{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

EE3TP4_3_DTSignals_v2_Lecture 5

# EE3TP4_3_DTSignals_v2_Lecture 5 - Discrete-Time Signals...

This preview shows pages 1–4. Sign up to view the full content.

1/12 Discrete-Time Signals These overheads were originally developed by Mark Fowler at Binghamton University, State University of New York.

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

View Full Document
2/12 What is a discrete-time (D-T) signal? A discrete time signal is a sequence of numbers indexed by integers Example: x [ n ] where n = …, - 3, -2, -1, 0, 1, 2, 3, … Brackets indicate discrete-time signal. We use parentheses to indicate a C-T signal. x [ n ] n A stem plot emphasizes that the signal does not exist in-between integer n values Sometimes we violate this and plot with line segments connecting the dots. Remember : for our point of view, D-T signals are needed to allow us to process signals (i.e. information) using D-T systems rather than only Continuous-Time systems
3/12 D-T systems allow us to process information in much more flexible way than C-T systems! C-T system (RLC, etc.) D-T system (computer) Analog to Digital Converter (ADC) Sensor x ( t ) y ( t ) y [ n ] z [ n ] T 2T 3T “sampling” is how we typically get D-T signals In this case the D-T signal y [ n ] is related to the C-T signal y ( t ) by: T

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.

{[ snackBarMessage ]}

### Page1 / 12

EE3TP4_3_DTSignals_v2_Lecture 5 - Discrete-Time Signals...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online