Implementation of Para-CORDIC Algorithm and Its Applications in Satellite Communication

Abstract

CORDIC stands for COrdinate Rotation Digital Computer, is an algorithm developed to compute trigonometric function through series of rotation. Para-CORDIC is the latest method of implementation of CORDIC equations and has an advantage over other implementation algorithm in terms of speed and accuracy. This paper presents the implementation of Para-CORDIC algorithm and its applications in satellite communication. Specifically Para-CORDIC based Direct Digital Frequency Synthesizer (DDFS) and Digital Down Converter (DDC) and their uses in satellite communication is discussed in length. The algorithm and its applications are first tested on Matlab and then designs are coded in VHDL. The real time testing is done on Xilinx platform. Apart from the hardware realization, paper also presents the comparison among the different DDFS, and results shows that Para-CORDIC based DDFS outperforms others.