LTI System

$ y(t)=2x(t)+x(t+2) $

Unit Impulse and System Function

The unit impulse is the systems response to an input of the function $ \delta(t) $.

$ x(t)=\delta(t) $

$ h(t)=2\delta(t)+\delta(t+2) $ is the Unit Unit Impulse Response.

$ H(s)=\int_{-\infty}^\infty h(\tau)e^{-j\omega\tau}d\tau $ is the equation used to find the system response.

$ H(s)=\int_{-\infty}^\infty (2\delta(t)+\delta(t+2))e^{-j\omega\tau}d\tau $


$ H(s)=2+e^{2j\omega} $

Response to a Signal

My signal in Part 1 was: $ x(t)=sin(\pi t) + cos(2\pi t) $

$ x(t)=sin(\pi t) + cos(2\pi t) = \frac{1}{j}e^{-j}+e^{j}+ \frac{1}{2}e^{2j}+ \frac{1}{2}e^{-2j} $

Alumni Liaison

Basic linear algebra uncovers and clarifies very important geometry and algebra.

Dr. Paul Garrett