MATLAB有哪些小波可以用作边缘检测?
说是要光滑函数的一阶导数。不知道哪些小波是符合这个条件的? 且SWT静态分解是可以用的。
看帮助有这些小波:
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Haar haar
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Daubechies db
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db1 db2 db3 db4
db5 db6 db7 db8
db9 db10 db**
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Symlets sym
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sym2 sym3 sym4 sym5
sym6 sym7 sym8 sym**
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Coiflets coif
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coif1 coif2 coif3 coif4
coif5
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BiorSplines bior
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bior1.1 bior1.3 bior1.5 bior2.2
bior2.4 bior2.6 bior2.8 bior3.1
bior3.3 bior3.5 bior3.7 bior3.9
bior4.4 bior5.5 bior6.8
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ReverseBior rbio
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rbio1.1 rbio1.3 rbio1.5 rbio2.2
rbio2.4 rbio2.6 rbio2.8 rbio3.1
rbio3.3 rbio3.5 rbio3.7 rbio3.9
rbio4.4 rbio5.5 rbio6.8
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Meyer meyr
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DMeyer dmey
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Gaussian gaus
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gaus1 gaus2 gaus3 gaus4
gaus5 gaus6 gaus7 gaus8
gaus**
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Mexican_hat mexh
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Morlet morl
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Complex Gaussian cgau
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cgau1 cgau2 cgau3 cgau4
cgau5 cgau**
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Shannon shan
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shan1-1.5 shan1-1 shan1-0.5 shan1-0.1
shan2-3 shan**
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Frequency B-Splinefbsp
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fbsp1-1-1.5 fbsp1-1-1 fbsp1-1-0.5 fbsp2-1-1
fbsp2-1-0.5 fbsp2-1-0.1 fbsp**
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Complex Morlet cmor
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cmor1-1.5 cmor1-1 cmor1-0.5 cmor1-1
cmor1-0.5 cmor1-0.1 cmor**
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SWT好像只能用这些小波:
Daubechies: 'db1' or 'haar', 'db2', ... ,'db45'
Coiflets: 'coif1', ... ,'coif5'
Symlets : 'sym2' , ... ,'sym8', ... ,'sym45'
Discrete Meyer wavelet: 'dmey'
Biorthogonal:
'bior1.1', 'bior1.3' , 'bior1.5'
'bior2.2', 'bior2.4' , 'bior2.6', 'bior2.8'
'bior3.1', 'bior3.3' , 'bior3.5', 'bior3.7'
'bior3.9', 'bior4.4' , 'bior5.5', 'bior6.8'.
Reverse Biorthogonal:
'rbio1.1', 'rbio1.3' , 'rbio1.5'
'rbio2.2', 'rbio2.4' , 'rbio2.6', 'rbio2.8'
'rbio3.1', 'rbio3.3' , 'rbio3.5', 'rbio3.7'
'rbio3.9', 'rbio4.4' , 'rbio5.5', 'rbio6.8'. 请问楼主一维数据分析,存在边缘效应吗 同问,如果仅仅是振动加速度信号,需要做边缘效应分析么?
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