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67<h1>filter_design.h File Reference</h1>Filter design functions. 
68<a href="#_details">More...</a>
69<p>
70<code>#include &lt;<a class="el" href="vec_8h-source.html">itpp/base/vec.h</a>&gt;</code><br>
71
72<p>
73<a href="filter__design_8h-source.html">Go to the source code of this file.</a><table border="0" cellpadding="0" cellspacing="0">
74<tr><td></td></tr>
75<tr><td colspan="2"><br><h2>Functions</h2></td></tr>
76<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__filters.html#g2033b02289e9750bdad5048b69450b9d">itpp::filter_design_autocorrelation</a> (const int N, const <a class="el" href="classitpp_1_1Vec.html#02e1bb55f60f3c2eb7a020eb1c2cfcf4">vec</a> &amp;f, const <a class="el" href="classitpp_1_1Vec.html#02e1bb55f60f3c2eb7a020eb1c2cfcf4">vec</a> &amp;m, <a class="el" href="classitpp_1_1Vec.html#02e1bb55f60f3c2eb7a020eb1c2cfcf4">vec</a> &amp;R)</td></tr>
77
78<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Calculate autocorrelation from the specified frequency-response (suitable for filter design).  <a href="group__filters.html#g2033b02289e9750bdad5048b69450b9d"></a><br></td></tr>
79<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__filters.html#g025dd774b9aa089dae5f6d2eb7ce370d">itpp::modified_yule_walker</a> (const int m, const int n, const int N, const <a class="el" href="classitpp_1_1Vec.html#02e1bb55f60f3c2eb7a020eb1c2cfcf4">vec</a> &amp;R, <a class="el" href="classitpp_1_1Vec.html#02e1bb55f60f3c2eb7a020eb1c2cfcf4">vec</a> &amp;a)</td></tr>
80
81<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Estimation of AR-part in an ARMA model given the autocorrelation.  <a href="group__filters.html#g025dd774b9aa089dae5f6d2eb7ce370d"></a><br></td></tr>
82<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__filters.html#gf71a08867d54230c0752c51c8935f475">itpp::arma_estimator</a> (const int m, const int n, const <a class="el" href="classitpp_1_1Vec.html#02e1bb55f60f3c2eb7a020eb1c2cfcf4">vec</a> &amp;R, <a class="el" href="classitpp_1_1Vec.html#02e1bb55f60f3c2eb7a020eb1c2cfcf4">vec</a> &amp;b, <a class="el" href="classitpp_1_1Vec.html#02e1bb55f60f3c2eb7a020eb1c2cfcf4">vec</a> &amp;a)</td></tr>
83
84<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Estimation of ARMA model given the autocorrelation.  <a href="group__filters.html#gf71a08867d54230c0752c51c8935f475"></a><br></td></tr>
85<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__filters.html#gcf8dfa35f2ad0d6b0991ca3c8da38066">itpp::yulewalk</a> (const int N, const <a class="el" href="classitpp_1_1Vec.html#02e1bb55f60f3c2eb7a020eb1c2cfcf4">vec</a> &amp;f, const <a class="el" href="classitpp_1_1Vec.html#02e1bb55f60f3c2eb7a020eb1c2cfcf4">vec</a> &amp;m, <a class="el" href="classitpp_1_1Vec.html#02e1bb55f60f3c2eb7a020eb1c2cfcf4">vec</a> &amp;b, <a class="el" href="classitpp_1_1Vec.html#02e1bb55f60f3c2eb7a020eb1c2cfcf4">vec</a> &amp;a)</td></tr>
86
87<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">ARMA filter design using a least-squares fit to the specified frequency-response.  <a href="group__filters.html#gcf8dfa35f2ad0d6b0991ca3c8da38066"></a><br></td></tr>
88<tr><td colspan="2"><div class="groupHeader"></div></td></tr>
89<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__filters.html#g2ecc4e5384d7719b35ec11efef91b5a4">itpp::polystab</a> (const <a class="el" href="classitpp_1_1Vec.html#02e1bb55f60f3c2eb7a020eb1c2cfcf4">vec</a> &amp;a, <a class="el" href="classitpp_1_1Vec.html#02e1bb55f60f3c2eb7a020eb1c2cfcf4">vec</a> &amp;out)</td></tr>
