%??生成三個正弦函數并計算其幅度譜
N=120;??%??采樣點數
fs=400;?%??采樣頻率
n=1:N;??%??離散時間
%??三個正弦函數和
x1=sin（2*pi*50*n/fs）;x2=sin（2*pi*100*n/fs）;x3=sin（2*pi*150*n/fs）;x=x1+x2+x3;
%??時域波形顯示
figure（1）;plot（n/fsx）;xlabel（‘離散時間?（s）‘）;ylabel（‘振幅‘）;
%??頻域幅度譜顯示
figure（2）;stem（linspace（-fs/2fs/2N）abs（fftshift（fft（x））））;xlabel（‘離散頻率?（Hz）‘）;ylabel（‘幅度譜‘）;

?屬性????????????大小?????日期????時間???名稱
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?????文件????????398??2007-08-11?08:40??《小波分析理論與MATALB?R2007?實現》\chapter1\program_01_01.m

?????文件????????233??2007-08-11?08:41??《小波分析理論與MATALB?R2007?實現》\chapter1\program_01_02.m

?????文件????????576??2007-08-11?08:42??《小波分析理論與MATALB?R2007?實現》\chapter1\program_01_03.m

?????文件????????211??2007-08-11?09:26??《小波分析理論與MATALB?R2007?實現》\chapter10\program_10_01.m

?????文件????????953??2007-08-11?09:27??《小波分析理論與MATALB?R2007?實現》\chapter10\program_10_02.m

?????文件????????696??2007-08-11?09:29??《小波分析理論與MATALB?R2007?實現》\chapter10\program_10_03.m

?????文件????????258??2007-08-11?09:29??《小波分析理論與MATALB?R2007?實現》\chapter10\program_10_04.m

?????文件????????376??2007-08-11?09:30??《小波分析理論與MATALB?R2007?實現》\chapter10\program_10_05.m

?????文件????????633??2007-08-11?09:30??《小波分析理論與MATALB?R2007?實現》\chapter10\program_10_06.m

?????文件????????337??2007-08-11?09:31??《小波分析理論與MATALB?R2007?實現》\chapter10\program_10_07.m

?????文件????????320??2007-08-11?09:31??《小波分析理論與MATALB?R2007?實現》\chapter10\program_10_08.m

?????文件????????778??2007-08-11?09:32??《小波分析理論與MATALB?R2007?實現》\chapter10\program_10_09.m

?????文件????????436??2007-08-11?09:33??《小波分析理論與MATALB?R2007?實現》\chapter10\program_10_10.m

?????文件????????333??2007-08-11?09:33??《小波分析理論與MATALB?R2007?實現》\chapter10\program_10_11.m

?????文件????????522??2007-08-11?09:34??《小波分析理論與MATALB?R2007?實現》\chapter10\program_10_12.m

?????文件???????1029??2007-08-11?09:35??《小波分析理論與MATALB?R2007?實現》\chapter10\program_10_13.m

?????文件????????604??2007-08-11?09:36??《小波分析理論與MATALB?R2007?實現》\chapter10\program_10_14.m

?????文件????????520??2007-08-11?09:36??《小波分析理論與MATALB?R2007?實現》\chapter10\program_10_15.m

?????文件???????1273??2007-08-11?09:37??《小波分析理論與MATALB?R2007?實現》\chapter10\program_10_16.m

?????文件????????196??2007-08-11?09:38??《小波分析理論與MATALB?R2007?實現》\chapter11\program_11_01.m

?????文件????????403??2007-08-11?09:39??《小波分析理論與MATALB?R2007?實現》\chapter11\program_11_02.m

?????文件????????396??2007-08-11?09:40??《小波分析理論與MATALB?R2007?實現》\chapter11\program_11_03.m

?????文件???????1083??2007-08-11?09:41??《小波分析理論與MATALB?R2007?實現》\chapter11\program_11_04.m

?????文件???????1039??2007-08-11?09:43??《小波分析理論與MATALB?R2007?實現》\chapter11\program_11_05.m

?????文件????????986??2007-08-11?09:45??《小波分析理論與MATALB?R2007?實現》\chapter11\program_11_06.m

?????文件????????617??2007-08-11?09:46??《小波分析理論與MATALB?R2007?實現》\chapter11\program_11_07.m

?????文件????????258??2007-08-11?09:46??《小波分析理論與MATALB?R2007?實現》\chapter11\program_11_08.m

?????文件????????110??2007-08-11?09:47??《小波分析理論與MATALB?R2007?實現》\chapter11\program_11_09.m

?????文件???????1814??2007-08-11?09:48??《小波分析理論與MATALB?R2007?實現》\chapter11\program_11_10.m

?????文件???????1129??2007-08-11?09:49??《小波分析理論與MATALB?R2007?實現》\chapter11\program_11_11.m

............此處省略142個文件信息