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自动控制原理5.5 闭环频率特性一、尼柯尔斯图 (Nichols)第五章频域分析法 - 频率法对于单位反馈控制系统 , 闭环传递函数为则频率特性Gs( )Φ ( s)=1 + Gs ( )G(j ω )Φ (j ω ) = 1 + G (j ω)
自动控制原理第五章频域分析法 - 频率法G(j ω) = G(j ω) e = A( ω)ej ∠G(j ω) j ϕ( ω)( ) ( )j ∠Φ(j ω ) j α( ω)jω jω e M( ω)eΦ = Φ =M(ω) 为闭环幅频α(ω) 为闭环相频M( ω)ej ( )A( ϕ ω( ) ω ) e=( )jϕ ( ω )1 + A ω ejα ω上式经过变换可得到如下关系式
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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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自动控制原理例第六
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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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