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<div id="projectname">libsdr
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 <span id="projectnumber">0.1.0</span>
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<div id="projectbrief">A simple SDR library</div>
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<li class="navelem"><a class="el" href="dir_68267d1309a1af8e8297ef4c3efbcdba.html">src</a></li> </ul>
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<div class="title">fftplan.hh</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="preprocessor">#ifndef __SDR_FFTPLAN_HH__</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="preprocessor">#define __SDR_FFTPLAN_HH__</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> </div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="preprocessor">#include "buffer.hh"</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="preprocessor">#include "node.hh"</span></div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="preprocessor">#include "config.hh"</span></div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> </div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="keyword">namespace </span><a class="code" href="namespacesdr.html">sdr</a> {</div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> </div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">// Forward declaration of FFTPlan</span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_f_t_plan.html"> 11</a></span> <span class="keyword">template</span> <<span class="keyword">class</span> Scalar> <span class="keyword">class </span><a class="code" href="classsdr_1_1_f_f_t_plan.html">FFTPlan</a> { };</div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> </div>
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<div class="line"><a name="l00014"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_f_t.html"> 14</a></span> <span class="keyword">class </span><a class="code" href="classsdr_1_1_f_f_t.html">FFT</a> {</div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00017"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_f_t.html#a02a2b7ef1f2494d542b133a4995e5344"> 17</a></span>  <span class="keyword">typedef</span> <span class="keyword">enum</span> {</div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>  FORWARD, BACKWARD</div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  } <a class="code" href="classsdr_1_1_f_f_t.html#a02a2b7ef1f2494d542b133a4995e5344">Direction</a>;</div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  <span class="keyword">template</span> <<span class="keyword">class</span> Scalar></div>
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<div class="line"><a name="l00023"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_f_t.html#a8aaadbbb8ce1c61fd90c5b9842753d1c"> 23</a></span>  <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="classsdr_1_1_f_f_t.html#a8aaadbbb8ce1c61fd90c5b9842753d1c">exec</a>(<span class="keyword">const</span> <a class="code" href="classsdr_1_1_buffer.html">Buffer</a>< std::complex<Scalar> > &in,</div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  <span class="keyword">const</span> <a class="code" href="classsdr_1_1_buffer.html">Buffer</a>< std::complex<Scalar> > &out, <a class="code" href="classsdr_1_1_f_f_t.html#a02a2b7ef1f2494d542b133a4995e5344">FFT::Direction</a> dir)</div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  {</div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  <a class="code" href="classsdr_1_1_f_f_t_plan.html">FFTPlan<Scalar></a> plan(in, out, dir); plan();</div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  }</div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  <span class="keyword">template</span> <<span class="keyword">class</span> Scalar></div>
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<div class="line"><a name="l00031"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_f_t.html#a9eede624e80fd59823522653156c0dc4"> 31</a></span>  <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="classsdr_1_1_f_f_t.html#a9eede624e80fd59823522653156c0dc4">exec</a>(<span class="keyword">const</span> <a class="code" href="classsdr_1_1_buffer.html">Buffer</a>< std::complex<Scalar> > &inplace, <a class="code" href="classsdr_1_1_f_f_t.html#a02a2b7ef1f2494d542b133a4995e5344">FFT::Direction</a> dir)</div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  {</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <a class="code" href="classsdr_1_1_f_f_t_plan.html">FFTPlan<Scalar></a> plan(inplace, dir); plan();</div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  }</div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> };</div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> </div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> }</div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> </div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="preprocessor">#ifdef SDR_WITH_FFTW</span></div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="preprocessor">#include "fftplan_fftw3.hh"</span></div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="preprocessor">#endif</span></div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> </div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> </div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="preprocessor">#endif // __SDR_FFTPLAN_HH__</span></div>
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<div class="ttc" id="classsdr_1_1_f_f_t_html_a02a2b7ef1f2494d542b133a4995e5344"><div class="ttname"><a href="classsdr_1_1_f_f_t.html#a02a2b7ef1f2494d542b133a4995e5344">sdr::FFT::Direction</a></div><div class="ttdeci">Direction</div><div class="ttdoc">Direction type. </div><div class="ttdef"><b>Definition:</b> fftplan.hh:17</div></div>
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<div class="ttc" id="namespacesdr_html"><div class="ttname"><a href="namespacesdr.html">sdr</a></div><div class="ttdef"><b>Definition:</b> autocast.hh:8</div></div>
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<div class="ttc" id="classsdr_1_1_f_f_t_plan_html"><div class="ttname"><a href="classsdr_1_1_f_f_t_plan.html">sdr::FFTPlan</a></div><div class="ttdoc">Trivial FFT implementation for buffer sizes of N=2**K. </div><div class="ttdef"><b>Definition:</b> fftplan.hh:11</div></div>
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<div class="ttc" id="classsdr_1_1_f_f_t_html_a8aaadbbb8ce1c61fd90c5b9842753d1c"><div class="ttname"><a href="classsdr_1_1_f_f_t.html#a8aaadbbb8ce1c61fd90c5b9842753d1c">sdr::FFT::exec</a></div><div class="ttdeci">static void exec(const Buffer< std::complex< Scalar > > &in, const Buffer< std::complex< Scalar > > &out, FFT::Direction dir)</div><div class="ttdoc">Performs a FFT transform. </div><div class="ttdef"><b>Definition:</b> fftplan.hh:23</div></div>
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<div class="ttc" id="classsdr_1_1_f_f_t_html_a9eede624e80fd59823522653156c0dc4"><div class="ttname"><a href="classsdr_1_1_f_f_t.html#a9eede624e80fd59823522653156c0dc4">sdr::FFT::exec</a></div><div class="ttdeci">static void exec(const Buffer< std::complex< Scalar > > &inplace, FFT::Direction dir)</div><div class="ttdoc">Performs an in-place FFT transform. </div><div class="ttdef"><b>Definition:</b> fftplan.hh:31</div></div>
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<div class="ttc" id="classsdr_1_1_f_f_t_html"><div class="ttname"><a href="classsdr_1_1_f_f_t.html">sdr::FFT</a></div><div class="ttdoc">FFT module class, provides static methods to perfrom a FFT directly. </div><div class="ttdef"><b>Definition:</b> fftplan.hh:14</div></div>
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<div class="ttc" id="classsdr_1_1_buffer_html"><div class="ttname"><a href="classsdr_1_1_buffer.html">sdr::Buffer</a></div><div class="ttdoc">A typed buffer. </div><div class="ttdef"><b>Definition:</b> buffer.hh:111</div></div>
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