shiyan\dec2QOH.m ......\genrand.m ......\getmapping.m ......\invmapping.m ......\main.m ......\main1.asv ......\main1.m ......\QOH2dec.m ......\reccdma.m ......\subsamp.m ......\trancdma.m ......\walsh.m ......\zerohold.m shiyan