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+++ b/m-toolbox/html_help/help/ug/ltpda_training_topic_3_content.html	Wed Nov 23 19:22:13 2011 +0100
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+<p>
+  Training session 3 is a tutorial of how to estimate spectral
+  properties of the signals, employing the instruments provided by the
+  LTPDA Toolbox. As described in the devoted User Manual <a
+  href="sigproc_spec.html"> section</a>, spectral estimation is a
+  branch of the signal processing, performed on data and based on
+  frequency-domain techniques.
+ </p>
+ <p>The focus of the tools is on
+  time-series objects, whose spectral content needs to be estimated.
+  </p>
+<p>
+We will learn here how to use the tools to evaluate univariate and
+  multivariate analyses. </p>
+ <p>  The topic is divided as follows:  
+  
+  <ul>
+    <li><a href="ltpda_training_topic_3_2.html">Exercises on Power
+    Spectral Density estimation</a> </li>
+    <li><a href="ltpda_training_topic_3_5.html">Exercises on Transfer Functions estimation</a> </li>
+    <li><a href="ltpda_training_topic_3_6.html">IFO/Temperature Example -  Spectral Analysis</a> </li>
+  </ul>
+
+ </p>
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