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author Daniele Nicolodi <nicolodi@science.unitn.it>
date Wed, 23 Nov 2011 19:22:13 +0100
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2 <!-- BEGIN: Content file -->
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4 <a name="top_of_page"></a>
5 <p>This table summarizes what's new in Version 2.0:</p>
6 <table cellspacing="0" class="body" cellpadding="4" border="2" width="100%">
7 <colgroup>
8 <col width="25%">
9 <col width="25%">
10 <col width="25%">
11 <col width="25%">
12 </colgroup>
13 <thead>
14 <tr valign="top">
15 <th bgcolor="#B2B2B2" valign="top"><p>New Features and Changes</p></th>
16 <th bgcolor="#B2B2B2" valign="top"><p>Version Compatibility Considerations</p></th>
17 <th bgcolor="#B2B2B2" valign="top"><p>Fixed Bugs and Known Problems</p></th>
18 <th bgcolor="#B2B2B2" valign="top"><p>Related Documentation at Web Site</p></th>
19 </tr>
20 </thead>
21 <tbody>
22 <tr valign="top">
23 <td bgcolor="#F2F2F2"><p>Yes<br>Details below</p></td>
24 <td bgcolor="#F2F2F2"><p>No</p></td>
25 <td bgcolor="#F2F2F2"><p><a href="https://ed.fbk.eu/ltpda/mantis/login_page.php" target="_top">Bug Reports</a> at Web site</p></td>
26 <td bgcolor="#F2F2F2"><p>Printable Release Notes: <a href="http://www.lisa.aei-hannover.de/ltpda/downloads/version_2_0/files/change_log_v2.0.pdf" target="_top">PDF</a></p></td>
27 </tr>
28 </tbody>
29 </table>
30 <p></p>
31 <ul>
32 <li><p><a href="#introduction">Introduction</a></p></li>
33 <li><p><a href="#newFeatures">New toolbox features and changes</a></p></li>
34 </ul>
35
36 <!-- HEADLINE: Introduction -->
37
38 <h3 class="title" id="introduction">Introduction</h3>
39 <p>There has been a significant amount of work done since V1.9.3.</p>
40
41 <!-- HEADLINE: New toolbox features and changes-->
42
43 <h3 class="title" id="newFeatures">New toolbox features and changes</h3>
44 <p>The highlights are:</p>
45 <ul>
46 <li><p>A new Graphical Programming interface for the construction of
47 signal processing pipelines (LTPDAworkbench)</p></li>
48 <li><p>New data whitening methods are included, <b>ao/whiten1D</b> and
49 <b>ao/whiten2D</b>.</p></li>
50 <li>
51 <p>Most methods of the AO class should now support multiple outputs,
52 in addition to the vector output. For example, the following are supported:</p>
53 <ul>
54 <li><p><b>a = lpsd(b1,b2,b3)</b></p></li>
55 <li><p><b>[a1,a2,a3] = lpsd(b1,b2,b3)</b></p></li>
56 </ul>
57 </li>
58 <li>
59 <p>Model fitting tools:</p>
60 <ul>
61 <li><p><b>curvefit</b> for doing non-linear least-squares,
62 now including weights</p></li>
63 <li><p><b>lscov</b> for doing linear least-squares fitting</p></li>
64 <li><p><b>straightLineFit</b> is a wrapper of <b>lscov</b> for
65 fitting data with a straight-line</p></li>
66 </ul>
67 </li>
68 <li><p>Operators, +-.*./*/, all conform to more standard MATLAB type
69 behaviour. For example, adding a single AO to a vector of AOs results
70 in a vector of AOs where the single AO is added to each element of the vector.</p></li>
71 <li><p>Digital filtering with IIR filters now has two possible ways of
72 applying a bank of filters. By specifying the &lsquo;<b>bank</b>&rsquo;
73 parameter, the filters will be applied as a &lsquo;<b>serial</b>&rsquo;
74 bank or a &lsquo;<b>parallel</b>&rsquo; bank.</p></li>
75 <li><p>Two new noise-generators are included, <b>noisegen1D</b> and
76 <b>noisegen2D</b> (which can produce correlated data streams).</p></li>
77 <li><p>AOs can now be built from a set of built-in models. Users can also
78 write their own models and point LTPDA to a directory (or more than one)
79 containing those model files.</p></li>
80 <li><p>The user preferences of LTPDA are now controlled via a graphical
81 user interface. To adjust the user preferences, run <b>LTPDAprefs</b>.</p></li>
82 <li><p>Two new transfer function representations are present as user classes
83 of this version of the toolbox. The class <b>parfrac</b> allows the
84 user to build transfer function models that are a series of partial
85 fractions; the class <b>rational</b> allows the user to build a
86 transfer function as a rational polynomial in s. Some converters also
87 exist to go between these and the existing transfer function models,
88 <b>pzmodel</b> (pole/zero models), <b>miir</b> (IIR filters) and
89 <b>ssm</b> (state-space models).</p></li>
90 <li><p>A new method, <b>ao/heterodyne</b>, to heterodyne data at a given
91 frequency.</p></li>
92 <li><p>All transfer function representations and digital filters now can
93 be assigned input and output units. This means that units are now
94 propagated through fully through any analysis.</p></li>
95 <li><p>A new <b>rebuild</b> method to rebuild objects from their
96 self-contained history trees.</p></li>
97 <li>
98 <p>New graphical user interfaces</p>
99 <ul>
100 <li><p>modelViewer - a viewer for the built-in ao and ssm models</p></li>
101 <li><p>constructor - a helper for writing object constructors (rewritten)</p></li>
102 </ul>
103 </li>
104 <li><p>New convenient AO methods to apply gain and to add an offset to
105
106 data (<b>scale, offset</b>).</p></li>
107 <li><p>Transfer function estimators now return error terms in the
108 <b>procinfo</b> field of the result <b>ao</b>.</p></li>
109 <li><p>Units are not automatically simplified. Instead the user can now
110 do that on demand with the <b>simplifyYunits</b> method. There are
111 also methods to convert between Hz and s: <b>HzToS</b> and <b>sToHz</b>.</p></li>
112 <li><p>Digital IIR filters are now initialised to a state based on the
113 input data. This should reduce start-up transients.</p></li>
114 <li><p>Data in AOs can be converted from one type to another using the
115 new <b>ao/convert</b> method.</p></li>
116 <li><p>Pole/zero models (<b>pzmodel</b>) now support a delay parameter.</p></li>
117 </ul>
118
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