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Latest revision as of 16:30, 25 April 2019
Contents
Single and Double Sided Amplitude Modulation Exercise
Exercise idea, audio files, and ece301conv.m MATLAB file used from Professor Chih-Chun Wang's Fall 2018 Team Project Assignment.
All other MATLAB scripts written by Humza Nasir
Introduction
This is an exercise in Amplitude Modulation using sine and cosine functions as carriers. You will essentially create two different "radio" transmitters/receivers. Each has two MATLAB scripts pertaining to them. In this Wiki page, I will walk through the process of both creating the radio signals, as well as demodulating it.
Creating the Radio Signals
You have been given six audio files (x1.wav through x6.wav). The first radio signal will be a Double Sided modulation that carries audio files 1, 2 and 3. You remember this at a cosine carrier from class. The second radio signal will be a Single Sided modulation of all 6 audio files. This will also be a cosine shift, but will be low pass filtered
Radio Signal 1 will carry file 1 at 1000Hz, file 2 at 4000Hz, and file 3 at 7000.
Step 1
In both cases, we must first low pass filter each audio file
PAGE IS WORK IN PROGRSSS
