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Recent questions in Digital Signal Processing
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1
TIFR System Science 2018 Question 1
Consider a discrete-time system which in response to input sequence x[n] (n integer) outputs the sequence y[n] such that $y[n] = 0, n = −1, −2, −3,...$ and $y[n]=2 (y[n − 1] + nx[n]), n = 0, 1, 2,...$. Find out if the system is linear and time-invariant.
analyse
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in
Digital Signal Processing
Nov 22, 2022
by
analyse
249
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discrete
1
vote
1
answer
2
NIELIT 2022 April Scientist B | Section B | Question: 47
In a baseband communication link, frequencies upto $3500 \; \text{Hz}$ are used for signaling. Using a raised cosine pulse with $75 \%$ excess bandwidth and for no inter symbol interference, the maximum possible signaling rate is symbols $\text{per sec}$ is: $1750$ $2625$ $4000$ $5250$
soujanyareddy13
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Digital Signal Processing
Apr 12, 2022
by
soujanyareddy13
1.1k
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nielit2022apr-scientistb
non-gate
1
vote
1
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3
NIELIT Scientific Assistant A 2020 November: 60
Term in the $\text{MVC}$ architecture that receives events is called _________. Receiver Controller Transmitter Modulator
gatecse
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in
Digital Signal Processing
Dec 9, 2020
by
gatecse
362
views
nielit-sta-2020
digital-signal-processing
0
votes
0
answers
4
NIELIT 2017 OCT Scientific Assistant A (IT) - Section D: 1
Twelve $1\;\Omega$ resistances are used as edges to from a cube. The resistance between two diagonally opposite corners of the cube is $\frac{5}{6}\;\Omega$ $\frac{1}{6}\;\Omega$ $\frac{6}{5}\;\Omega$ $\frac{3}{2}\;\Omega$
closed
admin
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in
Digital Signal Processing
Aug 28, 2020
by
admin
384
views
nielit2017oct-assistanta-it
non-gate
0
votes
0
answers
5
NIELIT 2017 OCT Scientific Assistant A (IT) - Section D: 11
In MOSFET fabrication, the channel; length is defined during the process of Isolation oxide growth Channel stop implantation Poly-silicon gate patterning Lithography step leading to the contact pad
closed
admin
asked
in
Digital Signal Processing
Aug 28, 2020
by
admin
381
views
nielit2017oct-assistanta-it
non-gate
0
votes
0
answers
6
NIELIT 2017 OCT Scientific Assistant A (CS) - Section D: 1
Twelve $1\;\Omega$ resistances are used as edges to from a cube. The resistance between two diagonally opposite corners of the cube is $\frac{5}{6}\;\Omega$ $\frac{1}{6}\;\Omega$ $\frac{6}{5}\;\Omega$ $\frac{3}{2}\;\Omega$
admin
asked
in
Digital Signal Processing
Aug 28, 2020
by
admin
375
views
nielit2017oct-assistanta-cs
non-gate
0
votes
1
answer
7
NIELIT 2017 OCT Scientific Assistant A (CS) - Section D: 2
An ideal op-amp is an ideal voltage controlled current source voltage controlled voltage source current controlled current source current controlled voltage source
admin
asked
in
Digital Signal Processing
Aug 28, 2020
by
admin
487
views
nielit2017oct-assistanta-cs
non-gate
0
votes
0
answers
8
NIELIT 2017 OCT Scientific Assistant A (CS) - Section D: 3
The final value theorem is used to find the Steady state value of the system output Initial value of the system output Transient behavior of the system output None of these
admin
asked
in
Digital Signal Processing
Aug 28, 2020
by
admin
350
views
nielit2017oct-assistanta-cs
non-gate
0
votes
0
