Modified CORDIC Algorithm and Its Implementation Based on FPGA

Abstract

In conventional CORDIC algorithm, multiplier and a lookup table are needed to achieve calculation of multiple transcendental function, which will lead to hardware circuit complexity and lower operation speed. Aim at overcoming the shortcomings of traditional CORDIC algorithm, a modified CORDIC algorithm is proposed and implemented by FPGA program. The method does not need the module of correction factor and the lookup table, and just needs a simple shift and add-subtract to achieve the calculation of multiple transcendental function. So it can reduce hardware costs and improve operational performance.