完美的OFDM程序，根据短训练字的特性进行相关运算，进行信号到达检测，当检测到相关值大于门限一定次数后，认为有信号到达。然后根据长训练字的特性，进行相关运算，进行OFDM符号FFT窗口起始位置的估计。估计出FFT窗口的位置后，先在时域进行小频偏的估计，将两个长训练字进行小频偏补偿后，进行FFT运算，根据FFT运算的结果进行整数倍频偏的估计。这些参数估计完成后，就可以进行数据解调了。先对数据部分进行完整的频偏补偿，然后根据估计的FFT窗口位置进行FFT运算得到频域的数据，进行解调。然后在对应于导频的子载波位置上提取出导频信息，根据导频信息估计出剩余定时误差以及剩余的信道响应误差，将误差量送入环路进行跟踪。当收到所有数据后，重新回到信号到达检测状态，进行下一次信号到达的检测和信号接收。
资源文件列表
OFDM_rece_matlab/data_I_train_word_1_i0_256.txt , 3870
OFDM_rece_matlab/data_I_train_word_2_i0_256.txt , 3903
OFDM_rece_matlab/data_I_train_word_re_i0_256.txt , 3853
OFDM_rece_matlab/data_Q_train_word_1_i0_256.txt , 3867
OFDM_rece_matlab/data_Q_train_word_2_i0_256.txt , 3908
OFDM_rece_matlab/data_Q_train_word_re_i0_256.txt , 3854
OFDM_rece_matlab/OFDM_mod_I_ser_2up_sam_50.dat , 496240
OFDM_rece_matlab/OFDM_mod_original_data_I_ser_2up_sam_50.dat , 3908
OFDM_rece_matlab/OFDM_mod_original_data_Q_ser_2up_sam_50.dat , 3895
OFDM_rece_matlab/OFDM_mod_Q_ser_2up_sam_50.dat , 495175
OFDM_rece_matlab/v06_03_dem_2up_arrange.m , 43884
OFDM_send_matlab/data_I_train_word_1_i0_256.txt , 3870
OFDM_send_matlab/data_I_train_word_2_i0_256.txt , 3903
OFDM_send_matlab/data_I_train_word_re_i0_256.txt , 3853
OFDM_send_matlab/data_Q_train_word_1_i0_256.txt , 3867
OFDM_send_matlab/data_Q_train_word_2_i0_256.txt , 3908
OFDM_send_matlab/data_Q_train_word_re_i0_256.txt , 3854
OFDM_send_matlab/HBF23.txt , 212
OFDM_send_matlab/I1.txt , 3840
OFDM_send_matlab/I2.txt , 3840
OFDM_send_matlab/I3.txt , 3840
OFDM_send_matlab/I4.txt , 3840
OFDM_send_matlab/ofdm_mod.m , 8928
OFDM_send_matlab/OFDM的系统仿真与实现.doc , 669184
OFDM_send_matlab/SoutI_4_BF.txt , 92654
OFDM_send_matlab/SoutI_4_IF.txt , 185308