关键词: 反向转换器, 加法器, 剩余数系统, 新中国余数定理

Abstract:

Aiming at large DR ( dynamic range) residue number systems ( RNS) ,a new four-moduli set{ 2^{n －1},2²ⁿ + 1,2ⁿ + 1,2ⁿ －1} is proposed. Then,a high efficiency and parallel conversion algorithm for the residue-tobinary conversion of the new moduli set is realized based on the new Chinese remainder theorem 1,and the corresponding converter circuit is designed. As compared with the common converters using the same 5n-bit DR moduli set,the proposed converter adopts adders as the primitive operators,so that it greatly reduces the hardware requirement and significantly decreases the area and delay,thus increasing the conversion efficiency.

Key words: reverse converter, adder, residue number system, new Chinese remainder theorem