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資源簡介

CPM多符號檢測算法調(diào)制解調(diào),譯碼性能比viterbi譯碼優(yōu)秀2~3dB CPM multi-symbol detection algorithm modulation and demodulation, decoding performance even better than viterbi decoder 2 ~ 3dB)

資源截圖

代碼片段和文件信息

clear?all;
close?all;
clc;
EbN0dB=-10:10;%噪聲范圍
N_sample=8;%采樣數(shù)
N=1004;%產(chǎn)生的碼元數(shù)
A=1;%信號幅度
fc=2;%載波頻率
Ts=1;%信號持續(xù)周期
dt=Ts/N_sample;%抽樣間隔
gt=ones(1N_sample);
L0=5;
m=1;p=2;
h=m/p;%調(diào)制指數(shù)
Qn=generateQn(mp);
N0=10.^(-EbN0dB/10);
sigma=sqrt(N0/2);%噪聲
error=zeros(1length(N0));
for?k=1:length(N0)
????num=0;
???while?num<100
????????d=randsrc(1N);
????????dd=sigexpand(dN_sample);???
????????d_NRZ=conv(ddgt);
????????t=0:dt:N*Ts-dt;
????????s_xiangwei(1)=0;
????for?i=1:length(t)-1
??????s_xiangwei(i+1)=s_xiangwei(i)+d_NRZ(i)*dt;
????end
????s_cpfsk2=A*cos(2*pi*fc*t+pi*h*s_xiangwei(1:length(t)));
????r=A*cos(2*pi*fc*t+pi*h*s_xiangwei(1:length(t)))+sigma(k)*(randn(1length(t)));%信號加燥
????a=generate(L0);%調(diào)用generate函數(shù)產(chǎn)生一個(8,3)的所有三符號組合
????a1=a(1:);a2=a(2:);a3=a(3:);a4=a(4:);a5=a(5:);a6=a(6:);a7=a(7:);a8=a(8:);
????a9=a(9:);a10=a(10:);a11=a(11:);a12=a(12:);a13=a(13:);a14=a(14:);a15=a(15:);a16=a(16:);
????a17=a(17:);a18=a(18:);a19=a(19:);a20=a(20:);a21=a(21:);a22=a(22:);a23=a(23:);a24=a(24:);
????a25=a(25:);a26=a(26:);a27=a(27:);a28=a(28:);a29=a(29:);a30=a(30:);a31=a(31:);a32=a(32:);
????dd1=sigexpand(a1N_sample);dd2=sigexpand(a2N_sample);dd3=sigexpand(a3N_sample);dd4=sigexpand(a4N_sample);
????dd5=sigexpand(a5N_sample);dd6=sigexpand(a6N_sample);dd7=sigexpand(a7N_sample);dd8=sigexpand(a8N_sample);
????dd9=sigexpand(a9N_sample);dd10=sigexpand(a10N_sample);dd11=sigexpand(a11N_sample);dd12=sigexpand(a12N_sample);
????dd13=sigexpand(a13N_sample);dd14=sigexpand(a14N_sample);dd15=sigexpand(a15N_sample);dd16=sigexpand(a16N_sample);
????dd17=sigexpand(a17N_sample);dd18=sigexpand(a18N_sample);dd19=sigexpand(a19N_sample);dd20=sigexpand(a20N_sample);
????dd21=sigexpand(a21N_sample);dd22=sigexpand(a22N_sample);dd23=sigexpand(a23N_sample);dd24=sigexpand(a24N_sample);
????dd25=sigexpand(a25N_sample);dd26=sigexpand(a26N_sample);dd27=sigexpand(a27N_sample);dd28=sigexpand(a28N_sample);
????dd29=sigexpand(a29N_sample);dd30=sigexpand(a30N_sample);dd31=sigexpand(a31N_sample);dd32=sigexpand(a32N_sample);
????d_NRZ1=conv(dd1gt);d_NRZ2=conv(dd2gt);d_NRZ3=conv(dd3gt);d_NRZ4=conv(dd4gt);
????d_NRZ5=conv(dd5gt);d_NRZ6=conv(dd6gt);d_NRZ7=conv(dd7gt);d_NRZ8=conv(dd8gt);
????d_NRZ9=conv(dd9gt);d_NRZ10=conv(dd10gt);d_NRZ11=conv(dd11gt);d_NRZ12=conv(dd12gt);
????d_NRZ13=conv(dd13gt);d_NRZ14=conv(dd14gt);d_NRZ15=conv(dd15gt);d_NRZ16=conv(dd16gt);
????d_NRZ17=conv(dd17gt);d_NRZ18=conv(dd18gt);d_NRZ19=conv(dd19gt);d_NRZ20=conv(dd20gt);
????d_NRZ21=conv(dd21gt);d_NRZ22=conv(dd22gt);d_NRZ23=conv(dd23gt);d_NRZ24=conv(dd24gt);
????d_NRZ25=conv(dd25gt);d_NRZ26=conv(dd26gt);d_NRZ27=conv(dd27gt);d_NRZ28=conv(dd28gt);
????d_NRZ29=conv(dd29gt);d_NRZ30=conv(dd30gt);d_NRZ31=conv(dd31gt);d_NRZ32=conv(dd32gt);
????for?L=1:N-4
???????for?st=1:4
?????????s_xiangwei1(1)=Qn(st)/(pi*h);s_xiangwei2(1)=Qn(st)/(pi*h);s_xiangwei3(1)=Qn(st)/(pi*h);s_xiangwei4(1)=Qn(s

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件???????61979??2020-09-23?19:34??msd?╚2╖√║┼\3╖√║┼╧α╕╔╜Γ╡≈.jpg
?????文件???????55331??2020-09-23?19:34??msd?╚2╖√║┼\5.jpg
?????文件???????10350??2020-09-23?19:34??msd?╚2╖√║┼\FEIXIANGGAN.asv
?????文件???????10305??2020-09-23?19:34??msd?╚2╖√║┼\FEIXIANGGAN.m
?????文件?????????274??2020-09-23?19:34??msd?╚2╖√║┼\findmax.m
?????文件?????????271??2020-09-23?19:34??msd?╚2╖√║┼\fm.m
?????文件?????????419??2020-09-23?19:34??msd?╚2╖√║┼\generate.m
?????文件?????????236??2020-09-23?19:34??msd?╚2╖√║┼\generateQn.m
?????文件???????????6??2020-09-23?19:34??msd?╚2╖√║┼\read?me.txt
?????文件?????????136??2020-09-23?19:34??msd?╚2╖√║┼\sigexpand.m
?????文件????????2512??2020-09-23?19:34??msd?╚2╖√║┼\untitled.fig
?????文件???????63501??2020-09-23?19:34??msd?╚2╖√║┼\untitled.jpg

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