View source: R/gRidge_Recons.R

gregrec | R Documentation |

Reconstructs signal from a “regularly sampled” ridge, in the Gabor case.

gregrec(siginput, gtinput, phi, nbnodes, nvoice, freqstep, scale, epsilon=0, fast=FALSE, plot=FALSE, para=0, hflag=FALSE, real=FALSE, check=FALSE)

`siginput` |
input signal. |

`gtinput` |
Gabor transform, output of |

`phi` |
unsampled ridge. |

`nbnodes` |
number of nodes used for the reconstruction. |

`nvoice` |
number of different scales per octave |

`freqstep` |
sampling rate for the frequency axis |

`scale` |
size parameter for the Gabor function. |

`epsilon` |
coefficient of the |

`fast` |
if set to T, the kernel is computed using trapezoidal rule. |

`plot` |
if set to TRUE, displays original and reconstructed signals |

`para` |
scale parameter for extrapolating the ridges. |

`hflag` |
if set to TRUE, uses |

`real` |
if set to TRUE, uses only real constraints on the transform. |

`check` |
if set to TRUE, computes |

Returns a list containing:

`sol` |
reconstruction from a ridge. |

`A` |
<gaborlets,dualgaborlets> matrix. |

`lam` |
coefficients of dual wavelets in reconstructed signal. |

`dualwave` |
array containing the dual wavelets. |

`gaborets` |
array containing the wavelets on sampled ridge. |

`solskel` |
Gabor transform of sol, restricted to the ridge. |

`inputskel` |
Gabor transform of signal, restricted to the ridge. |

`Q2` |
second part of the reconstruction kernel. |

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

`regrec`

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