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- <a name="bode"></a>
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- <h1 class="chapter"> 43. bode </h1>
- <table class="menu" border="0" cellspacing="0">
- <tr><td align="left" valign="top"><a href="#SEC175">43.1 Funções e Variáveis Definidas para bode</a></td><td> </td><td align="left" valign="top">
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- <h2 class="section"> 43.1 Funções e Variáveis Definidas para bode </h2>
- <dl>
- <dt><u>Função:</u> <b>bode_gain</b><i> (<var>H</var>, <var>range</var>, ...<var>plot_opts</var>...)</i>
- <a name="IDX1403"></a>
- </dt>
- <dd><p>Função para desenhar gráficos de ganho para Bode.
- </p>
- <p>Exemplos (1 a 7 provenientes de
- </p><pre class="example">http://www.swarthmore.edu/NatSci/echeeve1/Ref/Bode/BodeHow.html,
- </pre><p>8 proveniente de Ron Crummett):
- </p><pre class="example">(%i1) load("bode")$
- (%i2) H1 (s) := 100 * (1 + s) / ((s + 10) * (s + 100))$
- (%i3) bode_gain (H1 (s), [w, 1/1000, 1000])$
- (%i4) H2 (s) := 1 / (1 + s/omega0)$
- (%i5) bode_gain (H2 (s), [w, 1/1000, 1000]), omega0 = 10$
- (%i6) H3 (s) := 1 / (1 + s/omega0)^2$
- (%i7) bode_gain (H3 (s), [w, 1/1000, 1000]), omega0 = 10$
- (%i8) H4 (s) := 1 + s/omega0$
- (%i9) bode_gain (H4 (s), [w, 1/1000, 1000]), omega0 = 10$
- (%i10) H5 (s) := 1/s$
- (%i11) bode_gain (H5 (s), [w, 1/1000, 1000])$
- (%i12) H6 (s) := 1/((s/omega0)^2 + 2 * zeta * (s/omega0) + 1)$
- (%i13) bode_gain (H6 (s), [w, 1/1000, 1000]),
- omega0 = 10, zeta = 1/10$
- (%i14) H7 (s) := (s/omega0)^2 + 2 * zeta * (s/omega0) + 1$
- (%i15) bode_gain (H7 (s), [w, 1/1000, 1000]),
- omega0 = 10, zeta = 1/10$
- (%i16) H8 (s) := 0.5 / (0.0001 * s^3 + 0.002 * s^2 + 0.01 * s)$
- (%i17) bode_gain (H8 (s), [w, 1/1000, 1000])$
- </pre>
- <p>Para usar essa função escreva primeiramente <code>load("bode")</code>. Veja também <code>bode_phase</code>
- </p></dd></dl>
- <dl>
- <dt><u>Função:</u> <b>bode_phase</b><i> (<var>H</var>, <var>range</var>, ...<var>plot_opts</var>...)</i>
- <a name="IDX1404"></a>
- </dt>
- <dd><p>Função para desenhar gráficos de fase para Bode
- </p>
- <p>Exemplos (1 a 7 provenientes de
- </p><pre class="example">http://www.swarthmore.edu/NatSci/echeeve1/Ref/Bode/BodeHow.html,
- </pre><p>8 proveniente de Ron Crummett):
- </p><pre class="example">(%i1) load("bode")$
- (%i2) H1 (s) := 100 * (1 + s) / ((s + 10) * (s + 100))$
- (%i3) bode_phase (H1 (s), [w, 1/1000, 1000])$
- (%i4) H2 (s) := 1 / (1 + s/omega0)$
- (%i5) bode_phase (H2 (s), [w, 1/1000, 1000]), omega0 = 10$
- (%i6) H3 (s) := 1 / (1 + s/omega0)^2$
- (%i7) bode_phase (H3 (s), [w, 1/1000, 1000]), omega0 = 10$
- (%i8) H4 (s) := 1 + s/omega0$
- (%i9) bode_phase (H4 (s), [w, 1/1000, 1000]), omega0 = 10$
- (%i10) H5 (s) := 1/s$
- (%i11) bode_phase (H5 (s), [w, 1/1000, 1000])$
- (%i12) H6 (s) := 1/((s/omega0)^2 + 2 * zeta * (s/omega0) + 1)$
- (%i13) bode_phase (H6 (s), [w, 1/1000, 1000]),
- omega0 = 10, zeta = 1/10$
- (%i14) H7 (s) := (s/omega0)^2 + 2 * zeta * (s/omega0) + 1$
- (%i15) bode_phase (H7 (s), [w, 1/1000, 1000]),
- omega0 = 10, zeta = 1/10$
- (%i16) H8 (s) := 0.5 / (0.0001 * s^3 + 0.002 * s^2 + 0.01 * s)$
- (%i17) bode_phase (H8 (s), [w, 1/1000, 1000])$
- (%i18) block ([bode_phase_unwrap : false],
- bode_phase (H8 (s), [w, 1/1000, 1000]));
- (%i19) block ([bode_phase_unwrap : true],
- bode_phase (H8 (s), [w, 1/1000, 1000]));
- </pre>
- <p>Para usar essa função escreva primeiramente <code>load("bode")</code>. Veja também <code>bode_gain</code>
- </p></dd></dl>
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