Ch 1 lecture 3

Ch 1 lecture 3 - EE 3120 Linear Systems Analysis Lecture 3...

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

View Full Document Right Arrow Icon
EE 3120 Linear Systems Analysis Lecture 3 Elementary discrete-time signals and their manipulation f(t) analog signal for t in ( , ) - sampling f(t) with sampling period T > 0 gives a discrete time (D-T) signal ( ) f kT , where k is an integer ranging from - to [ ]: ( ) f k f kT = Define: ( ) f kT is a sequence of numbers assumes T = 1 D-T signals are also called sequences. Positive time sequences Negative time sequences [ ] 0 f k = [ ] 0 f k = for k < 0 for k > 0 .
Background image of page 1

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

View Full DocumentRight Arrow Icon
EE 3120 Linear Systems Analysis Lecture 3 Elementary discrete-time signals and their manipulation [ ] 1 f k = is a two sided sequence, the discrete counterpart of the constant function 0 [ ] 1 k = Impulse sequence Kronecker delta sequence 0 0 k k = if i is a fixed integer ; [ ] k i - [ ] k shifts to k i = 0 [ ] 1 k i - = k i = k i k k
Background image of page 2
EE 3120 Linear Systems Analysis Lecture 3 Elementary discrete-time signals and their manipulation [ ] [ ] [ ] i f k f i k i =- = - Impulse Sequence Could be samples of an analog signal [ 2] 4 f - = [ 1] 0 f
Background image of page 3

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

View Full DocumentRight Arrow Icon
Image of page 4
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 / 12

Ch 1 lecture 3 - EE 3120 Linear Systems Analysis Lecture 3...

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

View Full Document Right Arrow Icon
Ask a homework question - tutors are online