### Questions (12)

 2 $\lim \limits_{a \to 0} \frac{1}{a}[u(\frac{t}{a}+\frac{1}{2})-u(\frac{t}{a}-\frac{1}{2})]= \delta(t)$ 1 How to find the phase spectrum of a rectangular pulse? (Fourier Transform) 1 What Is the Derivative of the Function $s \left( t \right) = \left( 1 - {e}^{\frac{-t}{RC}} \right) u \left( t \right)$? 1 Finding Z transform of a signal: Intermediate steps 1 Mathematics in selection of RC time constant for an envelope detector for AM

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 2 Expression to represent alternating pulse train?

### Tags (12)

 2 homework × 3 0 modulation × 2 2 fourier-transform × 3 0 linear-systems × 2 2 sampling 0 impulse-response 0 signal-analysis × 4 0 z-transform 0 demodulation × 2 0 continuous-signals

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