Revision as of 06:37, 27 August 2014

Lecture 2 Blog, ECE438 Fall 2013, Prof. Boutin

Wednesday August 27, 2013 (Week 1) - See Course Outline.

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In the second lecture, I explained how to transition from the continuous-time Fourier transform in terms of $ \omega $, which you have seen in ECE301, to the continuous-time Fourier transform in terms of f. We then saw a few important properties of the FT (namely, duality, multiplication, and convolution) and we computed the Fourier transform of some basic signals (namely, Dirac delta, rect, sinc, and complex exponential.)

Action items:

• Take a look at the following practice problem. Before looking at the answers on the page, try to solve the problem on your own and write down your solution. (You are welcome to write it directly on the page to get feedback.) Then read the other students solutions and try to find the "best one". If you find a mistake, or have a questiont/comment, post it directly on the page. (Please contact your instructor if you wish to use an anonymous login.)
  • Compute the Fourier transform of a rect and a sinc

Other elevant Rhea pages:

• About the CTFT in terms of f and its properties
• Rhea's Collective Table of Formulas.
  • CTFT

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