imodwt
Inverse maximal overlap discrete wavelet transform
Syntax
Description
reconstructs the signal based on the maximal overlap discrete wavelet transform (MODWT) coefficients inxrec
= imodwt(w
)w
. By default,imodwt
assumes that you obtainedw
using the'sym4'
wavelet with periodic boundary handling. If you do not modify the coefficients,xrec
is a perfect reconstruction of the signal.
uses the reflection boundary condition in the reconstruction. If you specifyxrec
= imodwt(___,'reflection')'reflection'
,imodwt
assumes that the length of the original signal length is one half the number of columns in the input coefficient matrix. By default,imodwt
assumes periodic signal extension at the boundary.
You must enter the entire character vector'reflection'
. If you added a wavelet named'reflection'
using the wavelet manager, you must rename that wavelet prior to using this option.'reflection'
may be placed in any position in the input argument list afterx
.
Examples
Input Arguments
Output Arguments
References
[1] Percival, Donald B., and Andrew T. Walden.小波时间序列分析的方法. Cambridge Series in Statistical and Probabilistic Mathematics. Cambridge ; New York: Cambridge University Press, 2000.
[2] Mesa, Hector. “Adapted Wavelets for Pattern Detection.” InProgress in Pattern Recognition, Image Analysis and Applications, edited by Alberto Sanfeliu and Manuel Lazo Cortés, 3773:933–44. Berlin, Heidelberg: Springer Berlin Heidelberg, 2005. https://doi.org/10.1007/11578079_96.