నైరూప్య

CORDIC Based FFT for Signal Processing System

Karthick S, Priya P, Valarmathy S

A pure CORDIC based architecture is used to calculate the FFT in signal processing. Though many hardware efficient algorithms exist, but these are not generally known due to the dominance of software systems. Among these algorithm is a set of shift and add operation collectively known as CORDIC used for computing a wide range of function including certain hyperbolic, trigonometric, logarithmic and linear functions. The CORDIC is used in many digital signals processing application in which FFT is designed in this. The performance of this approach can compete with the ordinary MAC based FFT. With the presented pure CORDIC based FFT it is now possible to replace the main processing blocks of the WLAN and UMTS baseband by this programmable architecture