EE3TP4_1_SystemsOverview_Lecture 3

EE3TP4_1_SystemsOver - Signals and Systems A Signal is a time-varying function(e.g voltage or other quantity that generally carries some

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A Signal is a time-varying function (e.g., voltage or other quantity) that generally carries some information • The role of the System is often to extract, modify, transform, or manipulate that carried information. Signals and Systems uses abstracted mathematical models to predict what a system does to a signal. Signals and Systems Audio Amplifier v in (t) v out (t) Physical System Electronics Voltage System Input x ( t ) Output y ( t ) System Model Math “Model” Math Function e.g., linear system These overheads were originally developed by Mark Fowler at Binghamton University, State University of New York. abstraction
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Forward System Feedback speed: v ( t ) control forces: f c ( t ) The Car Cruise Control t t t external forces Example System and Signal Scenarios 1. Given a system, determine a signal that will pass through it well – e.g., Communication Transmitter 2. Given a type of signal, design a system that will pass it well – e.g., Audio Amplifier 3. Design a system that will make a desired change to a signal
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This note was uploaded on 02/01/2011 for the course ECE 3TP4 taught by Professor Drterrencetodd during the Fall '10 term at McMaster University.

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EE3TP4_1_SystemsOver - Signals and Systems A Signal is a time-varying function(e.g voltage or other quantity that generally carries some

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