Revision as of 20:19, 4 September 2008 by Longja (Talk)

Power and Energy Problem

$ x(t) = 3\cos(4t + \frac{\pi}{3}) $

$ P_\infty = \lim_{T \to \infty} (\frac{1}{2T} \int_{-T}^T |3\cos(4t + \frac{\pi}{3})|^2\,dt) $


$ E_\infty = \int_{-\infty}^\infty |3\cos(4t + \frac{\pi}{3})|^2\,dt $


  • Bonus Problem!

$ x(t) = e^{j(\pi t-1)} $

$ P_\infty $


$ E_\infty $

Alumni Liaison

Ph.D. 2007, working on developing cool imaging technologies for digital cameras, camera phones, and video surveillance cameras.

Buyue Zhang