gmskmod1_j.m

matlab仿真用的32采样点,GMSK调制解调代码

function [y,slen]=gmskmod1_j(x)



ang=0;t=0;
load('GMSKROM1.mat','freq','ang','t','wc');


data_buf=[0 0 0];
s=zeros(length(x),length(t));
for j=1:length(x)
    
data_buf(1:2)=data_buf(2:3);
data_buf(3)=x(j);

cnt=data_buf(1)*4+data_buf(2)*2+data_buf(3);%

if j==1%
    ang0=0;
else
    ang0=outangle(j-1,end);
end
outang=ang(cnt+1,:)+ang0;

s(j,:)=exp(i*(wc*t+outang));%cos(wc*t).*cos(outang)-sin(wc*t).*sin(outang);
outangle(j,:)=outang;

end

y=reshape(s',1,size(s,1)*size(s,2));
slen=size(s,2);