function?[y]=8psk（x）
%?y=?8psk（x）
%?x?為經過信源調制后信息bit符號
%?y?為經過信道編碼（8psk）調制后的符號
%?????????????????????????????|???
%?????????????????????????????4
%???????????????????????3?????|????2
%?????????????－－－－7－－－－－－－－1－－－????????
%???????????????????????8?????|????5???
%?????????????????????????????6?
%?????????????????????????????|???
%
%星座圖表
%星座映射采用Gray碼，能夠改善系統性能
%?Gray:mapping_matrix=[1?2?4?3?7?8?6?5]=[000?001?011?010?110?111?101?100]
%實際映射矩陣[000?001?010?011?100?101?110?111]=[1?2?3?4?5?6?7?8]
%?建立符號映射關系
%得到星座圖映射矩陣
mapping=[1sqrt（2）/2+sqrt（2）/2*j-sqrt（2）/2+sqrt（2）/2*jjsqrt（2）/2-sqrt（2）/2*j-j-1-sqrt（2）/2-sqrt（2）/2*j];?
%?取得輸入二進制序列長度
len=length（x）/3;
%對輸入bit流進行星座映射，得到8psk調制符號
y=zeros（1len）;
for?I=1:len?
????temp=x（3*（I-1）+1）*4+x（3*（I-1）+2）*2+x（3*I）;
????y（I）=mapping（temp+1）;
end

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2014-10-05?14:09??OFDM2\
?????文件?????????930??2006-11-09?15:12??OFDM2\8psk.m
?????文件????????1363??2006-06-05?10:37??OFDM2\Jakes_gen.m
?????文件?????????924??2006-09-21?14:18??OFDM2\bpsk.m
?????文件????????1301??2005-03-18?23:00??OFDM2\convolutional_en.m
?????文件?????????490??2006-11-05?17:27??OFDM2\data.mat
?????文件????????2316??2006-09-27?10:31??OFDM2\de8psk.m
?????文件????????1197??2006-10-16?14:21??OFDM2\de_interleaving.m
?????文件????????1043??2006-09-21?14:17??OFDM2\debpsk.m
?????文件?????????389??2006-07-18?08:31??OFDM2\decbin.m
?????文件?????????298??2006-09-21?09:17??OFDM2\deci2bin.m
?????文件????????1347??2006-10-13?08:46??OFDM2\deofdm.m
?????文件????????2819??2006-09-21?08:31??OFDM2\deqam4.asv
?????文件????????2820??2006-09-20?15:55??OFDM2\deqam4.m
?????文件????????2094??2005-07-26?10:23??OFDM2\deqam8.m
?????文件????????2034??2006-09-21?16:05??OFDM2\deqpsk.asv
?????文件????????2081??2006-10-13?08:31??OFDM2\deqpsk.m
?????文件?????????458??2006-10-13?08:43??OFDM2\equal.m
?????文件?????????561??2006-10-30?13:37??OFDM2\equal_MMSE.m
?????文件?????????485??2006-06-05?10:38??OFDM2\equal_ZF.m
?????文件???????22691??2006-11-05?17:25??OFDM2\err_b_position_1.mat
?????文件???????22021??2006-11-05?17:27??OFDM2\err_b_position_2.mat
?????文件???????21811??2006-11-05?17:16??OFDM2\err_b_position_3.mat
?????文件???????21233??2006-11-05?17:18??OFDM2\err_b_position_4.mat
?????文件???????21006??2006-11-05?17:20??OFDM2\err_b_position_5.mat
?????文件?????????190??2006-11-05?17:25??OFDM2\err_p_position_1.mat
?????文件?????????190??2006-11-05?17:27??OFDM2\err_p_position_2.mat
?????文件?????????190??2006-11-05?17:16??OFDM2\err_p_position_3.mat
?????文件?????????190??2006-11-05?17:18??OFDM2\err_p_position_4.mat
?????文件?????????190??2006-11-05?17:20??OFDM2\err_p_position_5.mat
?????文件????????3283??2005-03-17?23:00??OFDM2\interleav_matrix.m
............此處省略10個文件信息