Lab2 Report

# Lab2 Report - Ryan Beasley ECE 405L Experiment#2 Properties...

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Ryan Beasley 10-20-09 ECE 405L Experiment #2 Properties of On-Off-Keyed (OOK) Periodically Gated Waveforms

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Ryan Beasley Experiment #2 ECE 405L Objective: One objective of this lab is to investigate the mathematical and actual properties of on-off keyed periodically gated waveforms (the simplest digital signal) using common electronic communications laboratory equipment. Another objective of this lab is to learn how to use the laboratory equipment to modulate different signals. Theories: In this lab we evaluated common mathematical theories that help us derive the Fourier spectrum of a sine-wave, square-wave, rectangular wave, and amplitude modulated waves. We also evaluated the theories of on-off-keyed waveforms and how to create them using our laboratory equipment. Pre-lab: The pre-lab calculations were calculated using the following three equations: = + av 1Tt0t0 Tftdt = + ( ) ak 2Tt0t0 Tftcos kω0t dt = + ( ) bk 2Tt0t0 Tftsin kω0t dt All of the pre-lab calculations are shown on the following page. Some intermediate steps are not shown.
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