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GATE EE

Continuous and Discrete Time Signals

Signals and Systems

Previous Years Questions

Marks 1

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Let $$z\left(t\right)=x\left(t\right)\ast y\left(t\right)$$, where "*" denotes convolution. Let C be a positive real-val...
GATE EE 2017 Set 1
Consider the system with following input-output relation $$y\left[n\right]=\left(1+\left(-1\right)^n\right)x\left[n\righ...
GATE EE 2017 Set 1
The value of $$\int_{-\infty}^{+\infty}e^{-t}\partial\left(2t-2\right)dt$$. where $$\partial\left(t\right)$$ is the Dira...
GATE EE 2016 Set 1
A moving average function is given by $$y\left(t\right)=\frac1T\int_{t-T}^tu\left(\tau\right)d\tau$$. If the input u is ...
GATE EE 2015 Set 1
For a periodic signal the $$v\left(t\right)=30\sin100t\;+\;10\cos300t\;+\;6\sin\left(500t\;+\;\frac{\mathrm\pi}4\right)...
GATE EE 2013
A point Z has been plotted in the complex plane, as shown in figure below. The plot of the complex number $$y=\frac1z$...
GATE EE 2011
The convolution of the function $$f_1\left(t\right)=e^{-2t}\;u\left(t\right)$$ and $$f_2\left(t\right)=e^t\;u\left(t\rig...
GATE EE 1995
The value of the integral $$\int_{-5}^{+6}e^{-2t}\delta\left(t-1\right)dt$$ is equal to ________.
GATE EE 1994

Marks 2

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The function shown in the figure can be represented as ...
GATE EE 2014 Set 1
If u(t), r(t) denote the unit step and unit ramp functions respectively and u(t)*r(t) their convolution, then the functi...
GATE EE 2007

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