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ECEN3714 Network Analysis Lecture #4 21 January 2015 Dr. George Scheets www.okstate.edu/elec-eng/scheets/ecen3714 n Labs commence this week u Wednesday: EN510 u Friday: EN019 n Quiz Friday (Laplace Transforms) u Open book, notes, instructor n Homework: Old Quiz #1
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OSI IEEE n January General Meeting n 5:30-6:30 pm, Wednesday, 21 January n ES201b n Reps from Grand River Dam will present u Operate 3 dams, 2 lakes, Salina Pump Storage n Dinner will be served + 3 points extra credit n All are invited
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Transforms X(s) = x(t) e -st dt 0-0- ∞ Laplace ∞ X(f) = x(t) e -j2πft dt -∞-∞ Fourier s = σ + jω 0
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Transforms X(s) = x(t) e -st dt 0-0- ∞ Laplace s = σ + jω σ jω |X(s)| 3D plot
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Examples so far: n Found X(s) using the definition n X(s) for common x(t) u Table 13.1, page 672 n Given x(t) & known X(s)… How do certain common ECE operations effect X(s)? n Effect of common operations u Table 13.2, page 674
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