Double Sideband Modulation and Demodulation (DSBSC)

This is lab 6 of 20 in the course

by Emona Tims

In this lab, students will create a DSBSC signal and gain insight into the meaning of “Suppressed Carrier.” They will also use product demodulation to recover the message and examine the effect of phase and frequency errors on the recovery process.

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LEARNING OBJECTIVES

After completing this lab, students will be able to:

Generate a real DSBSC signal.
Examine a real DSBSC signal with scope and compare it to its original message.
Use multiple message sources in their DSBSC examination.
Describe the term “depth of modulation.”
Describe the effects and meaning of over and under modulation of the carrier.
Compare original and demodulated signals.
Describe distortion in the recovered signal.
Identify the effect of phase and frequency errors on the demodulation process.
Explain the term “product modulation.”

REQUIRED SKILLS

Basic proficiency using ELVIS III Instruments
Basic Circuits Knowledge

Requirements

NI ELVIS III

Engineering laboratory solution for project-based learning that combines instrumentation and embedded design with a web-driven experience, delivering a greater understanding of engineering fundamentals and system design. Learn more

Emona Communications Board for NI ELVIS III

Application board for the NI ELVIS III developed to teach introductory digital and analog communications topics using a completely hands-on approach. Learn more

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Instructor resources are available. Get access