中文说明：
mainMIMO_OFDMA_2Tx_SER.m: 主程序，设置各种参数
gendata.m: 生成原始信息数据的程序
mod_2Tx_STBC_DFUSC.m：调制程序
gen_SUI_CorrCIR.m: 生成信道冲击响应的程序
get_perfectCE_2x2.m: 生成理想信道估计值的程序
chanSUI_corr_2x2.m: 发送信号通过SUI信道的程序
addAWGN_2x2.m: 添加高斯白噪声的程序
dem_DFUSC_2x2_STBC.m: 接收端解调主程序
ls_freq.m: 频域LS算法
ls_time_2x2.m: 时域LS算法
ML_decision.m: Alamouti最大似然检测算法
English Description：
mainMIMO_ OFDMA_ 2Tx_ SER. m: Main program, set various parameters
gendata m: Program for generating raw information data
mod_ 2Tx_ STBC_ Dfusc.m: modulation program
gen_ SUI_ CorrCIR. m: Program for generating channel impulse response
get_ perfectCE_ 2x2.m: program for generating ideal channel estimates
chansui_ corr_ 2x2.m: program of sending signal through Sui channel
addawgn_ 2x2.m: program adding Gaussian white noise
dem_ DFUSC_ 2x2_ STBC. m: Receiver demodulation main program
ls_ Freq.m: frequency domain LS algorithm
ls_ time_ 2x2.m: time domain LS algorithm
ml_ decision. m: Alamouti maximum likelihood detection algorithm