%%
clear
close?all
clc

%%?初始化
%?Define?parameters.
M?=?4;?????????????????????%?Size?of?signal?constellation
k?=?log2（M）;????????????????%?Number?of?bits?per?symbol
n?=?k*1e5;????????????????????%?Number?of?bits?to?process
nSamp?=?20;??????????????????%?Oversampling?rate
Rb=1;
fs=Rb*nSamp;

%%?生成調制解調器
hMod?=?modem.dpskmod（‘M‘?M?‘SymbolOrder‘?‘Gray‘‘InPutType‘?‘Bit‘）;?
hDemod?=?modem.dpskdemod（hMod）;??

%%?信號源
%?Create?a?binary?data?stream?as?a?column?vector.
x?=?randi（[0?1]n1）;?%?Random?binary?data?stream

%%?信道編碼
%?Define?a?convolutional?coding?trellis?and?use?it
%?to?encode?the?binary?data.
t?=?poly2trellis（[5?4][23?35?0;?0?5?13]）;?%?Trellis
code?=?convenc（xt）;?%?Encode.
coderate?=?2/3;

%%?調制
%?Modulate?using?16-QAM.
%?y?=?modulate（hModx）;
y?=?

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件????????4946??2013-06-27?20:19??FSK.m
?????文件????????4888??2013-07-01?19:21??MSK.m
?????文件????????4784??2013-06-28?08:37??PSK.m
?????文件????????5064??2013-06-28?08:34??QAM.m
?????文件????????4358??2013-06-27?20:44??DPSK.m