function HLs_test=ChannelEstimate_test(SymQAM1,SymFFTtmp,OFDM_per_Symbol,Carrier_Num)

HLs_test=[];
SymQAM2=zeros(1,Carrier_Num);
for m=1:OFDM_per_Symbol
    SymQAM2(1,:)=SymQAM1(m,:);
    SymQAM3=diag(SymQAM2);
    SymQAM4=inv(SymQAM3);
    HLs1=SymQAM4*SymFFTtmp(:,m);
    HLs_test=[HLs_test,HLs1];
end
HLs_test=HLs_test.';