Introduction Lab

  1. Watch video entitled “Module 1 – Introduction to MATLAB”

  2. Download and review the Matlab supplement on plotting signals.
  3. Work the two problems below.
  4. 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”.
  6. In this lab, you will create and analyze a number of continuous and discrete-time sinusoids using MATLAB. 

Activity 1:

Consider the discrete-time signal and assumen 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.


  1. Are the signals periodic? Explain.



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