%XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
%XXXX?QPSK?Modulation?and?Demodulation?without?consideration?of?noise?XXXXX
%XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX


clc;
clear?all;
close?all;
data=[0??1?0?1?1?1?0?0?1?1];?%?information

%Number_of_bit=1024;
%data=randint（Number_of_bit1）;

figure（1）
stem（data?‘linewidth‘3）?grid?on;
title（‘??Information?before?Transmiting?‘）;
axis（[?0?11?0?1.5]）;

data_NZR=2*data-1;?%?Data?Represented?at?NZR?form?for?QPSK?modulation
s_p_data=reshape（data_NZR2length（data）/2）;??%?S/P?convertion?of?data


br=10.^6;?%Let?us?transmission?bit?rate??1000000
f=br;?%?minimum?carrier?frequency
T=1/br;?%?bit?duration
t=T/99:T/99:T;?%?Time?vector?for?one?bit?information



%?XXXXXXXXXXXXXXXXXXXXXXX?QPSK?modulatio??XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
y=[];
y_in=[];
y_qd=[];
for（i=1:length（data）/2）
????y1=s_p_data（1i）*cos（2*pi*f*t）;?%?inphase?component
????y2=s_p_da

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件????????3058??2018-06-06?12:53??QPSK_MOD_DEMOD_SALIMup.m
?????文件????????1314??2018-06-06?12:53??license.txt