ridrec {Rwave}R Documentation

Reconstruction from a Ridge

Description

Reconstructs signal from sample of a ridge, in the wavelet case.

Usage

ridrec(cwtinput, node, phinode, noct, nvoice, Qinv, epsilon, np,
w0=2 * pi, check=FALSE, real=FALSE)

Arguments

cwtinput wavelet transform, output of cwt.
node time coordinates of the ridge samples.
phinode scale coordinates of the ridge samples.
noct number of octaves (powers of 2).
nvoice number of different scales per octave.
Qinv inverse of the matrix Q of the quadratic form.
epsilon coefficient of the Q_2 term in reconstruction kernel
np number of samples of the reconstructed signal.
w0 central frequency of Morlet wavelet.
check if set to TRUE, computes cwt of reconstructed signal.
real if set to TRUE, uses only constraints on the real part of the transform.

Value

Returns a list containing the reconstructed signal and the chained ridges.
sol reconstruction from a ridge
A <wavelets,dualwavelets> matrix
lam coefficients of dual wavelets in reconstructed signal.
dualwave array containing the dual wavelets.
morvelets array of morlet wavelets located on the ridge samples.
solskel wavelet transform of sol, restricted to the ridge
inputskel wavelet transform of signal, restricted to the ridge

References

See discussions in the text of “Practical Time-Frequency Analysis”.

See Also

sridrec, regrec, regrec2.


[Package Rwave version 1.24-2 Index]