pam_constellation.m

基于Matlab

function [C,csig] = pam_constellation(M)

% check if valid M 
if M/2 ~= floor(M/2),
   error('M must be an even integer'); 
end


% generate constellation points at +/-{1,3,5,7,etc.}
C=2*[0:M-1]-M+1;
csig=sqrt(mean(abs(C).^2));
C=C(:)/csig;