Signals and Systems
1
GATE ECE 2025
MCQ (Single Correct Answer)
+1
-0.33
Consider the discrete-time system below with input $x[n]$ and output $y[n]$. In the figure, $h_1[n]$ and $h_2[n]$ denote the impulse responses of LTI Subsystems 1 and 2, respectively. Also, $\delta[n]$ is the unit impulse, and $b>0$.
Assuming $h_2[n] \neq \delta[n]$, the overall system (denoted by the dashed box) is_________.
2
GATE ECE 2024
MCQ (More than One Correct Answer)
+1
-0
For a causal discrete-time LTI system with transfer function
$H(z) = \frac{2z^2 + 3}{\left(z + \frac{1}{3}\right)\left(z - \frac{1}{3}\right)}$
which of the following statements is/are true?
3
GATE ECE 2023
MCQ (Single Correct Answer)
+1
-0.33
Consider a system with input $$x(t)$$ and output $$y(t) = x({e^t})$$. The system is
4
GATE ECE 2017 Set 2
MCQ (Single Correct Answer)
+1
-0.3
An LTI system with unit sample response
$$h\left( n \right) = 5\delta \left[ n \right] - 7\delta \left[ {n - 1} \right] + 7\delta \left[ {n - 3} \right] - 5\delta \left[ {n - 4} \right]$$ is a
$$h\left( n \right) = 5\delta \left[ n \right] - 7\delta \left[ {n - 1} \right] + 7\delta \left[ {n - 3} \right] - 5\delta \left[ {n - 4} \right]$$ is a
GATE ECE Subjects
Signals and Systems
Network Theory
Control Systems
Digital Circuits
General Aptitude
Electronic Devices and VLSI
Analog Circuits
Engineering Mathematics
Microprocessors
Communications
Electromagnetics