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| 65 | <h1>hammcode.h</h1><a href="hammcode_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 |
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| 66 | <a name="l00029"></a>00029 <span class="preprocessor">#ifndef HAMMING_H</span> |
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| 67 | <a name="l00030"></a>00030 <span class="preprocessor"></span><span class="preprocessor">#define HAMMING_H</span> |
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| 68 | <a name="l00031"></a>00031 <span class="preprocessor"></span> |
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| 69 | <a name="l00032"></a>00032 <span class="preprocessor">#include <<a class="code" href="vec_8h.html" title="Templated Vector Class Definitions.">itpp/base/vec.h</a>></span> |
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| 70 | <a name="l00033"></a>00033 <span class="preprocessor">#include <<a class="code" href="mat_8h.html" title="Matrix Class Definitions.">itpp/base/mat.h</a>></span> |
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| 71 | <a name="l00034"></a>00034 <span class="preprocessor">#include <<a class="code" href="channel__code_8h.html" title="Channel Code class virtual interface.">itpp/comm/channel_code.h</a>></span> |
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| 72 | <a name="l00035"></a>00035 |
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| 73 | <a name="l00036"></a>00036 |
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| 74 | <a name="l00037"></a>00037 <span class="keyword">namespace </span>itpp |
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| 75 | <a name="l00038"></a>00038 { |
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| 76 | <a name="l00039"></a>00039 |
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| 77 | <a name="l00044"></a><a class="code" href="classitpp_1_1Hamming__Code.html">00044</a> <span class="keyword">class </span><a class="code" href="classitpp_1_1Hamming__Code.html" title="Binary Hamming codes.">Hamming_Code</a> : <span class="keyword">public</span> <a class="code" href="classitpp_1_1Channel__Code.html" title="Generic Channel Code class.">Channel_Code</a> |
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| 78 | <a name="l00045"></a>00045 { |
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| 79 | <a name="l00046"></a>00046 <span class="keyword">public</span>: |
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| 80 | <a name="l00048"></a>00048 <a class="code" href="classitpp_1_1Hamming__Code.html#e79a934c6b03ee606dde63126a04cc4a" title="Constructor for hamming(n,k). n = pow(2,m)-1 and k = pow(2,m)-m-1.">Hamming_Code</a>(<span class="keywordtype">int</span> m); |
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| 81 | <a name="l00049"></a>00049 |
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| 82 | <a name="l00051"></a><a class="code" href="classitpp_1_1Hamming__Code.html#cbf2a2ea27cd7549caaa6ca2522e042a">00051</a> <span class="keyword">virtual</span> <a class="code" href="classitpp_1_1Hamming__Code.html#cbf2a2ea27cd7549caaa6ca2522e042a" title="Destructor.">~Hamming_Code</a>() { } |
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| 83 | <a name="l00052"></a>00052 |
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| 84 | <a name="l00054"></a>00054 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Hamming__Code.html#0ba41d4af1fffdb67dfd027c7f0fe667" title="Hamming encoder. Will truncate some bits if not length = integer * k.">encode</a>(<span class="keyword">const</span> bvec &uncoded_bits, bvec &coded_bits); |
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| 85 | <a name="l00056"></a>00056 <span class="keyword">virtual</span> bvec <a class="code" href="classitpp_1_1Hamming__Code.html#0ba41d4af1fffdb67dfd027c7f0fe667" title="Hamming encoder. Will truncate some bits if not length = integer * k.">encode</a>(<span class="keyword">const</span> bvec &uncoded_bits); |
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| 86 | <a name="l00057"></a>00057 |
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| 87 | <a name="l00059"></a>00059 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Hamming__Code.html#cf97e226ec6c64105be98167afe01ee1" title="Hamming decoder. Will truncate some bits if not length = integer * n.">decode</a>(<span class="keyword">const</span> bvec &coded_bits, bvec &decoded_bits); |
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| 88 | <a name="l00061"></a>00061 <span class="keyword">virtual</span> bvec <a class="code" href="classitpp_1_1Hamming__Code.html#cf97e226ec6c64105be98167afe01ee1" title="Hamming decoder. Will truncate some bits if not length = integer * n.">decode</a>(<span class="keyword">const</span> bvec &coded_bits); |
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| 89 | <a name="l00062"></a>00062 |
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| 90 | <a name="l00063"></a>00063 <span class="comment">// Soft-decision decoding is not implemented</span> |
