DescriptionSignals and Systems Theory and Lab – Week 1 Lab

ET382 W1 Lab

Lab 1 – Introduction

1.

2.

3.

4.

Watch video entitled “Module 1 – Introduction to MATLAB”

Download and review the Supplemental Questions section on plotting signals.

Work the two problems below.

Include answers for Problems and include MATLAB coding along with any output plots

that support solutions into one Word document entitled “Lab1_StudentID”. Where your

student id is substituted in the file name.

5. Upload file “Lab1_StudentID”.

In this lab, you will create and analyze a number of continuous and discrete-time

sinusoids using MATLAB.

IMPORTANT NOTE: You must include screenshots of MATLAB coding and MATLAB

outputs in your lab submission. The screenshots MUST have the date and time stamp

from Windows that appears in the lower right corner of the screen or else the lab will be

worth 1%. See example below.

Activity 1:

Consider the discrete-time signal and assume N=12.

.

For M = 4, 5, and 10, plot xM[n] on the interval 0 ≤ n ≤ 2N-1. Use stem in MATLAB to create

your plots, and be sure to appropriately label your axes. (You can copy your plots by selecting

Edit > Copy Figure at the top of the figure pane.) Using Insert –> Arrow at the top of the figure

pane, insert an arrow to indicate the end of the first period and beginning of the next period.

Activity 2:

Consider the following two signals:

Assume N = 6 for signal x1[n]. Plot each signal separately for the interval of 0 ≤ n ≤ 24. Use

stem and label your axes.

Question:

1. Are the signals periodic? Explain.

Please fill out and use the following Lab Report Template when submitting your lab work.

Please read and follow the guidelines given in the Solutions Template in submitting all of your

lab work.

Establishes an understanding of continuous- 40

time and discrete-time signals and systems

Demonstrates the ability to perform

numerical analysis and symbolic

computations

40

Uses graphics, numerical expressions and

tables to illustrate ideas

Excellent

Competent

Needs

Improvement

Numerical

Numerical

The need for

expressions,

expressions,

graphical or

images, tables, images, tables, numerical

and graphs are and graphs are information is

used as needed generally used recognized but

and are in the as needed and presentation is

proper format. are in the

flawed or such

proper format information is

with few errors. not provided but

needed to

illustrate ideas.

10

5

3

Provides a well written report ( Following

10

APA formatting, including figures, equations

and answer to the questions)

TOTAL

100

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