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Rwave (version 1.2)

cwtTh: Cauchy's wavelet transform

Description

Compute the continuous wavelet transform with (complex-valued) Cauchy's wavelet.

Usage

cwtTh(input, noctave, nvoice=1, moments, twoD=TRUE, plot=TRUE)

Arguments

input
input signal (possibly complex-valued).
noctave
number of powers of 2 for the scale variable.
nvoice
number of scales in each octave (i.e. between two consecutive powers of 2).
moments
number of vanishing moments.
twoD
logical variable set to T to organize the output as a 2D array (signal size x nb scales), otherwise, the output is a 3D array (signal size x noctave x nvoice).
plot
if set to T, display the modulus of the continuous wavelet transform on the graphic device.

Value

  • tmpcontinuous (complex) wavelet transform.

Details

The output contains the (complex) values of the wavelet transform of the input signal. The format of the output can be

2D array (signal size $\times$ nb scales)

3D array (signal size $\times$ noctave $\times$ nvoice)

References

See discussions in the text of ``Practical Time-Frequency Analysis''.

See Also

cwt, cwtp, DOG, gabor.