qam16mod.m

自己编写的简单易懂的OFDM通信系统仿真程序

function  x=qam16mod(paradata,para,ml);

d=1/sqrt(10);

for ii=1:para
    
    if paradata(ii,1)==0
        if paradata(ii,2)==0
            if paradata(ii,3)==0
                if paradata(ii,4)==0
                    temp(ii)=3*d+3*d*j;%0000
                else
                    temp=d+3*d*j;%0001
                end
            else  
               if paradata(ii,4)==0
                   temp=-3*d+3*d*j;%0010
               else
                   temp=-d+3*d*j;%0011
               end
            end
        else
            if paradata(ii,3)==0
                if paradata(ii,4)==0
                    temp(ii)=3*d+d*j;%0100
                else
                    temp(ii)=d+d*j;%0101
                end
            else
                if paradata(ii,4)==0
                    temp(ii)=-3*d+d*j;%0110
                else
                    temp(ii)=-d+d*j;%0111
                end
            end
        end
    else
        if paradata(ii,2)==0
            if paradata(ii,3)==0
                if paradata(ii,4)==0
                    temp(ii)=3*d-3*d*j;%1000
                else
                    temp(ii)=d-3*d*j;%1001
                end
            else
                if paradata(ii,4)==0
                    temp(ii)=-3*d-3*d*j;%1010
                else
                    temp(ii)=-d-3*d*j;%1011
                end
            end
        else
            if paradata(ii,3)==0
                if paradata(ii,4)==0
                    temp(ii)=3*d-d*j;%1100
                 else
                    temp(ii)=d-d*j;%1101
                end
            else
                if paradata(ii,4)==0
                    temp(ii)=-3*d-d*j;%1110
                else
                    temp(ii)=-d-d*j;%1111
                end
            end
        end
    end
end
x=temp;