midwt | R Documentation |
Computes the inverse discrete wavelet transform x
for
input signal y
using the scaling filter h
.
midwt(y, h, L)
y |
Finite 1D or 2D signal (implicitly periodized) |
h |
Scaling filter to be applied |
L |
Number of levels in wavelet decomposition. In the case of a 1D signal, length(x) must be divisible by 2^L; in the case of a 2D signal, the row and the column dimension must be divisible by 2^L. If no argument is specified, a full DWT is returned for maximal possible L. |
Returns a list with components:
x |
Periodic reconstructed signal |
L |
Number of levels in wavelet decomposition |
P. Roebuck proebuck1701@gmail.com
sig <- makesig(SIGNAL.LIN.CHIRP, 8) h <- daubcqf(4) L <- 1 ret.mdwt <- mdwt(sig$x, h$h.0, L) ret.midwt <- midwt(ret.mdwt$y, h$h.0, ret.mdwt$L)
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