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Unformatted text preview: ECE-2025 Spring-2008 Lecture 6 Fourier Series Analysis 8-Sept-2008 09/05/2008 EE-2025 Fall-2008 jMc-BHJ 2 General Info Â¡ Help Sessions: Tues 6 and Thurs 6pm?? (see Help Sessions: Tues 6 and Thurs 6pm?? (see announcement) announcement) Â¡ Office Hours: Office Hours: Visit any Prof or TA available Â¡ T-square: square: OFFICIAL ANNOUNCEMENTS & Forums Â¡ Quiz #1 on 15 Quiz #1 on 15-Sept Sept Â¡ Coverage: HW #1, #2, #3 and #4 Â¡ More Problems (w/ solutions) are on the SP-First CDROM web site Â¡ Lab #3: bring headphones Â¡ Lots to read about chirps Â¡ Lab #2 report due at beginning of lab Â¡ Ask your grading TA about his/her format Â¡ Prob Set #3 due THIS Week 09/05/2008 EE-2025 Fall-2008 jMc-BHJ 3 CHIRP SPECTROGRAM Ï• Î² Î± Ïˆ Ï• Î² Î± + + = â‡’ + + = t t t t t A t x 2 2 ) ( ) cos( ) ( Ï• Î² Î± Ïˆ Ï• Î² Î± + + = â‡’ + + = t t t t t A t x 2 2 ) ( ) cos( ) ( Î² Î± Ïˆ Ï‰ + = = â‡’ t t t dt d i 2 ) ( ) ( Time Frequency 09/05/2008 EE-2025 Fall-2008 jMc-BHJ 4 CHIRP WAVEFORM 09/05/2008 EE-2025 Fall-2008 jMc-BHJ 5 SINE-WAVE FREQUENCY MODULATION (FM) Look at CD-ROM Demos in Ch 3 ) ) sin( cos( ) ( Ï• Ïˆ Î² Î± + + = t A t x ) cos( ) ( ) ( Ïˆ Î² Î±Î² Ïˆ Ï‰ + = = â‡’ t t t dt d i Time Frequency Police siren?? 09/05/2008 EE-2025 Fall-2008 jMc-BHJ 6 READING ASSIGNMENTS Â¡ This Lecture: Â¡ Fourier Series in Ch 3, Sects 3 Fourier Series in Ch 3, Sects 3-4, 3...
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This note was uploaded on 09/17/2009 for the course ECE 2025 taught by Professor Juang during the Spring '08 term at Georgia Tech.
- Spring '08
- Signal Processing