In this post, we’ll share some lab experiments related to pole zero function for university students. You can use these to practice or for your lab report. Please make sure to credit the source!

To gain an in-depth understanding of Pole Zero Function, browse this video first:

To understand commands used in the code below, browse this guide: Basic MATLAB commands

Lab Report for Pole Zero Function

There are three tasks in total. If you have concerns regarding any, feel free to leave us a comment – we will get back to you asap.

Task: Perform pole zero function and frequency response by using MATLAB

MATLAB Code:

b=[0 1 1]

a=[1 -2 3]

roots (a)

roots (b)

zplane(b,a)

figure

pzmap(b,a)

MATLAB Code:

b=[2 5 9 5 3]

a=[5 45 2 1 1]

freqz(b,a)

MATLAB Code:

[z,p,k]=ellip(4,3,30,200/500)

zplane(z,p)

grid

title(“4th Order Elliptic Lowpass Digital Filter”)

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