中文说明：
空间复用空时码的仿真程序，天线配置为2发2收。mainMIMO_OFDMA_2Tx.m: 主程序，设置各种参数
gendata_2Tx_SM.m: 生成原始信息数据的程序
mod_2Tx_SM_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_SM.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
ZeroForcing_Detection.m: 迫零检测算法
mmse_Detection.m: MMSE检测算法
sphere_decoding.m: 球形检测算法
English Description：
Space multiplexing space-time code simulation program, antenna configuration for 2 transmit 2 receive mainMIMO_ OFDMA_ 2tx. M: main program, setting various parameters gendata_ 2Tx_ SM. M: program for generating raw information data mod_ 2Tx_ SM_ Dfusc. M: modulation program gen_ SUI_ Corrcir. M: program for generating channel impulse response get_ perfectCE_ 2x2. M: program for generating ideal channel estimation chanSUI_ corr_ 2x2. M: program for sending signals through Sui channel addAWGN_ 2x2. M: program for adding white Gaussian noise dem_ DFUSC_ 2x2_ SM. M: receiver demodulation main program Ls_ Freq.m: LS algorithm in frequency domain Ls_ time_ 2x2. M: time domain LS algorithm ZeroForcing_ Detection. M: zero forcing detection algorithm mmse_ Detection. M: MMSE detection algorithm sphere_ Decoding. M: sphere detection algorithm