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lecture2a - EEE455/ 591 EEE455/ 591 Review of Fourier...

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Unformatted text preview: EEE455/ 591 EEE455/ 591 Review of Fourier Analysis Review of Fourier Analysis Reading: Sections 2.1 and 2.2 of Principles Reading: Sections 2.1 and 2.2 of Principles Focus on 2.2 Focus on 2.2 Topics: Topics: 1. What is frequency? 1. What is frequency? 2. Fourier transform defined 2. Fourier transform defined 3. Fourier series versus transform 3. Fourier series versus transform 4. Review: Transform of well known functions 4. Review: Transform of well known functions 5. Basic operations of Fourier transform 5. Basic operations of Fourier transform 1. What is frequency? 1. Sinusoids (Amplitude, fr equency, phase) Why focus on frequency? • Example: Telecom real estate • We perceive often in frequency than time, e.g. audio, Why Study Signals in the Frequency Domain? • More bandwidth (broadband) allows signal to change rapidly, i.e. higher data rate. E.g. Consider speeding up a pulse transmission • Ease of moving signals in frequency by modulation. 2. Fourier Transform and I nverse Defined2....
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This note was uploaded on 11/01/2009 for the course EEE 455 taught by Professor Hui during the Spring '09 term at ASU.

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lecture2a - EEE455/ 591 EEE455/ 591 Review of Fourier...

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