Design and Implementation of 16 Point Radix 4 Parallel Fast Fourier Transform Processor

The FFT processor is a critical block in all multicarriersystems used primarily in the mobile systemsfor image and digital signal processing applications.It is therefore interesting to develop an FFTprocessor as a widely usable VLSI building block.In order to be flexible so that the processor can beused in a variety of applications without majorredesign , the performance in terms of computationalthroughput , and transform length should be: easilymodifiable. This system implements the 16 pointradix 4 parallel Fast Fourier Transform processorwith sfixed format (signed fixed point representation)and focuses on the complex multiplier design withtwo different approaches