90
91<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Polynomial Stabilization.  <a href="group__filters.html#g2ecc4e5384d7719b35ec11efef91b5a4"></a><br></td></tr>
92<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gd1159c2b1b821a2f498934a5aaede701"></a><!-- doxytag: member="filter_design.h::polystab" ref="gd1159c2b1b821a2f498934a5aaede701" args="(const vec &amp;a)" -->
93<a class="el" href="classitpp_1_1Vec.html#02e1bb55f60f3c2eb7a020eb1c2cfcf4">vec</a>&nbsp;</td><td class="memItemRight" valign="bottom"><b>itpp::polystab</b> (const <a class="el" href="classitpp_1_1Vec.html#02e1bb55f60f3c2eb7a020eb1c2cfcf4">vec</a> &amp;a)</td></tr>
94
95<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gb9866d2bb02ece54887efdce3e344614"></a><!-- doxytag: member="filter_design.h::polystab" ref="gb9866d2bb02ece54887efdce3e344614" args="(const cvec &amp;a, cvec &amp;out)" -->
96void&nbsp;</td><td class="memItemRight" valign="bottom"><b>itpp::polystab</b> (const <a class="el" href="classitpp_1_1Vec.html#e83c1408740e41a7e29c383b71d4d544">cvec</a> &amp;a, <a class="el" href="classitpp_1_1Vec.html#e83c1408740e41a7e29c383b71d4d544">cvec</a> &amp;out)</td></tr>
97
98<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gc8463b5b6495037682e54dcda09702b4"></a><!-- doxytag: member="filter_design.h::polystab" ref="gc8463b5b6495037682e54dcda09702b4" args="(const cvec &amp;a)" -->
99<a class="el" href="classitpp_1_1Vec.html#e83c1408740e41a7e29c383b71d4d544">cvec</a>&nbsp;</td><td class="memItemRight" valign="bottom"><b>itpp::polystab</b> (const <a class="el" href="classitpp_1_1Vec.html#e83c1408740e41a7e29c383b71d4d544">cvec</a> &amp;a)</td></tr>
100
101<tr><td colspan="2"><div class="groupHeader"></div></td></tr>
102<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__filters.html#g6378a48f05117a9831046b82eade9e7b">itpp::freqz</a> (const <a class="el" href="classitpp_1_1Vec.html#e83c1408740e41a7e29c383b71d4d544">cvec</a> &amp;b, const <a class="el" href="classitpp_1_1Vec.html#e83c1408740e41a7e29c383b71d4d544">cvec</a> &amp;a, const int N, <a class="el" href="classitpp_1_1Vec.html#e83c1408740e41a7e29c383b71d4d544">cvec</a> &amp;h, <a class="el" href="classitpp_1_1Vec.html#02e1bb55f60f3c2eb7a020eb1c2cfcf4">vec</a> &amp;w)</td></tr>
103
104<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Frequency response of filter.  <a href="group__filters.html#g6378a48f05117a9831046b82eade9e7b"></a><br></td></tr>
105<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gf775dab3b06daba47d01dc0701be1974"></a><!-- doxytag: member="filter_design.h::freqz" ref="gf775dab3b06daba47d01dc0701be1974" args="(const cvec &amp;b, const cvec &amp;a, const int N)" -->
106<a class="el" href="classitpp_1_1Vec.html#e83c1408740e41a7e29c383b71d4d544">cvec</a>&nbsp;</td><td class="memItemRight" valign="bottom"><b>itpp::freqz</b> (const <a class="el" href="classitpp_1_1Vec.html#e83c1408740e41a7e29c383b71d4d544">cvec</a> &amp;b, const <a class="el" href="classitpp_1_1Vec.html#e83c1408740e41a7e29c383b71d4d544">cvec</a> &amp;a, const int N)</td></tr>
107
108<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="g6464c06631fdd68d059886e16a8893ff"></a><!-- doxytag: member="filter_design.h::freqz" ref="g6464c06631fdd68d059886e16a8893ff" args="(const cvec &amp;b, const cvec &amp;a, const vec &amp;w)" -->
