SYSTEM AND METHOD FOR PROCESSING A SIGNAL WITH A FILTER EMPLOYING FIR AND IIR ELEMENTS

摘要

A system and method for processing a signal with a filter employing FIR and/or IIR elements. The required controller function is decomposed into primary FIR and/or IIR elements and a compensation filter is provided to address the latency in the primary elements, which would result in undesired operation of the filter. Several configurations of suitable filters are discussed, including multi-rate filters and filters with reduced power requirements.

主权项

1. A filter operating on an input signal to produce an output signal, the filter comprising:
a first signal processing path for processing the input signal with a first latency to produce a first component of the output signal; and a second signal processing path having a second latency, less than the first latency, the second signal processing path providing compensation for the effect of the first latency on the output signal.