readfile.asv

离散多载波传输(DMT)的MATLAB程序及注释

function y=readfile(filename)

%text file input

fid=fopen(filename,'r');
F=fread(fid);
data_samples=char(F');
cp=ceil(data_samples/32)*32-data_samples;
data_samples=[data_samples,zeros(c)];
fclose(fid);
data_in=zeros(1,8*length(data_samples));
  for i=1:length(data_samples);
      data_in(1+(i-1)*8:(i-1)*8+8)=eight2bin(data_samples(i));
  end
y=data_in;

%     
%     %sound file input
%     data_samples=wavread(filename);
%     %needs to be normalized from -1:1 to 0:255 for 8bit conversion
%     data_samples_resized=round(128*data_samples+127);
%     data_in=zeros(1,8*length(data_samples_resized));
%     for i=1:length(data_samples_resized)
%         data_in(1+(i-1)*8:(i-1)*8+8)=eight2bin(data_samples(i));
%     end
% 
% y=data_in;