Z变换的主要性质(定理)(下册P73)序号序列Z变换收敛域1()xn()Xz12xxRzR()hn()Hz12hhRzR2()()axnbhn()()aXzbHz1122max(,)min(,)xhxhRRzRR3Re()xn1()()2XzXz12xxRzR4Im()xn1()()2XzXzj12xxRzR5()xn()Xz12xxRzR6()xn1()Xz112xxRzR7()naxn1()Xaz12xxaRzaR8(1)()nxn()Xz12xxRzR9()nxn()dXzzdz12xxRzR10()xnm()mzXz12xxRzR11()()xnhn()()XzHz1122max(,)min(,)xhxhRRzRR12()()xnhn1()()2czdvXvHjvv1122xhxhRRzRR130()nkxk()1zXzz141()xnna10()zaaXvzdvv151()xnn10()zXvvdv16(0)lim()zxXz()xn为因果序列1xzR171()lim(1)()zxzXz()z1(1)()为因果序列,且当时收敛xnzXz