AR digital filter. Using Example 16.40 as a guide, compose a Matlab script to implement a...

AR digital filter. Using Example 16.40 as a guide, compose a Matlab script to implement a general AR digital filter. Verify your program by computing hi for 0 ≤ i ≤ 50 for the first-order AR filters following coefficients.

1. a = −0.9

2. a = 1

3. a = 1.1

4. a = 10

Example 16.40

AR digital filter

Figure 16.38 shows the Matlab function that implements an AR digital filter of order my, determined by the number of feedback coefficients. Also shown are the simple programs that test the first-order and second-order AR filter function with a unit-sample sequence to generate the digital filter unit-sample response.

This script tests this function as a second-order AR filter:

Figure 16.38

Matlab script that generates the output of an AR digital filter when input x and my coefficient array, and output y size are specified.