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<h1>atsc_bit_timing_loop.h</h1><a href="atsc__bit__timing__loop_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 2006 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 <span class="preprocessor">#ifndef INCLUDED_ATSC_BIT_TIMING_LOOP_H</span>
<a name="l00023"></a>00023 <span class="preprocessor"></span><span class="preprocessor">#define INCLUDED_ATSC_BIT_TIMING_LOOP_H</span>
<a name="l00024"></a>00024 <span class="preprocessor"></span>
<a name="l00025"></a>00025 <span class="preprocessor">#include <cstdio></span>
<a name="l00026"></a>00026 <span class="preprocessor">#include <<a class="code" href="gr__block_8h.html">gr_block.h</a>></span>
<a name="l00027"></a>00027 <span class="preprocessor">#include <<a class="code" href="atsci__diag__output_8h.html">atsci_diag_output.h</a>></span>
<a name="l00028"></a>00028 <span class="preprocessor">#include <<a class="code" href="atsci__sssr_8h.html">atsci_sssr.h</a>></span>
<a name="l00029"></a>00029 <span class="preprocessor">#include <<a class="code" href="atsci__syminfo_8h.html">atsci_syminfo.h</a>></span>
<a name="l00030"></a>00030
<a name="l00031"></a>00031 <span class="keyword">class </span><a class="code" href="classatsc__bit__timing__loop.html" title="ATSC BitTimingLoop3This class accepts a single real input and produces two outputs...">atsc_bit_timing_loop</a>;
<a name="l00032"></a>00032 <span class="keyword">typedef</span> <a class="code" href="classboost_1_1shared__ptr.html" title="shared_ptr documentation stub">boost::shared_ptr<atsc_bit_timing_loop></a> <a class="code" href="classboost_1_1shared__ptr.html" title="shared_ptr documentation stub">atsc_bit_timing_loop_sptr</a>;
<a name="l00033"></a>00033
<a name="l00034"></a>00034 <a class="code" href="classboost_1_1shared__ptr.html" title="shared_ptr documentation stub">atsc_bit_timing_loop_sptr</a> <a class="code" href="atsc__bit__timing__loop_8h.html#a62698a07fec5abcc876e6247c415ae0c">atsc_make_bit_timing_loop</a>();
<a name="l00035"></a>00035 <span class="comment"></span>
<a name="l00036"></a>00036 <span class="comment">/*!</span>
<a name="l00037"></a>00037 <span class="comment"> * \brief ATSC BitTimingLoop3</span>
<a name="l00038"></a>00038 <span class="comment"> * \ingroup atsc</span>
<a name="l00039"></a>00039 <span class="comment"> *</span>
<a name="l00040"></a>00040 <span class="comment"> * This class accepts a single real input and produces two outputs,</span>
<a name="l00041"></a>00041 <span class="comment"> * the raw symbol (float) and the tag (atsc_syminfo)</span>
<a name="l00042"></a>00042 <span class="comment"> */</span>
<a name="l00043"></a><a class="code" href="classatsc__bit__timing__loop.html">00043</a> <span class="keyword">class </span><a class="code" href="classatsc__bit__timing__loop.html" title="ATSC BitTimingLoop3This class accepts a single real input and produces two outputs...">atsc_bit_timing_loop</a> : <span class="keyword">public</span> <a class="code" href="classgr__block.html" title="The abstract base class for all &#39;terminal&#39; processing blocks.A signal processing...">gr_block</a>
<a name="l00044"></a>00044 {
<a name="l00045"></a>00045 <span class="keyword">friend</span> <a class="code" href="classboost_1_1shared__ptr.html" title="shared_ptr documentation stub">atsc_bit_timing_loop_sptr</a> <a class="code" href="classatsc__bit__timing__loop.html#a62698a07fec5abcc876e6247c415ae0c">atsc_make_bit_timing_loop</a>();
<a name="l00046"></a>00046
<a name="l00047"></a>00047 <a class="code" href="classatsc__bit__timing__loop.html" title="ATSC BitTimingLoop3This class accepts a single real input and produces two outputs...">atsc_bit_timing_loop</a>();
<a name="l00048"></a>00048
<a name="l00049"></a>00049 <span class="keyword">public</span>:
<a name="l00050"></a>00050 <span class="keywordtype">int</span> <a class="code" href="classatsc__bit__timing__loop.html#aafc2d1f69b23aaa1e66d936ab2995514">work</a> (<span class="keywordtype">int</span> noutput_items,
<a name="l00051"></a>00051 <a class="code" href="classstd_1_1vector.html">gr_vector_const_void_star</a> &input_items,
<a name="l00052"></a>00052 <a class="code" href="classstd_1_1vector.html">gr_vector_void_star</a> &output_items);
<a name="l00053"></a>00053
<a name="l00054"></a><a class="code" href="classatsc__bit__timing__loop.html#ab498a7e74189eae2c749d4bd67d28d7f">00054</a> <span class="keywordtype">void</span> <a class="code" href="classatsc__bit__timing__loop.html#ab498a7e74189eae2c749d4bd67d28d7f">reset</a>() { <span class="comment">/* nop */</span> }
<a name="l00055"></a>00055
