gcrcrec: Crazy Climbers Reconstruction by Penalization
In Rwave: Time-Frequency analysis of 1-D signals

Description Usage Arguments Details Value References See Also

Reconstructs a real-valued signal from ridges found by crazy climbers on a Gabor transform.

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gcrcrec(siginput, inputgt, beemap, nvoice, freqstep, scale, compr,
        bstep=5, ptile=0.01, epsilon=0, fast=TRUE, para=5, minnbnodes=3,
        hflag=FALSE, real=FALSE, plot=2)

`siginput`	original signal.
`inputgt`	Gabor transform.
`beemap`	occupation measure, output of `crc`.
`nvoice`	number of frequencies.
`freqstep`	sampling step for frequency axis.
`scale`	size of windows.
`compr`	compression rate to be applied to the ridges.
`bstep`	size (in the time direction) of the steps for chaining.
`ptile`	threshold of ridge
`epsilon`	constant in front of the smoothness term in penalty function.
`fast`	if set to TRUE, uses trapezoidal rule to evaluate Q_2.
`para`	scale parameter for extrapolating the ridges.
`minnbnodes`	minimal number of points per ridge.
`hflag`	if set to FALSE, uses the identity as first term in the kernel. If not, uses Q_1 instead.
`real`	if set to `TRUE`, uses only real constraints.
`plot`	1 displays signal,components, and reconstruction one after another. 2 displays signal, components and reconstruction.