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author Daniele Nicolodi <nicolodi@science.unitn.it>
date Mon, 05 Dec 2011 16:20:06 +0100
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1
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2 <p>To create a spectral window object, you call the <tt>specwin</tt> class constructor. The following
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3 code fragment creates a 100-point Hanning window:
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4 </p>
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5 <div class="fragment"><pre>
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6 >> w = specwin(<span class="string">'Hanning'</span>, 100)
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7 -------- Hanning ------------
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8
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9 alpha: 0
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10 psll: 31.5
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11 rov: 50
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12 nenbw: 1.5
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13 w3db: 1.4382
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14 flatness: -1.4236
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15 ws: 50
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16 ws2: 37.5
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17 win: 100
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18
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19 -----------------------------
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20 </pre></div>
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21 <p><a href="specwin_description.html">List of available window functions</a></p>
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22 <p>
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23 In the special case of creating a Kaiser window, the additional input parameter, PSLL, must be
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24 supplied. For example, the following code creates a 100-point Kaiser window with -150dB peak
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25 side-lobe level:
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26 </p>
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27 <div class="fragment"><pre>
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28 >> w = specwin(<span class="string">'Kaiser'</span>, 100, 150)
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29 -------- Kaiser ------------
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30
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31 alpha: 6.18029
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32 psll: 150
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33 rov: 73.3738
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34 nenbw: 2.52989
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35 w3db: 2.38506
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36 flatness: -0.52279
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37 ws: 28.2558
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38 ws2: 20.1819
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39 win: 100
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40
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41 ----------------------------
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42 </pre></div>