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<h1>atsci_equalizer_lms.h</h1><a href="atsci__equalizer__lms_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* -*- c++ -*- */</span>
<a name="l00002"></a>00002 <span class="comment">/*</span>
<a name="l00003"></a>00003 <span class="comment"> * Copyright 2002 Free Software Foundation, Inc.</span>
<a name="l00004"></a>00004 <span class="comment"> * </span>
<a name="l00005"></a>00005 <span class="comment"> * This file is part of GNU Radio</span>
<a name="l00006"></a>00006 <span class="comment"> * </span>
<a name="l00007"></a>00007 <span class="comment"> * GNU Radio is free software; you can redistribute it and/or modify</span>
<a name="l00008"></a>00008 <span class="comment"> * it under the terms of the GNU General Public License as published by</span>
<a name="l00009"></a>00009 <span class="comment"> * the Free Software Foundation; either version 3, or (at your option)</span>
<a name="l00010"></a>00010 <span class="comment"> * any later version.</span>
<a name="l00011"></a>00011 <span class="comment"> * </span>
<a name="l00012"></a>00012 <span class="comment"> * GNU Radio is distributed in the hope that it will be useful,</span>
<a name="l00013"></a>00013 <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00014"></a>00014 <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
<a name="l00015"></a>00015 <span class="comment"> * GNU General Public License for more details.</span>
<a name="l00016"></a>00016 <span class="comment"> * </span>
<a name="l00017"></a>00017 <span class="comment"> * You should have received a copy of the GNU General Public License</span>
<a name="l00018"></a>00018 <span class="comment"> * along with GNU Radio; see the file COPYING. If not, write to</span>
<a name="l00019"></a>00019 <span class="comment"> * the Free Software Foundation, Inc., 51 Franklin Street,</span>
<a name="l00020"></a>00020 <span class="comment"> * Boston, MA 02110-1301, USA.</span>
<a name="l00021"></a>00021 <span class="comment"> */</span>
<a name="l00022"></a>00022
<a name="l00023"></a>00023 <span class="preprocessor">#ifndef _ATSC_EQUALIZER_LMS_H_</span>
<a name="l00024"></a>00024 <span class="preprocessor"></span><span class="preprocessor">#define _ATSC_EQUALIZER_LMS_H_</span>
<a name="l00025"></a>00025 <span class="preprocessor"></span>
<a name="l00026"></a>00026 <span class="preprocessor">#include <<a class="code" href="atsci__equalizer_8h.html">atsci_equalizer.h</a>></span>
<a name="l00027"></a>00027 <span class="preprocessor">#include <vector></span>
<a name="l00028"></a>00028 <span class="preprocessor">#include <stdio.h></span>
<a name="l00029"></a>00029
<a name="l00030"></a><a class="code" href="classatsci__equalizer__lms.html">00030</a> <span class="keyword">class </span><a class="code" href="classatsci__equalizer__lms.html">atsci_equalizer_lms</a> : <span class="keyword">public</span> <a class="code" href="classatsci__equalizer.html" title="abstract base class for ATSC equalizer">atsci_equalizer</a>
<a name="l00031"></a>00031 {
<a name="l00032"></a>00032 <span class="keyword">public</span>:
<a name="l00033"></a>00033 <a class="code" href="classatsci__equalizer__lms.html#a3f8c96e777f330523325486b8d9f63d5">atsci_equalizer_lms</a> ();
<a name="l00034"></a>00034 <span class="keyword">virtual</span> <a class="code" href="classatsci__equalizer__lms.html#ab960684994bb8124d0ba3b0f69daa05b">~atsci_equalizer_lms</a> ();
<a name="l00035"></a>00035
<a name="l00036"></a>00036 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classatsci__equalizer__lms.html#ada8cd96d000ac03af7b53276651bfab7" title="reset state (e.g., on channel change)">reset</a> ();
<a name="l00037"></a>00037 <span class="keyword">virtual</span> <span class="keywordtype">int</span> <a class="code" href="classatsci__equalizer__lms.html#a175be27cd2a7066c00ef70e73a4d8a21" title="how much history the input data stream requires.">ntaps</a> () <span class="keyword">const</span>;
