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Scilab help >> CACSD > Plot and display > m_circle

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_circlenyquistと共に使用されます.

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();
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]);

参照

  • nyquist — ナイキスト線図
  • chart — ニコルス線図における等高線プロット
  • black — Black図 (ニコルス線図)
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Last updated:
Mon Oct 01 17:40:27 CEST 2012