On-line architecture for the S.Mallat algorithm

Wavelets have been a research matter in a variety of fields since they were created. They are developed in mathematics, algorithmic, architectures and physical applications. The S.MALLAT algorithm has been implemented in many ways and in different architectures by several research groups. In this paper we shall present an architecture for a circuit of reduced area, little cost and high speed, which combine serial and parallel calculation modes. Its design is based on on-line arithmetic. It realizes the S.Mallat decomposition scheme in which filtering is the basic operation. The paper consists of an introduction, a description of the wavelets functions, a description of the on-line arithmetic, a description of the developed circuit architecture and a conclusion.