The design of 128-point FFT processor based on ASIC
Cheng Shu-ying · Fuzhou daxue xuebao. Ziran kexue ban · 2008
We introduces the design of 128-point fixed-point FFT processor which is primarily applied in the MB-OFDM based UWB system,and based on the radix-22/2 arithmetic of 128-point Fast Fourier Transform(FFT),a parallel and pipeline hardware architecture of FFT processor was designed.Then the state machine of the FFT controller was designed.Finally a FFT IP controller core with high performances was realized,which meets the demand timing and design technology and the whole system reaches the following target: the 66MHz working frequency,the 3.54mm2 area and the 71.6mW power dissipation.