A fast bit-serial lattice wave digital filter
Kent Palmkvist, Mark Vesterbacka, Erik Nordhamn, Lars Wanhammar · 1992
In this paper we discuss the implementation of maximally fast fixed-function digital filters. We demonstrate by means of an example that digital filters with sampling frequencies of more than hundred MHz can efficiently be implemented by using bit-serial PEs. The proposed approach lead to maximally fast filters that require little chip area and have low power consumption. Further, we show that the iteration period bound by Renfors et al. often can be lowered by applying equivalence transformations to the signal-flow graph. 1.