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| 91 | <a name="l00064"></a>00064 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Hamming__Code.html#cf97e226ec6c64105be98167afe01ee1" title="Hamming decoder. Will truncate some bits if not length = integer * n.">decode</a>(<span class="keyword">const</span> vec &received_signal, bvec &output); |
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| 92 | <a name="l00065"></a>00065 <span class="keyword">virtual</span> bvec <a class="code" href="classitpp_1_1Hamming__Code.html#cf97e226ec6c64105be98167afe01ee1" title="Hamming decoder. Will truncate some bits if not length = integer * n.">decode</a>(<span class="keyword">const</span> vec &received_signal); |
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| 93 | <a name="l00066"></a>00066 |
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| 94 | <a name="l00068"></a><a class="code" href="classitpp_1_1Hamming__Code.html#897c2c475b2aaa9bfe0d20f346274498">00068</a> <span class="keyword">virtual</span> <span class="keywordtype">double</span> <a class="code" href="classitpp_1_1Hamming__Code.html#897c2c475b2aaa9bfe0d20f346274498" title="Get the code rate.">get_rate</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <span class="keyword">static_cast<</span><span class="keywordtype">double</span><span class="keyword">></span>(k) / n; }; |
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| 95 | <a name="l00069"></a>00069 |
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| 96 | <a name="l00071"></a><a class="code" href="classitpp_1_1Hamming__Code.html#d3496b35f31f318a57d24bb3c8acfe01">00071</a> <span class="keywordtype">int</span> <a class="code" href="classitpp_1_1Hamming__Code.html#d3496b35f31f318a57d24bb3c8acfe01" title="Gets the code length n.">get_n</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> n; }; |
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| 97 | <a name="l00073"></a><a class="code" href="classitpp_1_1Hamming__Code.html#cc5e724c3ce0d4a0051c3983771e51bb">00073</a> <span class="keywordtype">int</span> <a class="code" href="classitpp_1_1Hamming__Code.html#cc5e724c3ce0d4a0051c3983771e51bb" title="Gets the number of information bits per code word, k.">get_k</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> k; }; |
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| 98 | <a name="l00075"></a><a class="code" href="classitpp_1_1Hamming__Code.html#09bf10714000b002320d6aedf9b59664">00075</a> <a class="code" href="mat_8h.html#f90acd1af41bf2d1d8a4bb23662fff69" title="bin matrix">bmat</a> <a class="code" href="classitpp_1_1Hamming__Code.html#09bf10714000b002320d6aedf9b59664" title="Gets the parity check matrix for the code.">get_H</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> H; }; |
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| 99 | <a name="l00077"></a><a class="code" href="classitpp_1_1Hamming__Code.html#bc9fd25a88ffd26af3a6ac98a5e0a550">00077</a> <a class="code" href="mat_8h.html#f90acd1af41bf2d1d8a4bb23662fff69" title="bin matrix">bmat</a> <a class="code" href="classitpp_1_1Hamming__Code.html#bc9fd25a88ffd26af3a6ac98a5e0a550" title="Gets the generator matrix for the code.">get_G</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> G; }; |
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| 100 | <a name="l00078"></a>00078 <span class="keyword">private</span>: |
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| 101 | <a name="l00079"></a>00079 <span class="keywordtype">int</span> n, k; |
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| 102 | <a name="l00080"></a>00080 <a class="code" href="mat_8h.html#f90acd1af41bf2d1d8a4bb23662fff69" title="bin matrix">bmat</a> H, G; |
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| 103 | <a name="l00081"></a>00081 <span class="keywordtype">void</span> generate_H(<span class="keywordtype">void</span>); |
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| 104 | <a name="l00082"></a>00082 <span class="keywordtype">void</span> generate_G(<span class="keywordtype">void</span>); |
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| 105 | <a name="l00083"></a>00083 }; |
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| 106 | <a name="l00084"></a>00084 |
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| 107 | <a name="l00085"></a>00085 } <span class="comment">// namespace itpp</span> |
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| 108 | <a name="l00086"></a>00086 |
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| 109 | <a name="l00087"></a>00087 <span class="preprocessor">#endif // #ifndef HAMMING_H</span> |
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| 110 | </pre></div></div> |
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| 111 | <hr size="1"><address style="text-align: right;"><small>Generated on Tue Jun 2 10:02:11 2009 for mixpp by |
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