<a name="l00038"></a>00038 <span class="keyword">virtual</span> <span class="keywordtype">int</span> <a class="code" href="classatsci__equalizer__lms.html#a22680b8926f2ce6bd5c5fb38e25de25b" title="how many taps are &quot;in the future&quot;.">npretaps</a> () <span class="keyword">const</span>;
<a name="l00039"></a>00039
<a name="l00040"></a>00040 <span class="keyword">protected</span>:
<a name="l00041"></a><a class="code" href="classatsci__equalizer__lms.html#a38d81eba656d2fb0677ca05a148e3c80">00041</a> FILE *<a class="code" href="classatsci__equalizer__lms.html#a38d81eba656d2fb0677ca05a148e3c80">trainingfile</a>;
<a name="l00042"></a>00042 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classatsci__equalizer__lms.html#af29b102348176dc728260eb52d4954d4">filter_normal</a> (<span class="keyword">const</span> <span class="keywordtype">float</span> *input_samples,
<a name="l00043"></a>00043 <span class="keywordtype">float</span> *output_samples,
<a name="l00044"></a>00044 <span class="keywordtype">int</span> nsamples);
<a name="l00045"></a>00045
<a name="l00046"></a>00046 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classatsci__equalizer__lms.html#a4d8b1c86277efdb78890150b564b71ef">filter_data_seg_sync</a> (<span class="keyword">const</span> <span class="keywordtype">float</span> *input_samples,
<a name="l00047"></a>00047 <span class="keywordtype">float</span> *output_samples,
<a name="l00048"></a>00048 <span class="keywordtype">int</span> nsamples,
<a name="l00049"></a>00049 <span class="keywordtype">int</span> offset);
<a name="l00050"></a>00050
<a name="l00051"></a>00051 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classatsci__equalizer__lms.html#a16f3f405c5eee8cd233d87e6ee67748b">filter_field_sync</a> (<span class="keyword">const</span> <span class="keywordtype">float</span> *input_samples,
<a name="l00052"></a>00052 <span class="keywordtype">float</span> *output_samples,
<a name="l00053"></a>00053 <span class="keywordtype">int</span> nsamples,
<a name="l00054"></a>00054 <span class="keywordtype">int</span> offset,
<a name="l00055"></a>00055 <span class="keywordtype">int</span> which_field);
<a name="l00056"></a>00056
<a name="l00057"></a>00057 <span class="keyword">private</span>:
<a name="l00058"></a>00058 <a class="code" href="classstd_1_1vector.html">std::vector<double></a> d_taps;
<a name="l00059"></a>00059
<a name="l00060"></a>00060 <span class="keywordtype">void</span> filterN (<span class="keyword">const</span> <span class="keywordtype">float</span> *input_samples,
<a name="l00061"></a>00061 <span class="keywordtype">float</span> *output_samples,
<a name="l00062"></a>00062 <span class="keywordtype">int</span> nsamples);
<a name="l00063"></a>00063
<a name="l00064"></a>00064 <span class="keywordtype">void</span> adaptN (<span class="keyword">const</span> <span class="keywordtype">float</span> *input_samples,
<a name="l00065"></a>00065 <span class="keyword">const</span> <span class="keywordtype">float</span> *training_pattern,
<a name="l00066"></a>00066 <span class="keywordtype">float</span> *output_samples,
<a name="l00067"></a>00067 <span class="keywordtype">int</span> nsamples);
<a name="l00068"></a>00068
<a name="l00069"></a>00069 <span class="keywordtype">float</span> filter1 (<span class="keyword">const</span> <span class="keywordtype">float</span> input[]);
<a name="l00070"></a>00070 <span class="keywordtype">float</span> adapt1 (<span class="keyword">const</span> <span class="keywordtype">float</span> input[], <span class="keywordtype">float</span> ideal_output);
<a name="l00071"></a>00071
<a name="l00072"></a>00072 };
<a name="l00073"></a>00073
<a name="l00074"></a>00074
<a name="l00075"></a>00075 <span class="preprocessor">#endif </span><span class="comment">/* _ATSC_EQUALIZER_LMS_H_ */</span>
</pre></div></div>
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distrib
>
Mandriva
>
2010.2
>
i586
>
media
>
contrib-backports
>
by-pkgid
>
def0228095a1541e2d3632b6b6da7c38
>
files
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144
