Research on OFDM System and Implementation of Software Radio
Zejun Liu · Radio and communications technology · 2007
For OFDM system,there are two implementation methods,such as direct implementation method and DSP implementation method.Through analysis for OFDM system,we discover that when we use DFT to process OFDM system,it can not only simplify the design of modem,but also achieve high-speed FFT calculation in the DSP chip and the hardware architecture.Therefore,on the basis of DSP technology and high-speed FFT algorithm,modulation and demodulation theory and improvement of anti-jamming capability in OFDM system,this paper designs a scheme in which we take DSP and FPGA as the core to implement OFDM transmitting and receiving system.