makesig: Make Signal

In rwt: 'Rice Wavelet Toolbox' Wrapper

Make Signal

Description

Creates artificial test signal identical to the standard test signals proposed and used by D. Donoho and I. Johnstone in WaveLab, a MATLAB toolbox for wavelet analysis developed at Stanford University.

Usage

makesig(sigName, N)

Arguments

sigName	character string specifying name of desired signal. Valid values are: SIGNAL.ALL SIGNAL.HEAVI.SINE SIGNAL.BUMPS SIGNAL.BLOCKS SIGNAL.DOPPLER SIGNAL.RAMP SIGNAL.CUSP SIGNAL.SING SIGNAL.HI.SINE SIGNAL.LO.SINE SIGNAL.LIN.CHIRP SIGNAL.TWO.CHIRP SIGNAL.QUAD.CHIRP SIGNAL.MISH.MASH SIGNAL.WERNER.SORROWS (Heisenberg) SIGNAL.LEOPOLD (Kronecker)
N	numeric scalar specifying length in samples of desired signal (512 by default)

Value

Returns a list with components:

x	vector (or matrix) of test signals
N	length of signal returned

Note

Using the value SIGNAL.ALL.SIG for sigName returns a matrix containing the vectors of all the other signals.

Author(s)

P. Roebuck [e-mail]

References

J. Buckheit, S. Chen, D. Donoho, I. Johnstone, & J. Scargle
WaveLab (version 0.700; 1995) [Computer software].
https://statweb.stanford.edu/~wavelab/WaveLab701.html

Examples

ret.sig <- makesig(SIGNAL.DOPPLER, 32)

rwt documentation built on June 14, 2022, 5:07 p.m.