differential encoding of binary sequence
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Hiiiiiii
I would like to do dpsk modulation in matlab. As I understood dpsk is differing from bpsk interms of differential encoding of input binary sequence and that is given to input for bpsk. I did the XOR operation of input sequence and given to bpsk. But my ouput same as bpsk(ie: the phase shift is taking place for every bit transition). Actually as per dpsk when
input bit is 1----------- tranisition, input bit is 0--------- No transition. This is not happening here. I think I am doing wrong in differential encoding. please could someone help in this.
clc;
clear all;
close all;
b = [0 1 1 1 1 1 0 1];
% n=length(b);
M(1) =1;
for k=1:length(b)
M(k+1)=bitxor(M(k),b(k));
end
n =length(M);
I don't know how to take bitdelay in matlab for differential encoder. please suggest solution for this
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