fzlt.htm

bode画法和命令

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     lang=EN-US style='font-size:9.0pt;mso-bidi-font-size:12.0pt'>G</span></i><sub><span
     lang=EN-US style='font-size:9.0pt;mso-bidi-font-size:12.0pt'>4</span></sub><span
     lang=EN-US style='font-size:9.0pt;mso-bidi-font-size:12.0pt'><o:p></o:p></span></p>
     <p class=MsoNormal align=center style='text-align:center'><span
     lang=EN-US style='font-size:9.0pt;mso-bidi-font-size:12.0pt'>8<o:p></o:p></span></p>
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     <p class=MsoNormal align=center style='text-align:center'><span
     lang=EN-US style='font-size:9.0pt;mso-bidi-font-size:12.0pt'>7<o:p></o:p></span></p>
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style='mso-bidi-font-weight:normal'><span style='font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"'>解</span><span
lang=EN-US><span style='mso-spacerun:yes'>&nbsp; </span></span></b><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";mso-bidi-font-weight:bold'>（</span><span lang=EN-US
style='mso-bidi-font-weight:bold'>1</span><span style='font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-weight:bold'>）根据给定的系统框图绘制出信号流图，如图</span><span lang=EN-US
style='mso-bidi-font-weight:bold'>2</span><span style='font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-weight:bold'>所示，并对每条支路进行编号，支路的数目为</span><span lang=EN-US
style='mso-bidi-font-weight:bold'>9</span><span style='font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-weight:bold'>。</span><span lang=EN-US style='mso-bidi-font-weight:
bold'><o:p></o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='mso-bidi-font-weight:bold'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='mso-bidi-font-weight:bold'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span lang=EN-US style='mso-bidi-font-weight:bold'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal align=center style='text-align:center'><span lang=EN-US
style='mso-bidi-font-weight:bold'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal align=center style='text-align:center'><span lang=EN-US
style='font-size:9.0pt;mso-bidi-font-size:12.0pt;mso-bidi-font-weight:bold'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal align=center style='text-align:center'><span lang=EN-US
style='font-size:9.0pt;mso-bidi-font-size:12.0pt;mso-bidi-font-weight:bold'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal align=center style='text-align:center'><span lang=EN-US
style='font-size:9.0pt;mso-bidi-font-size:12.0pt;mso-bidi-font-weight:bold'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal align=center style='text-align:center'><span
style='font-size:9.0pt;mso-bidi-font-size:12.0pt;font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-weight:
bold'>图</span><span lang=EN-US style='font-size:9.0pt;mso-bidi-font-size:12.0pt;
mso-bidi-font-weight:bold'>2 </span><span style='font-size:9.0pt;mso-bidi-font-size:
12.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";mso-bidi-font-weight:bold'>系统信号流图</span><span lang=EN-US
style='font-size:9.0pt;mso-bidi-font-size:12.0pt;mso-bidi-font-weight:bold'><o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:21.1pt;mso-char-indent-count:2.01;
mso-char-indent-size:10.45pt'><span style='font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-weight:
bold'>（</span><span lang=EN-US style='mso-bidi-font-weight:bold'>2</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";mso-bidi-font-weight:bold'>）指定支路总数参数</span><span lang=EN-US
style='mso-bidi-font-weight:bold'>nblocks</span><span style='font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-weight:bold'>的值，并在</span><span lang=EN-US style='mso-bidi-font-weight:
bold'>ni</span><span style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";mso-bidi-font-weight:bold'>和</span><span
lang=EN-US style='mso-bidi-font-weight:bold'>di</span><span style='font-family:
宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-weight:bold'>（</span><span lang=EN-US style='mso-bidi-font-weight:
bold'>i = 1</span><span style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";mso-bidi-font-weight:bold'>到</span><span
lang=EN-US style='mso-bidi-font-weight:bold'> nblocks</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";mso-bidi-font-weight:bold'>）变量中分别输入每条支路传递函数的分子、分母系数。</span><span
lang=EN-US style='mso-bidi-font-weight:bold'><o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:21.1pt;mso-char-indent-count:2.01;
mso-char-indent-size:10.45pt'><span style='font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-weight:
bold'>（</span><span lang=EN-US style='mso-bidi-font-weight:bold'>3</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";mso-bidi-font-weight:bold'>）运行</span><span lang=EN-US
style='mso-bidi-font-weight:bold'>MATLAB</span><span style='font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-weight:bold'>程序</span><span lang=EN-US style='mso-bidi-font-weight:
bold'>blkbuild</span><span style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";mso-bidi-font-weight:bold'>，得到一个状态方程模型</span><span
lang=EN-US style='mso-bidi-font-weight:bold'>[a, b, c, d ]</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";mso-bidi-font-weight:bold'>。</span><span lang=EN-US
style='mso-bidi-font-weight:bold'><o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:21.1pt;mso-char-indent-count:2.01;
mso-char-indent-size:10.45pt'><span style='font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-weight:
bold'>（</span><span lang=EN-US style='mso-bidi-font-weight:bold'>4</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";mso-bidi-font-weight:bold'>）输入连接关系矩阵</span><span lang=EN-US
style='mso-bidi-font-weight:bold'>Q</span><span style='font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-weight:bold'>、输入向量</span><span lang=EN-US style='mso-bidi-font-weight:
bold'>IN</span><span style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";mso-bidi-font-weight:bold'>、输出向量</span><span
lang=EN-US style='mso-bidi-font-weight:bold'>OUT</span><span style='font-family:
宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-weight:bold'>。</span><span lang=EN-US style='mso-bidi-font-weight:
bold'><o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:49.55pt;mso-char-indent-count:4.72;
mso-char-indent-size:10.45pt'><span lang=EN-US style='mso-bidi-font-weight:
bold'>Q</span><span style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";mso-bidi-font-weight:bold'>矩阵的行数等于</span><span
lang=EN-US style='mso-bidi-font-weight:bold'>nblocks</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";mso-bidi-font-weight:bold'>；</span><span lang=EN-US
style='mso-bidi-font-weight:bold'><o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:49.55pt;mso-char-indent-count:4.72;
mso-char-indent-size:10.45pt'><span lang=EN-US style='mso-bidi-font-weight:
bold'>Q</span><span style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";mso-bidi-font-weight:bold'>矩阵的第一列从上到下依次是各支路的编号；</span><span
lang=EN-US style='mso-bidi-font-weight:bold'><o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:49.55pt;mso-char-indent-count:4.72;
mso-char-indent-size:10.45pt'><span lang=EN-US style='mso-bidi-font-weight:
bold'>Q</span><span style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";mso-bidi-font-weight:bold'>矩阵的第</span><span
lang=EN-US style='mso-bidi-font-weight:bold'>i</span><span style='font-family:
宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-weight:bold'>行的第二列及以后元素为进入该支路的所有支路的编号；</span><span lang=EN-US
style='mso-bidi-font-weight:bold'><o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:49.55pt;mso-char-indent-count:4.72;
mso-char-indent-size:10.45pt'><span style='font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-weight:
bold'>输入向量</span><span lang=EN-US style='mso-bidi-font-weight:bold'>IN</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";mso-bidi-font-weight:bold'>由输入信号所进入的支路编号构成；</span><span
lang=EN-US style='mso-bidi-font-weight:bold'><o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:49.55pt;mso-char-indent-count:4.72;
mso-char-indent-size:10.45pt'><span style='font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-weight:
bold'>输出向量</span><span lang=EN-US style='mso-bidi-font-weight:bold'>OUT</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";mso-bidi-font-weight:bold'>由输出信号所流出的支路编号构成；</span><span
lang=EN-US style='mso-bidi-font-weight:bold'><o:p></o:p></span></p>

