一种基于专用IC的数字循环相关器结构

Structures of Digital CYclic Correlator Based on ASIC

介绍一种以ＡＳＩＣ（专用集成电路）实现为目的的数字循环相关器结构。基本思想是将快速算法与并行处理技术结合起来，以达到较高的工作速度而硬件开销又不致太大这个目标。讨论了累接算法及其运算量，然后根据累接算法给出了循环相关器的流水线结构，并分析这种结构的硬件开销及延迟级数。分析表明累接算法与流水线技术的结合是一种提高数字循环相关器综合指标的有效方法，并且所得的结构具有较好的规律性和简洁性，便于硬件实现。

This paper presents a kind of digital cyclic correlator structure for realization in applicationspecific integrated circuit(ASIC).The idea is to combine the techniques of fast algorithm and parallelprocessing in order that the working speed is much higher but the scale of hardware is not too large.Afterinterated algorthms and their computation complexity are studied,a pipeline structure of cyclic correlator isgiven based on the interated algorithm,the hardware scale and the delay of this structure are aiso analysed.It is concluded that the combination of interated algorithms and pipeline techniques is effective to increasecomprehensive quality index,and the obtained structure good in regularity and simplicity,which is helpfulto hardware realization.