Design and Implementation of OFDM Base Band Data Transmission System Based on FPGA

It designed an OFDM baseband signal processing system.This design used FPGA reconstruction and flexibility,FFT dedicated processor based on high speed floating point butterfly operation unit of CORDIC algorithm flow structure,as well as enhanced modulation mode(64-QAM) in adaptive modulation mode to realize the signal modulation,has the high transmission rate.The System design reasonably used FPGA resources,highly integrated in a FPGA chip inside,simplified the complexity of the system,and finally adapted to the EP2C20F484C6 Altera on a chip,stable operation in 100 MHz clock frequency.At the same time,this system has high flexibility and universality,and simple structure,clutter suppression is good,as a result this has a certain application prospect.