ookd.m

来自「ASK, OOK, FSK, BPSK, QPSK, 8PSK(ofdm)de的」· M 代码 · 共 42 行

function ookd(g,f)

%Modulation  OOK
% Example:
% ookd([1 1 0 1 0],2)
if nargin > 2
    error('Too many input arguments');
elseif nargin==1
    f=1;
end

if f<1;
    error('Frequency must be bigger than 1');
end

t=0:2*pi/99:2*pi;
cp=[];sp=[];
mod=[];mod1=[];bit=[];

for n=1:length(g);
    if g(n)==0;
        die=zeros(1,100);   %Modulante
        se=zeros(1,100);    %Se馻l
    else g(n)==1;
        die=ones(1,100);    %Modulante
        se=ones(1,100);     %Se馻l
    end
    c=sin(f*t);
    cp=[cp die];
    mod=[mod c];
    bit=[bit se];
end

ook=cp.*mod;
subplot(2,1,1);plot(bit,'LineWidth',1.5);grid on;
title('Binary Signal');
axis([0 100*length(g) -2.5 2.5]);


subplot(2,1,2);plot(ook,'LineWidth',1.5);grid on;
title('OOK modulation');
axis([0 100*length(g) -2.5 2.5]);