A NOVEL RADIX-3/9 ALGORITHM FOR TYPE-III GENERALIZED DISCRETE HARTLEY TRANSFORM

Author:

YANG XIAOFAN1,MEGSON GRAHAM M.2,XING YONGKANG1,EVANS DAVID J.3

Affiliation:

1. Department of Computer Science, Chongqing University, Chongqing 400044, P. R. China

2. Department of Computer Science, School of Systems Engineering, University of Reading, Reading, Berkshire, RG6 6AY, UK

3. Parallelism, Algorithms and Architectures Research Centre, Department of Computer Science, Loughborough University, Loughborough, Leicestershire, LE11 3TU, UK

Abstract

A novel radix-3/9 algorithm for type-III generalized discrete Hartley transform (GDHT) is proposed, which applies to length-3p sequences. This algorithm is especially efficient in the case that multiplication is much more time-consuming than addition. A comparison analysis shows that the proposed algorithm outperforms a known algorithm when one multiplication is more time-consuming than five additions. When combined with any known radix-2 type-III GDHT algorithm, the new algorithm also applies to length-2q3p sequences.

Publisher

World Scientific Pub Co Pte Lt

Subject

Electrical and Electronic Engineering,Hardware and Architecture,Electrical and Electronic Engineering,Hardware and Architecture

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