中文说明：
在研究了超高速OFDM系统传输模型的基础上，对OFDM系统的传输信号结构进行了分析，结合传统的多普勒频移算法，用OFDM信号循环前缀所包含的相对频偏信息设计了实时性较好的多普勒频移估计方法，并分析了多径效应对于循环前缀数据的“污染”效应，对该算法进行了优化，提高了算法的频移估计性能，并对该算法进行了性能验证。
English Description：
On the basis of studying the transmission model of ultra-high speed OFDM system, the transmission signal structure of OFDM system is analyzed. Combined with the traditional Doppler frequency shift algorithm, the Doppler frequency shift estimation method with good real-time performance is designed by using the relative frequency offset information contained in the cyclic prefix of OFDM signal, and the "pollution" effect of multipath effect on the cyclic prefix data is analyzed, The algorithm is optimized to improve the performance of frequency shift estimation, and the performance of the algorithm is verified