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自动控制原理第五章频域分析法 - 频率法4. 相频宽 ω p 指相频特性 ∠G(jω) 等于 -π/2 时所对应的频率。 ω p 较高 , 说明输入信号频率较高、变化较快时 , 输出才能落后 π/2。这意味着系统反应迅速 , 快速性好。5.M(0) 指零频率 (ω=0) 时的振幅比 , 具有一定幅值 A r 的零频输入信号 , 即直流信号或常值信号 , 如 M(0)=1, 1 则表示系统阶跃响应的终值等于输入 , 静差为零。而M(0)≠1 , 表明系统有静差。所以 M(0) 的数值与 1 相差的大小 , 反映了系统的稳态精度 ,M(0) 越阶近于 1, 系统的稳态精度越高。
自动控制原理第五章频域分析法 - 频率法频带 ω b 大 , 峰值 M r小 , M(0)≈1 , 则系统的品质好 , 这是由频率特性分析系统性能品质的重要准则。
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自动控制原理第一章
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自动控制原理三、反
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自动控制原理第二章
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自动控制原理5. 正弦
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自动控制原理三、拉
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自动控制原理二、对
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自动控制原理三、理
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自动控制原理本章小
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自动控制原理第三章
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自动控制原理2. 速度
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自动控制原理则 Th( t) 1
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自动控制原理闭环传
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自动控制原理由于2 dn
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自动控制原理所以cosdt
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自动控制原理5. 振荡
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自动控制原理2. 测速
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自动控制原理各阶赫
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自动控制原理3. 劳思 (
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自动控制原理(2) 劳思
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自动控制原理由稳定
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自动控制原理求出 EN
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自动控制原理第四章
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自动控制原理证明 :
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自动控制原理会合角
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自动控制原理(7) 分离
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自动控制原理解之 ,
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自动控制原理例第四
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自动控制原理式中第
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自动控制原理二、主
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自动控制原理一阶系
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自动控制原理常规根
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自动控制原理开环极
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自动控制原理第五章
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自动控制原理11+ω T2 2
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自动控制原理动态数
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自动控制原理三、微
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自动控制原理五、一
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自动控制原理第六章
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自动控制原理第七章
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自动控制原理二、数
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自动控制原理7.2 信号
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自动控制原理系数第
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自动控制原理三、Z 变
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自动控制原理例试求
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自动控制原理7. 终值
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自动控制原理查表 7-1
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自动控制原理也可由
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自动控制原理一、稳
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自动控制原理次要带j
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自动控制原理由变换
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自动控制原理四、稳
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自动控制原理第八章
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自动控制原理2. 状态
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自动控制原理7. 状态
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自动控制原理1. 能控
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自动控制原理2. 能观
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自动控制原理二、传
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自动控制原理本章小
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