An Area Efficient Composed CORDIC Architecture

Advances in Electrical and Computer Engineering

AGUIRRE-RAMOS, F. ; MORALES-REYES, A. ; CUMPLIDO, R. ; FEREGRINO-URIBE, C..

关键词: digital systems;    computer architecture;    field programmable gate arrays;    signal processing;    circuit optimization;   

DOI  :  10.4316/AECE.2014.02019

学科分类：计算机科学（综合）

来源: Universitatea "Stefan cel Mare" din Suceava

【 摘 要 】

This article presents a composed architecture for the CORDIC algorithm. CORDIC is a widely used technique to calculate basic trigonometric functions using only additions and shifts. This composed architecture combines an initial coarse stage to approximate sine and cosine functions, and a second stage to finely tune those values while CORDIC operates on rotation mode. Both stages contribute to shorten the algorithmic steps required to fully execute the CORDIC algorithm. For comparison purposes, the Xilinx CORDIC logiCORE IP and previously reported research are used. The proposed architecture aims at reducing hardware resources usage as its key objective.

【 授权许可】

Unknown