File:Butterworth filter bode plot.svg
Summary
The <a href="https://en.wikipedia.org/wiki/Bode_plot" class="extiw" title="en:Bode plot">Bode plot</a> of a <a href="https://en.wikipedia.org/wiki/Butterworth_filter" class="extiw" title="en:Butterworth filter">Butterworth filter</a> with logarithmic axes and various labels. <a href="https://en.wikipedia.org/wiki/Cutoff_frequency" class="extiw" title="en:Cutoff frequency">Cutoff frequency</a> is normalized to 1 rad/s. Gain is normalized to 0 <a href="https://en.wikipedia.org/wiki/decibel" class="extiw" title="en:decibel">dB</a> in the <a href="https://en.wikipedia.org/wiki/passband" class="extiw" title="en:passband">passband</a>. Phase is in degrees because that's typical.
The code is kind of kludgy, but makes a good output. Generated in <a href="https://en.wikipedia.org/wiki/gnuplot" class="extiw" title="en:gnuplot">gnuplot</a> with the script below (save as butterworth_bode_plot.plt and then open in gnuplot). Then it was postprocessed with <a href="https://en.wikipedia.org/wiki/Inkscape" class="extiw" title="en:Inkscape">Inkscape</a>. See <a href="https://en.wikipedia.org/wiki/Wikipedia:How_to_create_graphs_for_Wikipedia_articles" class="extiw" title="en:Wikipedia:How to create graphs for Wikipedia articles">Wikipedia graph-making tips</a>.
Many orders on one plot: <a href="//commons.wikimedia.org/wiki/File:Butterworth_orders.png" title="File:Butterworth orders.png">Image:Butterworth orders.png</a>
Licensing
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 06:55, 30 October 2021 | | 1,250 × 875 (30 KB) | Thales (talk | contribs) | |
| 15:28, 9 January 2017 | No thumbnail | (0 bytes) | 127.0.0.1 (talk) | The <a href="https://en.wikipedia.org/wiki/Bode_plot" class="extiw" title="en:Bode plot">Bode plot</a> of a <a href="https://en.wikipedia.org/wiki/Butterworth_filter" class="extiw" title="en:Butterworth filter">Butterworth filter</a> with logarithmic axes and various labels. <a href="https://en.wikipedia.org/wiki/Cutoff_frequency" class="extiw" title="en:Cutoff frequency">Cutoff frequency</a> is normalized to 1 rad/s. Gain is normalized to 0 <a href="https://en.wikipedia.org/wiki/decibel" class="extiw" title="en:decibel">dB</a> in the <a href="https://en.wikipedia.org/wiki/passband" class="extiw" title="en:passband">passband</a>. Phase is in degrees because that's typical.<br><br>The code is kind of kludgy, but makes a good output. Generated in <a href="https://en.wikipedia.org/wiki/gnuplot" class="extiw" title="en:gnuplot">gnuplot</a> with the script below (save as butterworth_bode_plot.plt and then open in gnuplot). Then it was postprocessed with <a href="https://en.wikipedia.org/wiki/Inkscape" class="extiw" title="en:Inkscape">Inkscape</a>. See <a href="https://en.wikipedia.org/wiki/Wikipedia:How_to_create_graphs_for_Wikipedia_articles" class="extiw" title="en:Wikipedia:How to create graphs for Wikipedia articles">Wikipedia graph-making tips</a>.<br><br>Many orders on one plot: <a href="//commons.wikimedia.org/wiki/File:Butterworth_orders.png" title="File:Butterworth orders.png">Image:Butterworth orders.png</a> |
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