Obtain information regarding the Daubechies wavelets.
waveinfo("db")
Information on Daubechies wavelets.
Daubechies Wavelets
General characteristics: Compactly supported
wavelets with extremal phase and highest
number of vanishing moments for a given
support width. Associated scaling filters are
minimum-phase filters.
Family Daubechies
Short name db
Order N N a positive integer from 1 to 45.
Examples db1 or haar, db4, db15
Orthogonal yes
Biorthogonal yes
Compact support yes
DWT possible
CWT possible
Support width 2N-1
Filters length 2N
Regularity about 0.2 N for large N
Symmetry far from
Number of vanishing
moments for psi N
Reference: I. Daubechies,
Ten lectures on wavelets,
CBMS, SIAM, 61, 1994, 194-202.
Wavelet family short name, specified as a character vector or string
scalar. The wavelet family short name can be for a user-defined wavelet (see
wavemngr for more
information) or one of the values listed here.
Wavelet Family Short Name
Wavelet Family Name
"haar"
Haar
"db"
Daubechies
"sym"
Symlets
"coif"
Coiflets
"bior"
Biorthogonal wavelets
"fk"
Fejér-Korovkin
"bl"
Best-localized Daubechies
"mb"
Morris minimum-bandwidth
"beyl"
Beylkin
"vaid"
Vaidyanathan
"han"
Han linear-phase moments
"rbio"
Reverse biorthogonal wavelets
"meyr"
Meyer wavelet
"dmey"
Discrete approximation of Meyer wavelet
"gaus"
Gaussian wavelets
"mexh"
Mexican hat wavelet (also known as Ricker
wavelet)
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