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<table width="100%" summary="page for regrec2 {Rwave}"><tr><td>regrec2 {Rwave}</td><td align="right">R Documentation</td></tr></table>
<h2>Reconstruction from a Ridge</h2>
<h3>Description</h3>
<p>
Reconstructs signal from a ``regularly sampled'' ridge,
in the wavelet case, from a precomputed kernel.
</p>
<h3>Usage</h3>
<pre>
regrec2(siginput, cwtinput, phi, nbnodes, noct, nvoice, Q2,
epsilon=0.5, w0=2 * pi, plot=FALSE)
</pre>
<h3>Arguments</h3>
<table summary="R argblock">
<tr valign="top"><td><code>siginput</code></td>
<td>
input signal.
</td></tr>
<tr valign="top"><td><code>cwtinput</code></td>
<td>
wavelet transform, output of <code><a href="cwt.html">cwt</a></code>.
</td></tr>
<tr valign="top"><td><code>phi</code></td>
<td>
unsampled ridge.
</td></tr>
<tr valign="top"><td><code>nbnodes</code></td>
<td>
number of samples on the ridge
</td></tr>
<tr valign="top"><td><code>noct</code></td>
<td>
number of octaves (powers of 2)
</td></tr>
<tr valign="top"><td><code>nvoice</code></td>
<td>
number of different scales per octave
</td></tr>
<tr valign="top"><td><code>Q2</code></td>
<td>
second term of the reconstruction kernel
</td></tr>
<tr valign="top"><td><code>epsilon</code></td>
<td>
coefficient of the <i>Q_2</i> term in reconstruction kernel
</td></tr>
<tr valign="top"><td><code>w0</code></td>
<td>
central frequency of Morlet wavelet
</td></tr>
<tr valign="top"><td><code>plot</code></td>
<td>
if set to TRUE, displays original and reconstructed signals
</td></tr>
</table>
<h3>Details</h3>
<p>
The computation of the kernel may be time consuming. This function
avoids recomputing it if it was computed already.
</p>
<h3>Value</h3>
<p>
Returns a list containing:
</p>
<table summary="R argblock">
<tr valign="top"><td><code>sol</code></td>
<td>
reconstruction from a ridge.
</td></tr>
<tr valign="top"><td><code>A</code></td>
<td>
<wavelets,dualwavelets> matrix.
</td></tr>
<tr valign="top"><td><code>lam</code></td>
<td>
coefficients of dual wavelets in reconstructed signal.
</td></tr>
<tr valign="top"><td><code>dualwave</code></td>
<td>
array containing the dual wavelets.
</td></tr>
<tr valign="top"><td><code>morvelets</code></td>
<td>
array containing the wavelets on sampled ridge.
</td></tr>
<tr valign="top"><td><code>solskel</code></td>
<td>
wavelet transform of sol, restricted to the ridge.
</td></tr>
<tr valign="top"><td><code>inputskel</code></td>
<td>
wavelet transform of signal, restricted to the ridge.
</td></tr>
<tr valign="top"><td><code>nbnodes</code></td>
<td>
number of nodes used for the reconstruction.
</td></tr>
</table>
<h3>References</h3>
<p>
See discussions in the text of ``Practical Time-Frequency Analysis''.
</p>
<h3>See Also</h3>
<p>
<code><a href="regrec.html">regrec</a></code>, <code><a href="gregrec.html">gregrec</a></code>, <code><a href="ridrec.html">ridrec</a></code>,
<code><a href="sridrec.html">sridrec</a></code>.
</p>
<hr><div align="center">[Package <em>Rwave</em> version 1.24 <a href="00Index.html">Index]</a></div>
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