<p class=MsoNormal style='text-indent:21.1pt;mso-char-indent-count:2.01;
mso-char-indent-size:10.45pt'><span style='font-family:宋体;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-weight:
bold'>（</span><span lang=EN-US style='mso-bidi-font-weight:bold'>5</span><span
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman";mso-bidi-font-weight:bold'>）输入函数</span><span lang=EN-US
style='mso-bidi-font-weight:bold'>[A</span><span style='font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-weight:bold'>，</span><span lang=EN-US style='mso-bidi-font-weight:
bold'>B</span><span style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";mso-bidi-font-weight:bold'>，</span><span
lang=EN-US style='mso-bidi-font-weight:bold'>C</span><span style='font-family:
宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-weight:bold'>，</span><span lang=EN-US style='mso-bidi-font-weight:
bold'>D]=connect</span><span style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";mso-bidi-font-weight:bold'>（</span><span
lang=EN-US style='mso-bidi-font-weight:bold'>a</span><span style='font-family:
宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-weight:bold'>，</span><span lang=EN-US style='mso-bidi-font-weight:
bold'>b</span><span style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";mso-bidi-font-weight:bold'>，</span><span
lang=EN-US style='mso-bidi-font-weight:bold'>c</span><span style='font-family:
宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
mso-bidi-font-weight:bold'>，</span><span lang=EN-US style='mso-bidi-font-weight:
bold'>d</span><span style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso