gray_decode.m

本程序利用改进的CHOW算法

function out=gray_encode(in)
%gray decode for 16PSK
for i=1:length(in)
  if in(i)==0 out(i)=0;
  elseif in(i)==1 out(i)=1;
  elseif in(i)==3 out(i)=2;
  elseif in(i)==2 out(i)=3;
  elseif in(i)==6 out(i)=4;
  elseif in(i)==7 out(i)=5;
  elseif in(i)==5 out(i)=6;
  elseif in(i)==4 out(i)=7;
  elseif in(i)==12 out(i)=8;
  elseif in(i)==13 out(i)=9;
  elseif in(i)==15 out(i)=10;
  elseif in(i)==14 out(i)=11;
  elseif in(i)==10 out(i)=12;
  elseif in(i)==11 out(i)=13;
  elseif in(i)==9 out(i)=14;
  elseif in(i)==8 out(i)=15;
  end
end