<!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 3.2.2 C++ API: Signal Demodulation</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <link href="doxygen.css" rel="stylesheet" type="text/css"/> </head> <body> <!-- Generated by Doxygen 1.6.2 --> <div class="contents"> <h1>Signal Demodulation<br/> <small> [<a class="el" href="group__block.html">GNU Radio C++ Signal Processing Blocks</a>]</small> </h1> <p><div class="dynheader"> Collaboration diagram for Signal Demodulation:</div> <div class="dynsection"> <center><table><tr><td><img src="group__demodulation__blk.png" border="0" alt="" usemap="#group____demodulation____blk_map"/> <map name="group____demodulation____blk_map" id="group____demodulation____blk"> <area shape="rect" id="node3" href="group__ofdm__blk.html" title="OFDM Blocks" alt="" coords="681,25,785,55"/><area shape="rect" id="node2" href="group__block.html" title="All C++ blocks that can be used in GR graphs are listed here or in the subcategories..." alt="" coords="7,25,279,55"/></map></td></tr></table></center> </div> </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__ofdm__demapper__vcb.html">gr_ofdm_demapper_vcb</a></td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">take a stream of vectors in from an FFT and demodulate to a stream of bits. Abstract class must be subclassed with specific mapping. <a href="classgr__ofdm__demapper__vcb.html#_details">More...</a><br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top">class </td><td class="memItemRight" valign="bottom"><a class="el" href="classgr__ofdm__frame__acquisition.html">gr_ofdm_frame_acquisition</a></td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">take a vector of complex constellation points in from an FFT and performs a correlation and equalization.This block takes the output of an FFT of a received OFDM symbol and finds the start of a frame based on two known symbols. It also looks at the surrounding bins in the FFT output for the correlation in case there is a large frequency shift in the data. This block assumes that the fine frequency shift has already been corrected and that the samples fall in the middle of one FFT bin. <a href="classgr__ofdm__frame__acquisition.html#_details">More...</a><br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top">class </td><td class="memItemRight" valign="bottom"><a class="el" href="classgr__quadrature__demod__cf.html">gr_quadrature_demod_cf</a></td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">quadrature demodulator: complex in, float outThis can be used to demod FM, FSK, GMSK, etc. The input is complex baseband. <a href="classgr__quadrature__demod__cf.html#_details">More...</a><br/></td></tr> </table> <hr/><a name="_details"></a><h2>Detailed Description</h2> </div> <hr size="1"/><address style="text-align: right;"><small>Generated by <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.6.2 </small></address> </body> </html>
