engineering recuitment GATE ECE 2023-24 Test Series Signals and Systems Discrete Time Signals and Systems Discrete Time LTI Systems
The output y[n] of a discrete-time system for an input x[n] is
\(y\left[ n \right] = \mathop {\max }\limits_{ - \infty \le k \le n} \left| {x\left[ k \right]} \right|\)
The unit impulse response of the system is1
0 for all n
2
1 for all n
3
unit step signal u[n]
4
unit impulse signal δ[n]