Date post: | 14-Sep-2015 |
Category: |
Documents |
Upload: | jayburdeos |
View: | 10 times |
Download: | 2 times |
ECE402 Introduction
ECE 401-1 1
ECE 401-1 2
Intended Learning Outcomes
Describe signals systems and signal processing. Compare and contrast analog signal processing and digital signal
processing. Distinguish between the classifications of signals.
ECE 401-1 3
ECE 401-1 4
ECE 401-1 5
ECE 401-1 6
ECE 401-1 7
ECE 401-1 8
ECE 401-1 9
ECE 401-1 10
ECE 401-1 11
ECE 401-1 12
ECE 401-1 13
ECE 401-1 14
ECE 401-1 15
ECE 401-1 16
Classifications of Signals
Continuous-Time Signal Discrete-Time Signal Continuous-Valued Signal Discrete-Valued Signal
ECE 401-1 17
Classifications of Signals
Continuous-Time Signals: signal is defined for every value of time in a given interval (a,b), where a - and b .
Examples: voltage as a function of time, height as a function of pressure, number of positron emissions as a function of time.
ECE 401-1 18
Classifications of Signals
Discrete-Time Signals: signal is defined only for certain specific values of time; typically taken to be equally spaced points in an interval.
Examples: number of stocks traded per day, average income per province.
ECE 401-1 19
Classifications of Signals
Continuous-Valued Signals: signal amplitude takes on a spectrum of values with in one or more intervals.
Examples: color, temperature, pain-level
ECE 401-1 20
Classifications of Signals
Discrete-Valued Signals: signal amplitude takes on values from a finite set.
Examples: digital image, population of a country