ECE
hw11.220.06

# hw11.220.06 - ECE 220 Multimedia Signal Processing November...

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ECE 220 Multimedia Signal Processing November 7, 2006 Fall 2006 Homework 11 Assigned: Tuesday, November 7, 2006 Due: Wednesday, November 15, by 4:30 pm in the 220 lock-box on the 2nd floor of Phillips. Solutions will be posted on the web by 5 pm. Office hours: See the web page for everyone’s office hours: Goals & concepts: Continuous-time Fourier Transform: forward transform, inverse transform, using transform pairs, ideal low-pass filter in time and frequency, analyzing filtering operations in the frequency domain. Relevant text sections: Chapter 11: omit sections 11-6.3.3, 11-7.2, 11-7.3. Helpful problems are from the CD, under “Homework Problems with Solutions” — Chapter 11 The Continuous Time Fourier Transform All of the (short list of) problems for Chapter 11 are good — use the titles to pick those topics on which you think you need extra practice. Suggested Practice Problems. NOT GRADED but suggested if you need more practice or review. 11.2(a,b), 11.4(a, b, d), 11.7(b), 11.12, 11.14 1. Sampling of cosines. Consider ideal sampling of a CT signal at sampling frequency The input signal is given by . (a) Give an expression for the CTFT and sketch it on the range .

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