2025-L11 - ECE-2025 Spring-2009 Info Lab and HW Lab#4#4...

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ECE-2025 Spring-2009 Lecture 11 Linearity, Time-Invariance and Convolution 16-Feb-2009 fo: Lab and HW Info: Lab and HW ab #4 ± Lab #4 ± Listening Test of Speech Synthesis ± Formal Lab Report: will be worth 150 pts ± HW #6 due this week ± Lab #6 starts, and continues with Lab #7: ± Aliasing & Sampling of Images ± igital Camera: interpolation Digital Camera: interpolation ± Quiz #1 grading issues? esolve them no later than riday 20 eb 2/15/2009 ECE-2025 Spring-09 jMc 2 ± Resolve them no later than Friday, 20-Feb ampling Images Sampling Images yy = xx(1:2:end,1:2:end) 2/15/2009 ECE-2025 Spring-09 jMc 3 2/15/2009 ECE-2025 Spring-09 jMc 4 Lecture
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EADING ASSIGNMENTS READING ASSIGNMENTS ± This Lecture: ± Chapter 5, Sections 5-5 and 5-6 ± Section 5-4 will be covered, but not “in depth” ± Other Reading: ± ecitation: Ch. 5, Sects 5- , 5- &5- Recitation: Ch. 5, Sects 5 6, 5 7 & 5 8 ± CONVOLUTION ± Next Lecture: start Chapter 6 2/15/2009 ECE-2025 Spring-04 jMc 5 p ECTURE OBJECTIVES LECTURE OBJECTIVES LTI SYSTEMS ± GENERAL PROPERTIES of FILTERS ± L INEARITY ± T IME- I NVARIANCE ± ==> CONVOLUTION ± BLOCK DIAGRAM REPRESENTATION ± Components for Hardware ± Connect Simple Filters Together to Build More omplicated Systems 2/15/2009 ECE-2025 Spring-04 jMc 6 Complicated Systems VERVIEW OVERVIEW ± IMPULSE RESPONSE, ± FIR case: same as ] [ n h } { b ± CONVOLUTION ± ENERAL: = k GENERAL: ± GENERAL CLASS of SYSTEMS INEAR and TIME VARIANT ] [ ] [ ] [ n x n h n y ± LINEAR and TIME-INVARIANT ± ALL LTI systems have h [ n ] & use convolution 2/15/2009 ECE-2025 Spring-04 jMc 7 IGITAL FILTERING DIGITAL FILTERING FILTER D-to-A A-to-D x(t) y(t) y[n] x[n] ± CONCENTRATE on the FILTER (DSP) ± DISCRETE-TIME SIGNALS ± FUNCTIONS of n , the “time index” ± INPUT x [ n ] ±
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This note was uploaded on 01/27/2011 for the course ECE 2025 taught by Professor Juang during the Spring '08 term at Georgia Tech.

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2025-L11 - ECE-2025 Spring-2009 Info Lab and HW Lab#4#4...

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