Scilab 5.4.0
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m_circle
y/(1+y) の等ゲイン等高線を複素平面にプロットする
呼出し手順
m_circle() m_circle(gain)
パラメータ
- gain
ゲインベクトル (単位:DB). デフォルト値は
- gain
=[-12 -8 -6 -5 -4 -3 -2 -1.4 -1 -.5 0.25 0.5 0.7 1 1.4 2 2.3 3 4 5 6 8 12]
説明
m_circle
は,複素平面(Re,Im)に
gain
引数で指定した
等ゲイン等高線を描画します.
gain
のデフォルト値は:
[-12 -8 -6 -5 -4 -3 -2 -1.4 -1 -.5 0.25 0.5 0.7 1 1.4 2 2.3 3 4 5 6 8 12]
m_circle
は nyquist
と共に使用されます.
例
s=poly(0,'s') h=syslin('c',(s^2+2*0.9*10*s+100)/(s^2+2*0.3*10.1*s+102.01)) nyquist(h,0.01,100,'(s^2+2*0.9*10*s+100)/(s^2+2*0.3*10.1*s+102.01)') m_circle();
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clf(); h1=h*syslin('c',(s^2+2*0.1*15.1*s+228.01)/(s^2+2*0.9*15*s+225)) nyquist([h1;h],0.01,100,['h1';'h']) m_circle([-8 -6 -4]);
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