Summary: A HYBRID SEGMENTATION AND BLOCK PROCESSING ALGORITHM
FOR LOW POWER IMPLEMENTATION OF DIGITAL FILTERS
A. T. Erdogan and T. Arslan *
University of Edinburgh,
Department of Electronics & Electrical Engineering,
Edinburgh EH9 3JL, Scotland,
* Also affiliated with Institute for System Level Integration, Livingston, Scotland.
The paper proposes a hierarchical algorithm for low power
implementation of digital filters. The algorithm processes data and
coefficients in blocks of fixed sizes. During the manipulation of each
block, coefficients are segmented into two primitive components.
The accumulative effect of processing a sequence of blocks and
segmentation results in up to 80% reduction in power consumption
compared to conventional filtering. The paper describes the
implementation of the hierarchical algorithm, its constituent
components and the power evaluation environment developed.
Results are provided which demonstrate the effectiveness of the