Abstract:The base extension operation for residue number systems (RNS) plays an important role in RNS-based digital signal processing (DSP) systems. In this paper, a new base extension algorithm is proposed which can extend the dynamic range from moduli set 2n-1,2n,2n+1 to moduli set 22n-1,22n,22n+1. In this paper, the very large scale integrated (VLSI) circuits implement of the proposed algorithm is also presented, with the properties of moduli set 2n-1,2n,2n+1, the implement is composed of binary adders and modular adders; The analysis result based on unit-gate model and ASIC (application specific integrated circuit) implementation shows that the VLSI implementation of the proposed base extension algorithm exhibits better performances for the same dynamic range extension.