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Unformatted text preview: Lecture S6 Muddiest Points General Comments Not many cards today, probably because folks were delayed to class by the quiz. Responses to Muddiest-Part-of-the-Lecture Cards (18 cards) 1. What is the physical significance of convolution? (1 student) The convolution integral is a consequence of linearity and time-invariance, so in a sense all the physics is based in the analysis that leads on to conclude that a system is LTI everything else is a mathematical consequence of that. However, you can also understand the convolution integral as summing up lots of delayed impulse responses, which is a result of the LTI assumption, and representing u ( t ) as a sum of delayed impulses. 2. So if there is a West Coast school of thought that block diagrams should be drawn right to left, dont these folks write text books? (1) Actually, they do, though most are graduate texts. 3. In the 3rd PRS question, why can we assume that f ( t ) g ( t ) in the boxed region?...
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This note was uploaded on 01/28/2012 for the course AERO 16.01 taught by Professor Markdrela during the Fall '05 term at MIT.
- Fall '05