Title :
Reducing complexity by increasing order of IIR digital filters
Author_Institution :
Westminster Univ., London, UK
Abstract :
A study into the trade-off between filter order and complexity (where complexity is a measure of the chip area required to implement the filter) is performed for low-order elliptic IIR filters. It is found that the order at which minimum complexity occurs is about 2% higher than the order produced by order estimators for infinite-precision coefficients
Keywords :
IIR filters; computational complexity; digital filters; elliptic filters; filtering theory; IIR digital filters; chip area; complexity reduction; filter order increase; low-order elliptic filters; Added delay; Approximation methods; Area measurement; Costs; Digital filters; Finite impulse response filter; IIR filters; Performance evaluation; Semiconductor device measurement; Shape;
Conference_Titel :
Electronics, Circuits, and Systems, 1996. ICECS '96., Proceedings of the Third IEEE International Conference on
Conference_Location :
Rodos
Print_ISBN :
0-7803-3650-X
DOI :
10.1109/ICECS.1996.582920
