pade_app.m

来自「包含大量遗传算法程序」· M 代码 · 共 6 行

function Gr=pade_app(c,r,k)
w=-c(r+2:r+k+1)'; vv=[c(r+1:-1:1)'; zeros(k-1-r,1)];
W=rot90(hankel(c(r+k:-1:r+1),vv)); V=rot90(hankel(c(r:-1:1)));
x=[1 (W\w)']; dred=x(k+1:-1:1)/x(k+1); 
y=[c(1) x(2:r+1)*V'+c(2:r+1)]; nred=y(r+1:-1:1)/x(k+1); Gr=tf(nred,dred);