Mercurial > hg > ltpda
comparison m-toolbox/html_help/help/ug/gui_pzmodel_content.html @ 0:f0afece42f48
Import.
| author | Daniele Nicolodi <nicolodi@science.unitn.it> |
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| date | Wed, 23 Nov 2011 19:22:13 +0100 |
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| -1:000000000000 | 0:f0afece42f48 |
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| 1 <p> | |
| 2 The LTPDA toolbox contains a class (<tt>pzmodel</tt>) for creating and using pole/zero models. | |
| 3 The <it>pole/zero model helper GUI</it> allows the user to visualise the pole/zero model as it's | |
| 4 being designed. It also allows the user to quickly see how the corresponding IIR filter | |
| 5 (<tt>miir</tt> object) will look for different sample rates. | |
| 6 </p> | |
| 7 <p> | |
| 8 To start the pole/zero model helper: | |
| 9 <div class="fragment"> | |
| 10 <pre> | |
| 11 >> pzmodel_helper | |
| 12 </pre> | |
| 13 </div> | |
| 14 or click the appropriate button on the LTPDA Launch Bay. | |
| 15 </p> | |
| 16 <p> | |
| 17 Once the GUI is loaded, you will see the following figure: | |
| 18 </p> | |
| 19 <br> | |
| 20 <img src="images/pzmodel_helper.png" alt="pzmodel helper" border="3"> | |
| 21 <br> | |
| 22 <p> | |
| 23 You can add poles and zeros to the model by entering the frequency (and Q) in the edit boxes, then click | |
| 24 <tt>Add pole</tt> or <tt>Add zero</tt> as appropriate. The response is then updated in the response axes. | |
| 25 </p> | |
| 26 <br> | |
| 27 <img src="images/pzmodel_helper_eg1.png" alt="pzmodel helper" border="3"> | |
| 28 <br> | |
| 29 |