<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <title>GNU Radio 3.3.0 C++ API: gr_freq_xlating_fir_filter_fcf.h File Reference</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <link href="doxygen.css" rel="stylesheet" type="text/css"/> </head> <body> <!-- Generated by Doxygen 1.6.3 --> <div class="contents"> <h1>gr_freq_xlating_fir_filter_fcf.h File Reference</h1><code>#include <<a class="el" href="gr__sync__decimator_8h_source.html">gr_sync_decimator.h</a>></code><br/> <code>#include <<a class="el" href="gr__rotator_8h_source.html">gr_rotator.h</a>></code><br/> <div class="dynheader"> Include dependency graph for gr_freq_xlating_fir_filter_fcf.h:</div> <div class="dynsection"> <div class="center"><img src="gr__freq__xlating__fir__filter__fcf_8h__incl.png" border="0" usemap="#gr__freq__xlating__fir__filter__fcf_8h_map" alt=""/></div> <map name="gr__freq__xlating__fir__filter__fcf_8h_map" id="gr__freq__xlating__fir__filter__fcf_8h"> <area shape="rect" id="node3" href="gr__sync__decimator_8h.html" title="gr_sync_decimator.h" alt="" coords="672,83,813,112"/><area shape="rect" id="node55" href="gr__rotator_8h.html" title="gr_rotator.h" alt="" coords="831,160,919,189"/><area shape="rect" id="node5" href="gr__sync__block_8h.html" title="gr_sync_block.h" alt="" coords="661,160,779,189"/><area shape="rect" id="node7" href="gr__block_8h.html" title="gr_block.h" alt="" coords="623,237,705,267"/><area shape="rect" id="node9" href="gr__basic__block_8h.html" title="gr_basic_block.h" alt="" coords="589,315,709,344"/><area shape="rect" id="node11" href="gr__runtime__types_8h.html" title="gr_runtime_types.h" alt="" coords="811,392,944,421"/><area shape="rect" id="node25" href="gr__sptr__magic_8h_source.html" title="gr_sptr_magic.h" alt="" coords="725,469,840,499"/><area shape="rect" id="node30" href="gr__msg__accepter_8h.html" title="gr_msg_accepter.h" alt="" coords="568,392,701,421"/><area shape="rect" id="node13" href="gr__types_8h.html" title="gr_types.h" alt="" coords="864,469,947,499"/><area shape="rect" id="node21" href="gr__complex_8h.html" title="gr_complex.h" alt="" coords="1047,547,1145,576"/><area shape="rect" id="node32" href="msg__accepter_8h.html" title="gruel/msg_accepter.h" alt="" coords="555,469,701,499"/><area shape="rect" id="node34" href="pmt_8h.html" title="gruel/pmt.h" alt="" coords="475,547,560,576"/><area shape="rect" id="node50" href="pmt__sugar_8h.html" title="gruel/pmt_sugar.h" alt="" coords="483,624,608,653"/></map> </div> <p><a href="gr__freq__xlating__fir__filter__fcf_8h_source.html">Go to the source code of this file.</a></p> <table border="0" cellpadding="0" cellspacing="0"> <tr><td colspan="2"><h2>Classes</h2></td></tr> <tr><td class="memItemLeft" align="right" valign="top">class </td><td class="memItemRight" valign="bottom"><a class="el" href="classgr__freq__xlating__fir__filter__fcf.html">gr_freq_xlating_fir_filter_fcf</a></td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">FIR filter combined with frequency translation with float input, gr_complex output and float tapsThis class efficiently combines a frequency translation (typically "down conversion") with a FIR filter (typically low-pass) and decimation. It is ideally suited for a "channel selection filter" and can be efficiently used to select and decimate a narrow band signal out of wide bandwidth input. <a href="classgr__freq__xlating__fir__filter__fcf.html#_details">More...</a><br/></td></tr> <tr><td colspan="2"><h2>Functions</h2></td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classboost_1_1shared__ptr.html">gr_freq_xlating_fir_filter_fcf_sptr</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="gr__freq__xlating__fir__filter__fcf_8h.html#ae98eec795f0b87a474e7a256c54864f6">gr_make_freq_xlating_fir_filter_fcf</a> (int decimation, const <a class="el" href="classstd_1_1vector.html">std::vector</a>< float > &<a class="el" href="interpolator__taps_8h.html#a30bf032e13c2a9fc4a98e14e390cd65a">taps</a>, double center_freq, double sampling_freq)</td></tr> </table> <hr/><h2>Function Documentation</h2> <a class="anchor" id="ae98eec795f0b87a474e7a256c54864f6"></a><!-- doxytag: member="gr_freq_xlating_fir_filter_fcf.h::gr_make_freq_xlating_fir_filter_fcf" ref="ae98eec795f0b87a474e7a256c54864f6" args="(int decimation, const std::vector< float > &taps, double center_freq, double sampling_freq)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname"><a class="el" href="classboost_1_1shared__ptr.html">gr_freq_xlating_fir_filter_fcf_sptr</a> gr_make_freq_xlating_fir_filter_fcf </td> <td>(</td> <td class="paramtype">int </td> <td class="paramname"> <em>decimation</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">const <a class="el" href="classstd_1_1vector.html">std::vector</a>< float > & </td> <td class="paramname"> <em>taps</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">double </td> <td class="paramname"> <em>center_freq</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">double </td> <td class="paramname"> <em>sampling_freq</em></td><td> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td><td></td> </tr> </table> </div> <div class="memdoc"> <p>Construct a FIR filter with the given taps and a composite frequency translation that shifts center_freq down to zero Hz. The frequency translation logically comes before the filtering operation. </p> </div> </div> </div> <hr class="footer"/><address style="text-align: right;"><small>Generated on Wed Dec 29 19:51:35 2010 for GNU Radio 3.3.0 C++ API by <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.6.3 </small></address> </body> </html>