109<a class="el" href="classitpp_1_1Vec.html#e83c1408740e41a7e29c383b71d4d544">cvec</a>&nbsp;</td><td class="memItemRight" valign="bottom"><b>itpp::freqz</b> (const <a class="el" href="classitpp_1_1Vec.html#e83c1408740e41a7e29c383b71d4d544">cvec</a> &amp;b, const <a class="el" href="classitpp_1_1Vec.html#e83c1408740e41a7e29c383b71d4d544">cvec</a> &amp;a, const <a class="el" href="classitpp_1_1Vec.html#02e1bb55f60f3c2eb7a020eb1c2cfcf4">vec</a> &amp;w)</td></tr>
110
111<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gac89d9a9142dffbc94faf9960278eedb"></a><!-- doxytag: member="filter_design.h::freqz" ref="gac89d9a9142dffbc94faf9960278eedb" args="(const vec &amp;b, const vec &amp;a, const int N, cvec &amp;h, vec &amp;w)" -->
112void&nbsp;</td><td class="memItemRight" valign="bottom"><b>itpp::freqz</b> (const <a class="el" href="classitpp_1_1Vec.html#02e1bb55f60f3c2eb7a020eb1c2cfcf4">vec</a> &amp;b, const <a class="el" href="classitpp_1_1Vec.html#02e1bb55f60f3c2eb7a020eb1c2cfcf4">vec</a> &amp;a, const int N, <a class="el" href="classitpp_1_1Vec.html#e83c1408740e41a7e29c383b71d4d544">cvec</a> &amp;h, <a class="el" href="classitpp_1_1Vec.html#02e1bb55f60f3c2eb7a020eb1c2cfcf4">vec</a> &amp;w)</td></tr>
113
114<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="ge67792d45dac13bcb565cd6858ece63e"></a><!-- doxytag: member="filter_design.h::freqz" ref="ge67792d45dac13bcb565cd6858ece63e" args="(const vec &amp;b, const vec &amp;a, const int N)" -->
115<a class="el" href="classitpp_1_1Vec.html#e83c1408740e41a7e29c383b71d4d544">cvec</a>&nbsp;</td><td class="memItemRight" valign="bottom"><b>itpp::freqz</b> (const <a class="el" href="classitpp_1_1Vec.html#02e1bb55f60f3c2eb7a020eb1c2cfcf4">vec</a> &amp;b, const <a class="el" href="classitpp_1_1Vec.html#02e1bb55f60f3c2eb7a020eb1c2cfcf4">vec</a> &amp;a, const int N)</td></tr>
116
117<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="gc647a4aeb62e5bf6322a47bce1194145"></a><!-- doxytag: member="filter_design.h::freqz" ref="gc647a4aeb62e5bf6322a47bce1194145" args="(const vec &amp;b, const vec &amp;a, const vec &amp;w)" -->
118<a class="el" href="classitpp_1_1Vec.html#e83c1408740e41a7e29c383b71d4d544">cvec</a>&nbsp;</td><td class="memItemRight" valign="bottom"><b>itpp::freqz</b> (const <a class="el" href="classitpp_1_1Vec.html#02e1bb55f60f3c2eb7a020eb1c2cfcf4">vec</a> &amp;b, const <a class="el" href="classitpp_1_1Vec.html#02e1bb55f60f3c2eb7a020eb1c2cfcf4">vec</a> &amp;a, const <a class="el" href="classitpp_1_1Vec.html#02e1bb55f60f3c2eb7a020eb1c2cfcf4">vec</a> &amp;w)</td></tr>
119
120</table>
121<hr><a name="_details"></a><h2>Detailed Description</h2>
122Filter design functions.
123<p>
124<dl class="author" compact><dt><b>Author:</b></dt><dd>Tony Ottosson</dd></dl>
125-------------------------------------------------------------------------<p>
126Copyright (C) 1995-2008 (see AUTHORS file for a list of contributors)<p>
127This file is part of IT++ - a C++ library of mathematical, signal processing, speech processing, and communications classes and functions.<p>
128IT++ is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.<p>
129IT++ is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.<p>
130You should have received a copy of the GNU General Public License along with IT++. If not, see &lt;<a href="http://www.gnu.org/licenses/">http://www.gnu.org/licenses/</a>&gt;.<p>
131------------------------------------------------------------------------- </div>
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