t=linspace（010.22512）;
s=4*sin（pi*t/50）.*sin（6*pi*t）+cos（pi*t.*t/4）;
figure（1）
plot（ts）;
xlabel（‘Time/s‘）;
ylabel（‘Amplitude‘）;
[imfortnbits]?=?emd（s）;
imf=imf‘;
[nk]=size（imf）;
figure（2）
nt=plot6c（timf1）;
xlabel（‘Time/s‘）;
for?i=1:5
da（:i）=imf（:i）;
end
[WA]=desa1（da0.02）;

figure（3）
subplot（211）;
plot（tW（:1））;
xlabel（‘Time/s‘）;
ylabel（‘Frequency/Hz‘）;
subplot（212）;
plot（tA（:1））;
xlabel（‘Time/s‘）;
ylabel（‘Amplitude‘）;
figure（4）
subplot（211）;
plot（tW（:2））;
xlabel（‘Time/s‘）;
ylabel（‘Frequency/Hz‘）;
subplot（212）;
plot（tA（:2））;
xlabel（‘Time/s‘）;
ylabel（‘Amplitude‘）;

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-03-06?15:26??hht_toolbox_20040808\
?????目錄???????????0??2018-03-06?15:26??hht_toolbox_20040808\@components\
?????文件????????1045??2009-04-22?09:27??hht_toolbox_20040808\@components\apply.m
?????文件?????????718??2009-04-22?09:27??hht_toolbox_20040808\@components\char.m
?????文件????????3431??2009-04-22?09:27??hht_toolbox_20040808\@components\compare.m
?????文件????????2363??2009-04-22?09:27??hht_toolbox_20040808\@components\components.m
?????文件????????1010??2009-04-22?09:27??hht_toolbox_20040808\@components\Contents.m
?????文件?????????188??2009-04-22?09:27??hht_toolbox_20040808\@components\display.m
?????文件?????????812??2009-04-22?09:27??hht_toolbox_20040808\@components\double.m
?????文件????????4124??2009-04-22?09:27??hht_toolbox_20040808\@components\fa.m
?????文件?????????174??2009-04-22?09:27??hht_toolbox_20040808\@components\faz.m
?????文件????????1761??2009-04-22?09:27??hht_toolbox_20040808\@components\get.m
?????文件????????1238??2009-04-22?09:27??hht_toolbox_20040808\@components\hist.m
?????文件?????????157??2009-04-22?09:27??hht_toolbox_20040808\@components\max.m
?????文件?????????157??2009-04-22?09:27??hht_toolbox_20040808\@components\min.m
?????文件????????1842??2009-04-22?09:27??hht_toolbox_20040808\@components\mspec.m
?????文件????????1958??2009-04-22?09:27??hht_toolbox_20040808\@components\nsp.m
?????文件????????4792??2009-04-22?09:27??hht_toolbox_20040808\@components\nspplot.m
?????文件????????1727??2009-04-22?09:27??hht_toolbox_20040808\@components\plot.m
?????文件????????1248??2009-04-22?09:27??hht_toolbox_20040808\@components\splinenormalize.m
?????文件?????????795??2009-04-22?09:27??hht_toolbox_20040808\@components\subsref.m
?????文件?????????204??2009-04-22?09:27??hht_toolbox_20040808\@components\sum.m
?????目錄???????????0??2018-03-06?15:26??hht_toolbox_20040808\dfequations\
?????文件?????????565??2009-04-22?09:27??hht_toolbox_20040808\dfequations\dufng.asv
?????文件?????????563??2009-04-22?09:27??hht_toolbox_20040808\dfequations\dufng.m
?????文件?????????611??2009-04-22?09:27??hht_toolbox_20040808\dfequations\mbssel.m
?????文件???????23552??2009-04-22?09:27??hht_toolbox_20040808\dfequations\RefTable1.doc
?????文件?????????568??2009-04-22?09:27??hht_toolbox_20040808\dfequations\rslr.m
?????目錄???????????0??2018-03-06?15:26??hht_toolbox_20040808\disfunctional\
?????文件?????????310??2009-04-22?09:27??hht_toolbox_20040808\disfunctional\bmovi.m
?????文件???????36864??2009-04-22?09:27??hht_toolbox_20040808\disfunctional\dumpmemmex.dll
............此處省略300個文件信息