DS\despread.m ..\dscdma.asv ..\dscdma.m ..\Gold_AWGN.m ..\mseq.asv ..\mseq.m ..\m_AWGN.m ..\rayleigh.m ..\shift.asv ..\shift.m ..\spread.m ..\zhu.asv ..\zhu.m ..\zhuchengxu.m DS