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<title>GNU Radio 3.3.0 C++ API: gri_mmse_fir_interpolator_cc Class Reference</title>
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<h1>gri_mmse_fir_interpolator_cc Class Reference</h1><!-- doxytag: class="gri_mmse_fir_interpolator_cc" -->
<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.
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<p><code>#include <<a class="el" href="gri__mmse__fir__interpolator__cc_8h_source.html">gri_mmse_fir_interpolator_cc.h</a>></code></p>
<p><a href="classgri__mmse__fir__interpolator__cc-members.html">List of all members.</a></p>
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<tr><td colspan="2"><h2>Public Member Functions</h2></td></tr>
<tr><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>
<tr><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>
<tr><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>
<tr><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>
<tr><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><td class="mdescLeft"> </td><td class="mdescRight">compute a single interpolated output value. <a href="#a1da35404c1cd133a4bbd7347c1e49441"></a><br/></td></tr>
<tr><td colspan="2"><h2>Protected Attributes</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classstd_1_1vector.html">std::vector</a>< <a class="el" href="classgr__fir__ccf.html">gr_fir_ccf</a> * > </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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<hr/><a name="_details"></a><h2>Detailed Description</h2>
<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>
<hr/><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" id="ab40613fad362ff3891d8be5ed344a978"></a><!-- doxytag: member="gri_mmse_fir_interpolator_cc::gri_mmse_fir_interpolator_cc" ref="ab40613fad362ff3891d8be5ed344a978" args="()" -->
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<td class="memname">gri_mmse_fir_interpolator_cc::gri_mmse_fir_interpolator_cc </td>
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<a class="anchor" id="a3ec67acb5153b1ab71306855bcb0ab55"></a><!-- doxytag: member="gri_mmse_fir_interpolator_cc::~gri_mmse_fir_interpolator_cc" ref="a3ec67acb5153b1ab71306855bcb0ab55" args="()" -->
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<td class="memname">gri_mmse_fir_interpolator_cc::~gri_mmse_fir_interpolator_cc </td>
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<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="a1da35404c1cd133a4bbd7347c1e49441"></a><!-- doxytag: member="gri_mmse_fir_interpolator_cc::interpolate" ref="a1da35404c1cd133a4bbd7347c1e49441" args="(const gr_complex input[], float mu)" -->
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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><td> </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><dt><b>Exceptions:</b></dt><dd>
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<p><code>mu</code> must be in the range [0, 1] and specifies the fractional delay.</p>
<dl class="return"><dt><b>Returns:</b></dt><dd>the interpolated input value. </dd></dl>
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<a class="anchor" id="a2d7ae1765a3919468ee4445328d33844"></a><!-- doxytag: member="gri_mmse_fir_interpolator_cc::nsteps" ref="a2d7ae1765a3919468ee4445328d33844" args="() const " -->
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<td class="memname">unsigned gri_mmse_fir_interpolator_cc::nsteps </td>
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<a class="anchor" id="aa297b945c52bc8176c731e58f7ee9aa6"></a><!-- doxytag: member="gri_mmse_fir_interpolator_cc::ntaps" ref="aa297b945c52bc8176c731e58f7ee9aa6" args="() const " -->
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<td class="memname">unsigned gri_mmse_fir_interpolator_cc::ntaps </td>
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<hr/><h2>Member Data Documentation</h2>
<a class="anchor" id="a339ff39a576abda306191912ebe7a249"></a><!-- doxytag: member="gri_mmse_fir_interpolator_cc::filters" ref="a339ff39a576abda306191912ebe7a249" args="" -->
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<td class="memname"><a class="el" href="classstd_1_1vector.html">std::vector</a><<a class="el" href="classgr__fir__ccf.html">gr_fir_ccf</a> *> <a class="el" href="classgri__mmse__fir__interpolator__cc.html#a339ff39a576abda306191912ebe7a249">gri_mmse_fir_interpolator_cc::filters</a><code> [protected]</code></td>
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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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