Chapter 2 LTI SyStems 52.3 Properties of LTI Systems x()厂()y()=x(0)*h() x*风n LT系统的特性可由单位冲激响应完全描述 Example 2.9 1n=0,1 h 0 otherwise ① LTI SySten ② Nonlinear System ③ Time-variant System (a)]=(x[]+x[n-1)2(a)y()=cos(3)x(t) 巩l=max(pun -1)(b)y()=ex()10 Chapter 2 LTI Systems §2.3 Properties of LTI Systems x(t) h(t) y(t) = x(t)h(t) hn yn= xnhn xn LTI系统的特性可由单位冲激响应完全描述 Example 2.9       = 0 1 h n otherwise n = 0 ,1 ① LTI system ② Nonlinear System ( )   (    ) 2 a y n = x n + x n −1 (b) yn= max(xn, xn−1) ③ Time-variant System (a cos 3 ) y t t x t ( ) = ( ) ( ) (b ) ( ) ( ) t y t e x t =