Abstract
This paper presents a designing scheme of high-speed real-time serial pipelined Fast Fourier Transform (FFT) processor on FPGA which is based on Coordinate Rotation Digital Computer (CORDIC) algorithm. The CORDIC algorithm will reduce the hardware complexity compared to the direct implementation of the butterflies using complex multipliers. Moreover, the design uses the butterflies of the radix-2 Decimation-In-Time (DIT) algorithm, the dual-port RAM and the pipelined structure, which will sufficiently increase the performances of the FFT processor. The simulation results show that compared with the same type of real-time FFT processor, the scheme presented in this paper reduces the hardware resource requirements of Adaptive Look-up Tables (ALUTs) and increase the Signal Noise Ratio (SNR) by about 25dB.
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