Implementation of Polyphase Decomposed FIR Filters for Interpolation and Decimation Using Multiple Constant Multiplication Techniques

@article{Gustafsson2006ImplementationOP,
title={Implementation of Polyphase Decomposed FIR Filters for Interpolation and Decimation Using Multiple Constant Multiplication Techniques},
author={Oscar Gustafsson and Kenny Johansson and H{\aa}kan Johansson and Lars Wanhammar},
journal={APCCAS 2006 - 2006 IEEE Asia Pacific Conference on Circuits and Systems},
year={2006},
pages={924-927}
}

Multiple constant multiplication (MCM), i.e., realizing a number of constant multiplications using a minimum number of adders and subtracters, has been an active research area for the last decade. Almost all work has been focused on single rate FIR filters. However, for polyphase interpolation and decimation FIR filters there are two different implementation alternatives. For interpolation, direct form subfilters lead to fewer registers as they can be shared among the subfilters. The arithmetic… CONTINUE READING