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Make unit tests database connection parameters configurable
author Daniele Nicolodi <nicolodi@science.unitn.it>
date Wed, 07 Dec 2011 17:24:37 +0100
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1 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
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2 "http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd">
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4 <html lang="en">
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5 <head>
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6 <meta name="generator" content=
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7 "HTML Tidy for Mac OS X (vers 1st December 2004), see www.w3.org">
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11 <title>How to filter data (LTPDA Toolbox)</title>
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12 <link rel="stylesheet" href="docstyle.css" type="text/css">
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13 <meta name="generator" content="DocBook XSL Stylesheets V1.52.2">
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14 <meta name="description" content=
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15 "Presents an overview of the features, system requirements, and starting the toolbox.">
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16 </head>
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18 <body>
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19 <a name="top_of_page" id="top_of_page"></a>
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21 <p style="font-size:1px;">&nbsp;</p>
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22
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23 <table class="nav" summary="Navigation aid" border="0" width=
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24 "100%" cellpadding="0" cellspacing="0">
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25 <tr>
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26 <td valign="baseline"><b>LTPDA Toolbox</b></td><td><a href="../helptoc.html">contents</a></td>
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27
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28 <td valign="baseline" align="right"><a href=
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29 "ltpda_training_topic_4_3.html"><img src="b_prev.gif" border="0" align=
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30 "bottom" alt="Modelling a system"></a>&nbsp;&nbsp;&nbsp;<a href=
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31 "ltpda_training_topic_4_4_1.html"><img src="b_next.gif" border="0" align=
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32 "bottom" alt="By discretizing transfer function models"></a></td>
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33 </tr>
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34 </table>
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35
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36 <h1 class="title"><a name="f3-12899" id="f3-12899"></a>How to filter data</h1>
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37 <hr>
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38
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39 <p>
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40 <h2>How to filter data</h2>
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41
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42 In the previous sections we've been dealing with continuous (in s domain)
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43 systems. Now we want to apply this to data so we will need first to discretize
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44 to obtain a digital filter to then apply it to the data. Another typical
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45 application is not to derive the filter from a model but design it from the
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46 properties we want it to have (cut-off frequency, order, lowpass...).
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47 Both topics will be covered here with two examples:
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48
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49 <nl>
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50 <li><b>Obtain a digital filter from a model:</b> we continue with the previous
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51 closed loop example to translate the obtained models into filters.</li>
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52 <li><b>Define filter properties:</b> in this section we design a bandpass filter that will
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53 allow us to estimate the noise spectrum of interferometer data in the desired
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54 bandwidth.</li>
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55 </nl>
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56
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57 </p>
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58
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59 <br>
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60 <br>
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61 <table class="nav" summary="Navigation aid" border="0" width=
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62 "100%" cellpadding="0" cellspacing="0">
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63 <tr valign="top">
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64 <td align="left" width="20"><a href="ltpda_training_topic_4_3.html"><img src=
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65 "b_prev.gif" border="0" align="bottom" alt=
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66 "Modelling a system"></a>&nbsp;</td>
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67
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68 <td align="left">Modelling a system</td>
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69
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70 <td>&nbsp;</td>
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71
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72 <td align="right">By discretizing transfer function models</td>
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74 <td align="right" width="20"><a href=
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75 "ltpda_training_topic_4_4_1.html"><img src="b_next.gif" border="0" align=
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76 "bottom" alt="By discretizing transfer function models"></a></td>
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77 </tr>
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78 </table><br>
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79
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80 <p class="copy">&copy;LTP Team</p>
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81 </body>
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82 </html>