Consider the waveform f(t) in Figure.
(a) Write a mathematical expression for f (t)
(b) Find the Laplace transform for this waveform, using Tables.
F(s) | ROC | |
1. δ (t) | 1 | All s |
2. u (t) | Re(s) > 0 | |
3. t | Re(s) > 0 | |
4. tn | Re(s) > –a | |
5. e-at | Re(s) > –a | |
6. te-at | Re(s) > –a | |
7. tn e-at | Re(s) > 0 | |
8. sin bt | Re(s) > 0 | |
9. cos bt | Re(s) > –a | |
10. e-at sin bt | Re(s) > –a | |
11. e-at cos bt | Re(s) > 0 | |
12. t sin bt | Re(s) > 0 | |
13. t cos bt |
|
Name | Property |
1. Linearity, (7.10) | |
2. Derivative, (7.15) | |
3. n th-order derivative, (7.29) | |
4. Integral, (7.31) | |
5. Real shifting, (7.22) | |
6. Complex shifting, (7.20) | |
7. Initial value, (7.36) | |
8. Final value, (7.39) | |
9. Multiplication by t, (7.34) | |
10. Time transformation, | |
11. Convolution | |
12. Time periodicity |
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