关键词: 分布算术, 并行DA, PE阵列, 前缀求和

Abstract: A kind of scalable array architecture based on DA implementation is proposed.Better scalability and high parallel processing efficiency can be obtained by array configuration.Compared with traditional ASIC implementation，this architecture not only properly solves the problems of disability of self adaptation of order and data word width，but also solves the problem of large storage requirement and low throughput of ASIC.The implementation cost and performance comparison with typical architecture are presented in the last part，which demonstrate that the proposed architecture has lower memory requirements，lower time cost and better performance-cost ratio.

Key words: distributed arithmetic, Parallel DA（PDA）, PE array, prefix-accumulation