base demodulation function using gray code with normalization (08.11.28)
%
% ex) demod_data = base_demod(mod_data,mod_scheme)
% mod_scheme : BPSK = 1
% QPSK = 2
% 16QAM = 4
% 64QAM = 6
% 256QAM = 8
File list:
base_demod.m