Chapter 2 LTI Systems 92.3. 1 Properties of Convolution Integral and Convolution Sum 1. The Commutative Property(交换律) lt ak h(O)=h()*x() x*小=小小]x口 x()*( h(O)*3 Chapter 2 LTI Systems §2.3.1 Properties of Convolution Integral and Convolution Sum 1. The Commutative Property (交换律） xnhn= hn xn x(t)h(t) = h(t) x(t) x(t)h(t) h(t) x(t) h(t) x(t) h(t) x(t)