<!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"/> <meta http-equiv="X-UA-Compatible" content="IE=9"/> <meta name="generator" content="Doxygen 1.8.8"/> <title>libosmodsp: src/cxvec_math.c File Reference</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="dynsections.js"></script> <link href="navtree.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="resize.js"></script> <script type="text/javascript" src="navtree.js"></script> <script type="text/javascript"> $(document).ready(initResizable); $(window).load(resizeHeight); </script> <link href="doxygen.css" rel="stylesheet" type="text/css" /> </head> <body> <div id="top"><!-- do not remove this div, it is closed by doxygen! --> <div id="titlearea"> <table cellspacing="0" cellpadding="0"> <tbody> <tr style="height: 56px;"> <td style="padding-left: 0.5em;"> <div id="projectname">libosmodsp  <span id="projectnumber">UNKNOWN</span> </div> <div id="projectbrief">Osmocom DSP library</div> </td> </tr> </tbody> </table> </div> <!-- end header part --> <!-- Generated by Doxygen 1.8.8 --> <div id="navrow1" class="tabs"> <ul class="tablist"> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="modules.html"><span>Modules</span></a></li> <li><a href="annotated.html"><span>Data Structures</span></a></li> <li class="current"><a href="files.html"><span>Files</span></a></li> </ul> </div> <div id="navrow2" class="tabs2"> <ul class="tablist"> <li><a href="files.html"><span>File List</span></a></li> <li><a href="globals.html"><span>Globals</span></a></li> </ul> </div> </div><!-- top --> <div id="side-nav" class="ui-resizable side-nav-resizable"> <div id="nav-tree"> <div id="nav-tree-contents"> <div id="nav-sync" class="sync"></div> </div> </div> <div id="splitbar" style="-moz-user-select:none;" class="ui-resizable-handle"> </div> </div> <script type="text/javascript"> $(document).ready(function(){initNavTree('cxvec__math_8c.html','');}); </script> <div id="doc-content"> <div class="header"> <div class="summary"> <a href="#func-members">Functions</a> </div> <div class="headertitle"> <div class="title">cxvec_math.c File Reference<div class="ingroups"><a class="el" href="group__cxvec.html">Complex vectors</a> » <a class="el" href="group__cxvec__math.html">Complex vectors math and signal processing</a></div></div> </div> </div><!--header--> <div class="contents"> <p>Osmocom Complex vectors math implementation. <a href="#details">More...</a></p> <table class="memberdecls"> <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a> Functions</h2></td></tr> <tr class="memitem:ga5ac0adb49726087258381582582ef654"><td class="memItemLeft" align="right" valign="top">struct <a class="el" href="structosmo__cxvec.html">osmo_cxvec</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__cxvec__math.html#ga5ac0adb49726087258381582582ef654">osmo_cxvec_scale</a> (const struct <a class="el" href="structosmo__cxvec.html">osmo_cxvec</a> *in, float complex scale, struct <a class="el" href="structosmo__cxvec.html">osmo_cxvec</a> *out)</td></tr> <tr class="memdesc:ga5ac0adb49726087258381582582ef654"><td class="mdescLeft"> </td><td class="mdescRight">Scale a complex vector (multiply by a constant) <a href="group__cxvec__math.html#ga5ac0adb49726087258381582582ef654">More...</a><br /></td></tr> <tr class="separator:ga5ac0adb49726087258381582582ef654"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga49125f3c259da9d7eec7fa4d98d609d4"><td class="memItemLeft" align="right" valign="top">struct <a class="el" href="structosmo__cxvec.html">osmo_cxvec</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__cxvec__math.html#ga49125f3c259da9d7eec7fa4d98d609d4">osmo_cxvec_rotate</a> (const struct <a class="el" href="structosmo__cxvec.html">osmo_cxvec</a> *in, float rps, struct <a class="el" href="structosmo__cxvec.html">osmo_cxvec</a> *out)</td></tr> <tr class="memdesc:ga49125f3c259da9d7eec7fa4d98d609d4"><td class="mdescLeft"> </td><td class="mdescRight">Rotate a complex vector (frequency shift) <a href="group__cxvec__math.html#ga49125f3c259da9d7eec7fa4d98d609d4">More...</a><br /></td></tr> <tr class="separator:ga49125f3c259da9d7eec7fa4d98d609d4"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga9fa20d926f9d313a4751cef1eff740ba"><td class="memItemLeft" align="right" valign="top">struct <a class="el" href="structosmo__cxvec.html">osmo_cxvec</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__cxvec__math.html#ga9fa20d926f9d313a4751cef1eff740ba">osmo_cxvec_delay</a> (const struct <a class="el" href="structosmo__cxvec.html">osmo_cxvec</a> *in, float delay, struct <a class="el" href="structosmo__cxvec.html">osmo_cxvec</a> *out)</td></tr> <tr class="memdesc:ga9fa20d926f9d313a4751cef1eff740ba"><td class="mdescLeft"> </td><td class="mdescRight">Fractionally delay a vector while maintaining its length. <a href="group__cxvec__math.html#ga9fa20d926f9d313a4751cef1eff740ba">More...