Nyquist图 源代码

% % INYQST INYQST is the M-file which is used to get the % Inverse Nyquist Plot for the given system % % Autho…

k1=16.7/0.125; z1=[0]; p1=[-1.25 -4 -16]; [num1,den1]=zp2tf(z1,p1,k1); [num,den]=cloop(num1,den1); [z,p,k]=tf2zp(num,den); p…

k1=1700;k2=6300; w=8:1:80; num1=[k1];num2=[k2]; den=[1 52 100 0]; figure(1) nyquist(num1,den,w); grid on; title('Nyquist 曲线…

管理命令和函数 help 在线帮助文件 doc 装入超文本说明 what M、MAT、MEX文件的目录列表 type 列出M文件 …

k=1; num=k; den=[1,1,0,0]; g=tf(num,den); nyquist(g)

;nyquist plug-in ;version 1 ;type analyze ;name "Sample Analyze Nyquist Plug-in..." ;action "Analyzing absolutely nothing..." (lis…

G=[tf([1 0],[1 1 1]) tf([0 1],[1 1 2]);tf([1 -1],[1 2 3]) 1]; bode(G); grid figure nyquist(G); grid

k=1; num=k; den=[1,1,0,0]; g=tf(num,den); nyquist(g) %margin(g)

k=0.5; num=k; den=[1,-1]; g=tf(num,den); nyquist(g)

G=[tf([1 0],[1 1 1]) tf([0 1],[1 1 2]);tf([1 -1],[1 2 3]) 1]; bode(G); grid figure nyquist(G); grid