Title :
A new method of implementation of VLSI CORDIC for sine and cosine computation
Author :
Lo, Hao-Yung ; Lin, Hsiu-Feng ; Yang, Kuen-Shiuh
Author_Institution :
Inst. of Inf. Eng., Feng Chia Univ., Taichung, Taiwan
fDate :
30 Apr-3 May 1995
Abstract :
In this paper, a new CORDIC method for computing sine and cosine functions with a variable scalar factor is presented. The proposed new CORDIC algorithm will reduce the number of iterations to 6 maximum, with the accuracy of 16 bit length. This is accomplished by using signed two bits, instead of one to process at a time. In order to show the feasibility and the accuracy of the proposed new CORDIC algorithm, we use C language to simulate all 216=65536 input angle patterns. Results have been shown that the accuracy can be up to 99% maximum and 96% minimum
Keywords :
VLSI; digital arithmetic; error analysis; iterative methods; CORDIC algorithm; VLSI CORDIC; cosine function; sine function; variable scalar factor; Equations; Silicon compounds; Very large scale integration;
Conference_Titel :
Circuits and Systems, 1995. ISCAS '95., 1995 IEEE International Symposium on
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-2570-2
DOI :
10.1109/ISCAS.1995.523810
