%%??學(xué)習(xí)目標(biāo)：BP神經(jīng)網(wǎng)絡(luò)
%%??函數(shù)逼近??數(shù)據(jù)壓縮???模式識別
%%??考慮要素：網(wǎng)絡(luò)層數(shù)??輸入層的節(jié)點(diǎn)數(shù)??輸出層的節(jié)點(diǎn)數(shù)??隱含層的節(jié)點(diǎn)數(shù)
%%??傳輸函數(shù)??訓(xùn)練方法
%%??對信號曲線進(jìn)行擬合
clear?all;
clear?all;
P=-1:0.04:1;
T=sin（2*pi*P）+0.1*randn（size（P））;
net=newff（PT18{}‘trainbr‘）;????%%???隱含層神經(jīng)元個數(shù)是18
net.trainParam.show=10;
net.trainParam.epochs=100;?????????%%??訓(xùn)練100次
net=train（netPT）;
Y=sim（netP）;
figure;
plot（PT‘-‘PY‘+‘）;
legend（‘原始信號‘‘網(wǎng)絡(luò)輸出信號‘）;
set（gcf‘position‘[2020500400]）;
%%???QQ：1960009019
%%???微信：13299109228
%%??微信公眾號：大仙一品堂

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件?????????605??2019-10-13?13:38??4?BP神經(jīng)網(wǎng)絡(luò)信號擬合程序\bpshenjingwangluo.m
?????目錄???????????0??2018-03-21?12:10??4?BP神經(jīng)網(wǎng)絡(luò)信號擬合程序\