</a><br /></td></tr> <tr class="separator:ga9fa20d926f9d313a4751cef1eff740ba"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga2ebadb16e25768896013420a98ec666f"><td class="memItemLeft" align="right" valign="top">struct <a class="el" href="structosmo__cxvec.html">osmo_cxvec</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__cxvec__math.html#ga2ebadb16e25768896013420a98ec666f">osmo_cxvec_convolve</a> (const struct <a class="el" href="structosmo__cxvec.html">osmo_cxvec</a> *f, const struct <a class="el" href="structosmo__cxvec.html">osmo_cxvec</a> *g, enum <a class="el" href="group__cxvec__math.html#ga2e183a0f24afa2e16199d1514629bf08">osmo_cxvec_conv_type</a> type, struct <a class="el" href="structosmo__cxvec.html">osmo_cxvec</a> *out)</td></tr> <tr class="memdesc:ga2ebadb16e25768896013420a98ec666f"><td class="mdescLeft"> </td><td class="mdescRight">Convolve two complex vectors. <a href="group__cxvec__math.html#ga2ebadb16e25768896013420a98ec666f">More...</a><br /></td></tr> <tr class="separator:ga2ebadb16e25768896013420a98ec666f"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga99ff6e3baec3253f4e431b156f042a0f"><td class="memItemLeft" align="right" valign="top">struct <a class="el" href="structosmo__cxvec.html">osmo_cxvec</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__cxvec__math.html#ga99ff6e3baec3253f4e431b156f042a0f">osmo_cxvec_correlate</a> (const struct <a class="el" href="structosmo__cxvec.html">osmo_cxvec</a> *f, const struct <a class="el" href="structosmo__cxvec.html">osmo_cxvec</a> *g, int g_corr_step, struct <a class="el" href="structosmo__cxvec.html">osmo_cxvec</a> *out)</td></tr> <tr class="memdesc:ga99ff6e3baec3253f4e431b156f042a0f"><td class="mdescLeft"> </td><td class="mdescRight">Cross-correlate two complex vectors. <a href="group__cxvec__math.html#ga99ff6e3baec3253f4e431b156f042a0f">More...</a><br /></td></tr> <tr class="separator:ga99ff6e3baec3253f4e431b156f042a0f"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:gacb1c646e03a09b51b617467501639763"><td class="memItemLeft" align="right" valign="top">float complex </td><td class="memItemRight" valign="bottom"><a class="el" href="group__cxvec__math.html#gacb1c646e03a09b51b617467501639763">osmo_cxvec_interpolate_point</a> (const struct <a class="el" href="structosmo__cxvec.html">osmo_cxvec</a> *cv, float pos)</td></tr> <tr class="memdesc:gacb1c646e03a09b51b617467501639763"><td class="mdescLeft"> </td><td class="mdescRight">Interpolate any fractional position in a vector using sinc filtering. <a href="group__cxvec__math.html#gacb1c646e03a09b51b617467501639763">More...</a><br /></td></tr> <tr class="separator:gacb1c646e03a09b51b617467501639763"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga495219ee953336e15cd68c9b22d3850c"><td class="memItemLeft" align="right" valign="top">float </td><td class="memItemRight" valign="bottom"><a class="el" href="group__cxvec__math.html#ga495219ee953336e15cd68c9b22d3850c">osmo_cxvec_peak_energy_find</a> (const struct <a class="el" href="structosmo__cxvec.html">osmo_cxvec</a> *cv, int win_size, enum <a class="el" href="group__cxvec__math.html#ga7942b58b341e440c0e8796d395460b78">osmo_cxvec_peak_alg</a> alg, float complex *peak_val_p)</td></tr> <tr class="memdesc:ga495219ee953336e15cd68c9b22d3850c"><td class="mdescLeft"> </td><td class="mdescRight">Find the maximum energy ( <img class="formulaInl" alt="$|x|^2$" src="form_6.png"/>) peak in a sequence. <a href="group__cxvec__math.html#ga495219ee953336e15cd68c9b22d3850c">More...</a><br /></td></tr> <tr class="separator:ga495219ee953336e15cd68c9b22d3850c"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga4579583a658fc33afd24a1d8508b212f"><td class="memItemLeft" align="right" valign="top">struct <a class="el" href="structosmo__cxvec.html">osmo_cxvec</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__cxvec__math.html#ga4579583a658fc33afd24a1d8508b212f">osmo_cxvec_sig_normalize</a> (const struct <a class="el" href="structosmo__cxvec.html">osmo_cxvec</a> *sig, int decim, float freq_shift, struct <a class="el" href="structosmo__cxvec.html">osmo_cxvec</a> *out)</td></tr> <tr class="memdesc:ga4579583a658fc33afd24a1d8508b212f"><td class="mdescLeft"> </td><td class="mdescRight">'Normalize' an IQ signal and apply decimation/frequency shift <a href="group__cxvec__math.html#ga4579583a658fc33afd24a1d8508b212f">More...</a><br /></td></tr> <tr class="separator:ga4579583a658fc33afd24a1d8508b212f"><td class="memSeparator" colspan="2"> </td></tr> </table> <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2> <div class="textblock"><p>Osmocom Complex vectors math implementation. </p> </div></div><!-- contents --> </div><!-- doc-content --> <!-- start footer part --> <div id="nav-path" class="navpath"><!-- id is needed for treeview function! --> <ul> <li class="navelem"><a class="el" href="dir_362bfe9c5d1bca12949ba6ab9ff9fc6b.html">src</a></li><li class="navelem"><a class="el" href="cxvec__math_8c.html">cxvec_math.c</a></li> <li class="footer">Generated on Fri Jan 16 2015 21:29:20 for libosmodsp by <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.8 </li> </ul> </div> </body> </html>