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<p>Compute intermediate samples between signal samples x(k*Ts)This implements a Mininum Mean Squared Error interpolator with 8 taps. It is suitable for signals where the bandwidth of interest B = 1/(4*Ts) Where Ts is the time between samples.
<a href="classgri__mmse__fir__interpolator__cc.html#details">More...</a></p>
<p><code>#include <<a class="el" href="gri__mmse__fir__interpolator__cc_8h_source.html">gri_mmse_fir_interpolator_cc.h</a>></code></p>
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Public Member Functions</h2></td></tr>
<tr class="memitem:ab40613fad362ff3891d8be5ed344a978"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgri__mmse__fir__interpolator__cc.html#ab40613fad362ff3891d8be5ed344a978">gri_mmse_fir_interpolator_cc</a> ()</td></tr>
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<tr class="memitem:a3ec67acb5153b1ab71306855bcb0ab55"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgri__mmse__fir__interpolator__cc.html#a3ec67acb5153b1ab71306855bcb0ab55">~gri_mmse_fir_interpolator_cc</a> ()</td></tr>
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<tr class="memitem:aa297b945c52bc8176c731e58f7ee9aa6"><td class="memItemLeft" align="right" valign="top">unsigned </td><td class="memItemRight" valign="bottom"><a class="el" href="classgri__mmse__fir__interpolator__cc.html#aa297b945c52bc8176c731e58f7ee9aa6">ntaps</a> () const </td></tr>
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<tr class="memitem:a2d7ae1765a3919468ee4445328d33844"><td class="memItemLeft" align="right" valign="top">unsigned </td><td class="memItemRight" valign="bottom"><a class="el" href="classgri__mmse__fir__interpolator__cc.html#a2d7ae1765a3919468ee4445328d33844">nsteps</a> () const </td></tr>
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<tr class="memitem:a1da35404c1cd133a4bbd7347c1e49441"><td class="memItemLeft" align="right" valign="top"><a class="el" href="gr__complex_8h.html#aec4bfe41433369afae9327f1b0bc9109">gr_complex</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgri__mmse__fir__interpolator__cc.html#a1da35404c1cd133a4bbd7347c1e49441">interpolate</a> (const <a class="el" href="gr__complex_8h.html#aec4bfe41433369afae9327f1b0bc9109">gr_complex</a> input[], float mu)</td></tr>
<tr class="memdesc:a1da35404c1cd133a4bbd7347c1e49441"><td class="mdescLeft"> </td><td class="mdescRight">compute a single interpolated output value. <a href="#a1da35404c1cd133a4bbd7347c1e49441"></a><br/></td></tr>
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Protected Attributes</h2></td></tr>
<tr class="memitem:a339ff39a576abda306191912ebe7a249"><td class="memItemLeft" align="right" valign="top">std::vector< gr_fir_ccf * > </td><td class="memItemRight" valign="bottom"><a class="el" href="classgri__mmse__fir__interpolator__cc.html#a339ff39a576abda306191912ebe7a249">filters</a></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Compute intermediate samples between signal samples x(k*Ts)</p>
<p>This implements a Mininum Mean Squared Error interpolator with 8 taps. It is suitable for signals where the bandwidth of interest B = 1/(4*Ts) Where Ts is the time between samples. </p>
<p>Although mu, the fractional delay, is specified as a float, it is actually quantized. 0.0 <= mu <= 1.0. That is, mu is quantized in the interpolate method to 32nd's of a sample.</p>
<p>For more information, in the GNU Radio source code, see: </p>
<ul>
<li>gnuradio-core/src/gen_interpolator_taps/README </li>
<li>gnuradio-core/src/gen_interpolator_taps/praxis.txt </li>
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<td class="memname"><a class="el" href="gr__complex_8h.html#aec4bfe41433369afae9327f1b0bc9109">gr_complex</a> gri_mmse_fir_interpolator_cc::interpolate </td>
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<td class="paramtype">const <a class="el" href="gr__complex_8h.html#aec4bfe41433369afae9327f1b0bc9109">gr_complex</a> </td>
<td class="paramname"><em>input</em>[], </td>
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<td class="paramtype">float </td>
<td class="paramname"><em>mu</em> </td>
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<p>compute a single interpolated output value. </p>
<p><code>input</code> must have <a class="el" href="classgri__mmse__fir__interpolator__cc.html#aa297b945c52bc8176c731e58f7ee9aa6">ntaps()</a> valid entries and be 8-byte aligned. input[0] .. input[<a class="el" href="classgri__mmse__fir__interpolator__cc.html#aa297b945c52bc8176c731e58f7ee9aa6">ntaps()</a> - 1] are referenced to compute the output value. </p>
<dl class="exception"><dt>Exceptions</dt><dd>
<table class="exception">
<tr><td class="paramname">std::invalid_argument</td><td>if input is not 8-byte aligned.</td></tr>
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</dd>
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<p><code>mu</code> must be in the range [0, 1] and specifies the fractional delay.</p>
<dl class="section return"><dt>Returns</dt><dd>the interpolated input value. </dd></dl>
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<hr/>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="gri__mmse__fir__interpolator__cc_8h_source.html">gri_mmse_fir_interpolator_cc.h</a></li>
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