Implementation of digital fixed-point approximations to continuous-time IIR filters

Abstract

An analytical framework for the implementation of digital infinite impulse response filters in fixed-point hardware on FPGAs is presented. It presumes that a continuous-time filter with the desired response is given. Within the framework, the constant coefficient bit widths are determined by accounting for the sensitivity of the filter's pole and zero… (More)
DOI: 10.1145/611817.611863

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