sefade.m

OFDM系统仿真

function[iout,qout,ramp,rcos,rsin]=sefade(idata,qdata,itau,dlvl,th,n0,itn,n1,nsamp,tstp,fd,flat)
iout = zeros(1,nsamp);
qout = zeros(1,nsamp);
total_attn = sum(10 .^( -1.0 .* dlvl ./ 10.0));
for k=1:n1
atts = 10.^( -0.05 .* dlvl(k));
if dlvl(k) == 40.0
atts = 0.0;
end
theta = th(k) .* pi ./ 180.0;
[itmp,qtmp] = delay (idata,qdata,nsamp,itau(k));
[itmp3,qtmp3,ramp,rcos,rsin] = fade (itmp,qtmp,nsamp,tstp,fd,n0(k),itn(k),flat);
iout = iout + atts .* itmp3 ./ sqrt(total_attn);
qout = qout + atts .* qtmp3 ./ sqrt(total_attn);
end