?? genrand.m
字號(hào):
function Datatx = genrand(NumSymb,wordsize,NumCarr,seed)
%GENRAND Generates random data to transmit
% Datatx = genrand(NumSymb,wordsize,NumCarr)
%
% Datatx = genrand(NumSymb,wordsize,NumCarr,seed)
% If a seed is given the the random data will always
% be the same when the same seed is given.
% Note : the previous random seed is unaffected.
if nargin == 4,
prevseed = rand('seed'); %Save the old random seed
rand('seed',seed); %Set to new seed
Datatx = floor(rand(NumSymb,NumCarr)*(2^wordsize)); %Generate the data
rand('seed',prevseed); %Restore the old seed
else
Datatx = floor(rand(NumSymb,NumCarr)*(2^wordsize)); %Generate the data
end
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