Inverse Z Transform Z反变换

Long Division Method长除法

Partial Fraction Expansion

        部分因式展开

H

Homework: p223: 6.7 

                     p224:6.16

Inverse Z Transform Z反变换

     Definition定义

     Computation Methods求解方法

         1. Eye Matching观察法

          Page 188: Example 6.23

         2. Impulse Function Method冲激函数法

                     Knowing:     Z^-1{ z ^-k } = d [ n-k ]

Goal:

         3. Step Function Method阶跃函数法

Knowing:
Goal:

Long Division Method长除法

     Standard Form标准型

            Numerator分子and Denominator分母

          are not always of same order,

          because it is often that M≠N .

     Long Division长除法

              How many denominators分母

           are there in the numerator分子.

Goal:

                       P189 eg.6.25

Partial Fraction Expansion

           部分因式分解

For given
Let

         Thus from {a_k , b_k , f_n(β), g_n(α, β)},

               α and β are solvable可解.

                 Skills are more helpful!

                                              P193 eg.6.28