lecture 1 intro

# lecture 1 intro - Linear Systems Analysis Lecture 1...

This preview shows pages 1–6. Sign up to view the full content.

Linear Systems Analysis Lecture 1 Introduction to signals and systems Signals: single valued functions that carry information (e.g. voice, radar, control heart EKG, brainwaves, 2-D pictures {x,y}, 3-D video {x,y,t}) Systems: perform some kind of manipulation (processing) of signals (e.g. microphone, speaker, amplifier, demodulator) Continuous time signals – signals defined at every instant in time. Usually denoted f(t) for all t (- , ). In reality, no signal starts from - and lasts forever but it is convenient to represent signals this way. Discrete time signals – signals defined only at discrete instants of time, but have a continuous range of amplitudes Digital signals – discrete time signals with discrete (quantized) amplitudes

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Linear Systems Analysis Lecture 1 Introduction to signals and systems Analog signal Digital Signal
Linear Systems Analysis Lecture 1 Introduction to signals and systems Elementary continuous time functions: Constant f(t) : = 1 , for all t

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Linear Systems Analysis Lecture 1 Introduction to signals and systems unit step q(t) : = 1, for t 0 0, for t < 0
Linear Systems Analysis Lecture 1 Introduction to signals and systems unit ramp r(t) : = t for t 0 0 for t < 0

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

## This note was uploaded on 02/06/2012 for the course EE 2120 taught by Professor Aravena during the Fall '08 term at LSU.

### Page1 / 10

lecture 1 intro - Linear Systems Analysis Lecture 1...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online