<a name="l00056"></a><a class="code" href="classatsc__bit__timing__loop.html#a57413dbad3ccd7c06a99c17be4391ff0">00056</a> <a class="code" href="classatsc__bit__timing__loop.html#a57413dbad3ccd7c06a99c17be4391ff0">~atsc_bit_timing_loop</a> () { };
<a name="l00057"></a>00057
<a name="l00058"></a>00058 <span class="keywordtype">void</span> <a class="code" href="classatsc__bit__timing__loop.html#a49cf7f38cd3b63f255f43d300bf4cfe5" title="Estimate input requirements given output request.">forecast</a> (<span class="keywordtype">int</span> noutput_items, <a class="code" href="classstd_1_1vector.html">gr_vector_int</a> &ninput_items_required);
<a name="l00059"></a>00059
<a name="l00060"></a>00060 <span class="keywordtype">int</span> <a class="code" href="classatsc__bit__timing__loop.html#aed21864e450ec11f50011141b71e2626" title="compute output items from input items">general_work</a> (<span class="keywordtype">int</span> noutput_items,
<a name="l00061"></a>00061 <a class="code" href="classstd_1_1vector.html">gr_vector_int</a> &ninput_items,
<a name="l00062"></a>00062 <a class="code" href="classstd_1_1vector.html">gr_vector_const_void_star</a> &input_items,
<a name="l00063"></a>00063 <a class="code" href="classstd_1_1vector.html">gr_vector_void_star</a> &output_items);
<a name="l00064"></a>00064
<a name="l00065"></a>00065
<a name="l00066"></a>00066 <span class="comment">// debug (NOPs)</span>
<a name="l00067"></a><a class="code" href="classatsc__bit__timing__loop.html#a6609142ff4a9c86541eb03b488660b02">00067</a> <span class="keywordtype">void</span> <a class="code" href="classatsc__bit__timing__loop.html#a6609142ff4a9c86541eb03b488660b02">set_mu</a> (<span class="keywordtype">double</span> a_mu) { }
<a name="l00068"></a><a class="code" href="classatsc__bit__timing__loop.html#a7b1125e67697ddde8ff91fe51bbc442e">00068</a> <span class="keywordtype">void</span> <a class="code" href="classatsc__bit__timing__loop.html#a7b1125e67697ddde8ff91fe51bbc442e">set_no_update</a> (<span class="keywordtype">bool</span> a_no_update) { }
<a name="l00069"></a><a class="code" href="classatsc__bit__timing__loop.html#ad9f08a571fadeacdd9c752f0bd0c151a">00069</a> <span class="keywordtype">void</span> <a class="code" href="classatsc__bit__timing__loop.html#ad9f08a571fadeacdd9c752f0bd0c151a">set_loop_filter_tap</a> (<span class="keywordtype">double</span> tap) { }
<a name="l00070"></a><a class="code" href="classatsc__bit__timing__loop.html#a4c9f26080ab7342049b234bdb32d0f6a">00070</a> <span class="keywordtype">void</span> <a class="code" href="classatsc__bit__timing__loop.html#a4c9f26080ab7342049b234bdb32d0f6a">set_timing_rate</a> (<span class="keywordtype">double</span> rate) { }
<a name="l00071"></a>00071
<a name="l00072"></a>00072
<a name="l00073"></a>00073 <span class="keyword">protected</span>:
<a name="l00074"></a>00074
<a name="l00075"></a><a class="code" href="classatsc__bit__timing__loop.html#a912645fd3a32dbe81c6f54494e842123">00075</a> <a class="code" href="classatsci__sssr.html" title="ATSC Segment and Symbol Sync Recovery.">atsci_sssr</a> <a class="code" href="classatsc__bit__timing__loop.html#a912645fd3a32dbe81c6f54494e842123">d_sssr</a>;
<a name="l00076"></a><a class="code" href="classatsc__bit__timing__loop.html#ad938892ed176aa4c64845044449f8229">00076</a> <a class="code" href="classatsci__interpolator.html" title="interpolator control for segment and symbol sync recovery">atsci_interpolator</a> <a class="code" href="classatsc__bit__timing__loop.html#ad938892ed176aa4c64845044449f8229">d_interp</a>;
<a name="l00077"></a><a class="code" href="classatsc__bit__timing__loop.html#af0364ce8290e5c46a5a8a6475d02b5db">00077</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> <a class="code" href="classatsc__bit__timing__loop.html#af0364ce8290e5c46a5a8a6475d02b5db">d_next_input</a>;
<a name="l00078"></a><a class="code" href="classatsc__bit__timing__loop.html#a26d797868156d3a5826524e1239614e4">00078</a> <span class="keywordtype">double</span> <a class="code" href="classatsc__bit__timing__loop.html#a26d797868156d3a5826524e1239614e4">d_rx_clock_to_symbol_freq</a>;
<a name="l00079"></a><a class="code" href="classatsc__bit__timing__loop.html#a8c486adf30986c87453ba6bee1a157c0">00079</a> <span class="keywordtype">int</span> <a class="code" href="classatsc__bit__timing__loop.html#a8c486adf30986c87453ba6bee1a157c0">d_si</a>;
<a name="l00080"></a>00080
<a name="l00081"></a>00081
<a name="l00082"></a>00082 };
<a name="l00083"></a>00083
<a name="l00084"></a>00084 <span class="preprocessor">#endif </span><span class="comment">/* INCLUDED_ATSC_BIT_TIMING_LOOP_H */</span>
<a name="l00085"></a>00085
<a name="l00086"></a>00086
<a name="l00087"></a>00087
</pre></div></div>
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