# HW and Lab

**jarzmgismilas**

## HW2 – Continuous-Time Signals

- Read Chapter 1 in the text Signals and Systems Using MATLAB.
- Work the following homework problems below.
- Submit homework solutions via Assignment Upload Tool. Show all work for full credit.

- Determine if x(t) = cos(8t) + 4sin(8t) is periodic; if periodic, calculate the period.
- Determine if x(t) = cos(3t + π/4 ) is periodic; if periodic, calculate the period.

For problems 3 and 4 match the signal to the below graphs.

- Match the signal to the appropriate sketch a thru d above.
- a.
- b.
- c.
- d.

- Match the signal to the appropriate sketch a thru d above.
- a.
- b.
- c.
- d.

## Lab2 – Continuous-Time Signals

- Watch video entitled “Module 2 – Signal Operations in MATLAB”
- Work the following two lab assignments below.
- Include answers for Problems and include MATLAB coding along with any output plots that support solutions into a Word document entitled “Lab2_StudentID”. Where your student id is substituted in the file name.
- Upload file “Lab2_StudentID”.

Work the following two lab assignments below using MATLAB.

**Activity 1:**

Consider the following continuous signal:

Plot the continuous-time signal over the range .

Also, break up the time range into two ranges t1=[-1 0] and t2=[0:0.1:5]. Then concatenate the results, i.e. t=[t1 t2].

**Activity 2:**

Consider a finite-support signal

x(t) = t |

and zero elsewhere.

- Using Matlab, plot x(t+1)
- Using Matlab, plot x(-t+1)
- Add the above two signals together and plot the new signal y(t).

- 7 years ago
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