mod_mask_020530b.m

来自「msk,qpsk,oqpsk,qam仿真程序」· M 代码 · 共 19 行

function y = mod_mask_020530b (x,n,M)

global k Fc Fd Fs n Fs_n;

%modulate x with wc.
wc=cos(2*pi*n*Fc);      %generate the Carrier Waveform

%%%%%%%%%%%%%%%%
%% 2ASK Modulation
if M == 2
    y = (0.2 + 0.8 * x).*wc;
end

%%%%%%%%%%%%%%%%
%% 4ASK Modulation
if M == 4
    y = (0.25 + 0.25 * x).*wc;
end