go_editor
asked
in Continuous-time Signals
Feb 13, 2020
recategorized
Nov 15, 2020
by soujanyareddy13

126 views
0 votes

The output $y[n]$ of a discrete-time system for an input $x[n]$ is

$$y\left [ n \right ]=\underset{-\infty \leq k\leq n}{\text{max}} \mid x\left [ k \right ] \mid$$

The unit impulse response of the system is

- $0$ for all $n$.
- $1$ for all $n$.
- unit step signal $u\left [ n \right ].$
- unit impulse signal $\delta \left [ n \right ].$