FPGA-Based CRAIMOT Basis Function Generator

Proceedings of the 25th IEEE Norchip Conference on CD 2007
Peteris Misāns, Māris Tērauds, Gatis Valters, Uldis Derums, Nauris Vasiļevskis

This paper deals with the aspects of practical generation of basis function(s) (BF(s)) and the basic notions for orthonormal parametrical transform called as “Constant Rotation Angle In Matrix Orthonormal Transform” (CRAIMOT). The presented CRAIMOT BF generator is implemented as Altera’s Cyclone II FPGA. A simplified block diagram and parameters of the generator are provided. The generator has a parallel structure and 5 times shorter sample time in opposite to the previous implementation. The sine/cosine former of BF generator has 3 different versions – CORDIC based, the linear interpolation based, and RAM table based. The comparison of the mentioned versions is provided.

Keywords
FPGA, Fixed Point Arithmetic, Generation of Basis Functions, Parameterization of Orthogonal Transforms
DOI
10.1109/NORCHP.2007.4481076
Hyperlink
http://ieeexplore.ieee.org.resursi.rtu.lv/xpl/articleDetails.jsp?arnumber=4481076

Misāns, P., Tērauds, M., Valters, G., Derums, U., Vasiļevskis, N. FPGA-Based CRAIMOT Basis Function Generator. In: Proceedings of the 25th IEEE Norchip Conference on CD, Denmark, Aalborg, 19-20 November, 2007. Aalborg: Technoconsult, DK, 2007, pp.1-6. ISBN 9781424415168. e-ISBN 9781424415175. Available from: doi:10.1109/NORCHP.2007.4481076

Publication language
English (en)