Description
Please see the attached file for details.. Report is required. Project Progress Report is required on the 16th if March 2024. The work should be solely yours and not plagerized from any source. No use of AI.
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TIME DIVISION MULTIPLEXING
AND FOURIER ANALYSIS OF
COMMUNICATION SYSTEM
SIGNALS
MIDTERM PROJECT
Grading Scheme
• Overall Midterm Project Grade Breakdown:
• VI: 70%
• Report: 30%
VI Multiplexer Requirements
• Generate 5 different analog waveforms (10 pts):
•
Sine
•
Square
•
Sawtooth
•
Two Sound Files
• These two sound files (.wav) should be of the user’s choosing (5 pts)
• Build a VI that:
• Performs Fourier transform of the 5 input signals (15 pts)
• The transform should be plotted, and key frequency values should be visible.
• Combines all the five input signals using:
• Time Division multiplexing (15 pts)
• Concatenate function (10 pts)
• Performs Fourier transform of the Combined signal (10 pts)
• Note: the Fourier transform plot should be in the same relative scale as the 5 input signals!
• Separates the combined signals back to their original forms(15 pts)
• Converts the separated signals back to their correct scales. (5 pts)
• Displays the five received signals (5 pts)
• Plays the sound files on the speakers of the computer and allow user to switch between them (10 pts)
Report Requirements
• Compare the Fourier transform of the 5 input waveforms.
• Compare them to the combined Fourier transform (both
TDM and Concatenated).
• What are some of the features between the two different forms of
combination?
• Is the Fourier transform always useful for signal analysis?
• Try varying your sine, square, and sawtooth frequencies to see
how they affect your combined signal and Fourier analysis.
• Talk about the various multiplexing, especially TDM.
• Make sure you discuss your VIs in great detail.
• You are responsible for all other details required in a
standard lab report.
Reference
Fourier Series Equation
Discrete Fourier Transform Equation
• FFT requires N be a power of 2.
• 2, 4, 8, 16, … 1024, 2048, etc
• For further information on how FFT works:
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