在OFDM系统中，针对多普勒频偏采用多种算法进行校正，该文总结了这些算法。-In OFDM system, for the use of a wide range of Doppler shift correction algorithm, the text summary of the algorithm.

source code for OFDM modem using sound card

c++ source fft ifft 2-d FFT ofdm