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代码说明：

说明：  该程序实现的了2x2的mimo系统收发。运行system程序，可看到接受端的误码率曲线，星图。(the process of the realization of the 2x2 MIMO transceiver system. Operating system procedures, we can see the receiving end of BER curves, star maps.)

文件列表：

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......\calcu_bit.asv
......\calcu_bit.m
......\channel2x1.m
......\channel2x2.asv
......\channel2x2.m
......\channel44-pa-v3.mat
......\channel44-pb-v3.mat
......\channel44-vb-v500.mat
......\channel_output.m
......\chan_est.m
......\del_pilot.m
......\demod.m
......\fading_channel.m
......\insertpilot.m
......\interp_linear.m
......\mimo_channel.m
......\Modulation.m
......\mod_pattern.m
......\OFDM_demod.m
......\OFDM_mod.m
......\pilot_deleted.m
......\pilot_inserted.m
......\Read me.txt
......\scatter.asv
......\scatter.m
......\source.m
......\STBC22_demod.asv
......\STBC22_demod.m
......\STBC22_mod.m
......\system.asv
......\system.m
......\system1.asv