状态空间表达 D ()=Ax(1)+Bu(t) y(t)=Cx(t)+Du(t) School of Mechanical Engineering ME369-lecture 9.1 Shanghai Jiao Tong University Fall 2015 例1] M d +b+e=0) dt x(t)=x(t) M x2(t)=x(t) L白b y=x School of Mechanical Engineering ME369-lecture 9.1 Shanghai Jiao Tong University Fall 2015 22 ME369-lecture 9.1 Fall 2015 School of Mechanical Engineering Shanghai Jiao Tong University 状态空间表达 x Ax Bu ( ) ( ) ( ) t t t   y Cx Du ( ) ( ) ( ) t t t   ME369-lecture 9.1 Fall 2015 School of Mechanical Engineering Shanghai Jiao Tong University [例1] 2 2 ( ) d x dx M b kx u t dt dt    1 x t x t ( ) ( )  2 x t x t ( ) ( )  1 y x 