial approximations with very sparse coefficients. Most of the multiplications are replaced by a small number of additions or subtractions, this leads to small and fast circuits
Keywords :
digital arithmetic; polynomial approximation; table lookup; cosine evaluation; hardware evaluation; hardware operator; low-degree polynomial approximations; sine evaluation; small lookup tables; trigonometric identities; Approximation error; Circuits; Digital control; Hardware; Image processing; Minimax techniques; Polynomials; Routing; Signal processing; Table lookup;
Conference_Titel :
Acoustics, Speech and Signal Processing, 2006. ICASSP 2006 Proceedings. 2006 IEEE International Conference on
Conference_Location :
Toulouse
Print_ISBN :
1-4244-0469-X
DOI :
10.1109/ICASSP.2006.1660823