answers
9
NIELIT 2017 OCT Scientific Assistant A (CS) - Section D: 4
For the discrete signal $x[n] = a^{n}u[n],a>0$ the $z$-transform is $\frac{(z+a)}{z}$ $\frac{(z-a)}{z}$ $\frac{z}{(z-a)}$ $\frac{z}{(z+a)}$
admin
asked
in
Digital Signal Processing
Aug 28, 2020
by
admin
323
views
nielit2017oct-assistanta-cs
non-gate
0
votes
0
answers
10
NIELIT 2017 OCT Scientific Assistant A (CS) - Section D: 5
For a periodic signal $v(t) = 30\sin 100t + 10\cos 300t + 6\sin(500t + \frac{\pi}{4}),$ the fundamental frequency in rad/s $100$ $300$ $500$ None of these
admin
asked
in
Digital Signal Processing
Aug 28, 2020
by
admin
458
views
nielit2017oct-assistanta-cs
non-gate
0
votes
0
answers
11
NIELIT 2017 OCT Scientific Assistant A (CS) - Section D: 7
If the number of bits per sample in a PCM system is increased from a $n$ to $n+1,$ the improvement in signal to quantization nose ratio will be $3\;dB$ $6\;dB$ $2n\;dB$ $n\;dB$
admin
asked
in
Digital Signal Processing
Aug 28, 2020
by
admin
335
views
nielit2017oct-assistanta-cs
non-gate
0
votes
1
answer
12
NIELIT 2017 OCT Scientific Assistant A (CS) - Section D: 8
A carrier $Ac\cos(\omega c)t$ is frequency modulated by a signal $Em\cos(\omega m)t.$ The modulation index is $mf.$ The expression for the resulting FM signal is $Ac\cos [\omega ct + mf\sin(\omega m)t]$ ... $Ac\cos [\omega ct + 2\pi mf Em \cos(\omega m)t/\omega m]$
admin
asked
in
Digital Signal Processing
Aug 28, 2020
by
admin
382
views
nielit2017oct-assistanta-cs
non-gate
0
votes
0
answers
13
NIELIT 2017 OCT Scientific Assistant A (CS) - Section D: 11
In MOSFET fabrication, the channel; length is defined during the process of Isolation oxide growth Channel stop implantation Poly-silicon gate patterning Lithography step leading to the contact pad
admin
asked
in
Digital Signal Processing
Aug 28, 2020
by
admin
291
views
nielit2017oct-assistanta-cs
non-gate
0
votes
0
answers
14
NIELIT 2017 OCT Scientific Assistant A (CS) - Section D: 12
The open-loop transfer function of a feedback control system is $G(s)\cdot H(s) = 1/(s+1)^{3}.$ The gain margin of the system is $2$ $4$ $8$ $16$
admin
asked
in
Digital Signal Processing
Aug 28, 2020
by
admin
334
views
nielit2017oct-assistanta-cs
non-gate
0
votes
0
answers
15
NIELIT 2016 MAR Scientist C - Section C: 42
A stable multivibrator are used as comparator circuit squaring circuit frequency to voltage converter voltage to frequency converter
admin
asked
in
Digital Signal Processing
Apr 2, 2020
by
admin
330
views
nielit2016mar-scientistc
non-gate
0
votes
0
answers
16
NIELIT 2016 MAR Scientist C - Section C: 43
The astable multivibrator has two quasi stable states two stable states one stable and one quasi-stable state none of these
admin
asked
in
Digital Signal Processing
Apr 2, 2020
by
admin
228
views
nielit2016mar-scientistc
non-gate
0
votes
1
answer
17
NIELIT 2016 MAR Scientist C - Section C: 48
In a microprocessor, WAIT states are used to make the processor wait during a DMA operation make the processor wait during a power interrupt processing make the processor wait during a power shutdown interface slow peripherals to the processor
admin
asked
in
Digital Signal Processing
Apr 2, 2020
by
admin
593
views
nielit2016mar-scientistc
non-gate
microprocessors
0
votes
2
answers
18
NIELIT 2016 MAR Scientist C - Section C: 61
Microprogramming is a technique for writing small programs effectively programming output/input routines programming the microprocessors programming the control steps of a computer
admin
asked
in
Digital Signal Processing
Apr 2, 2020
by
admin
925
views
nielit2016mar-scientistc
co-and-architecture
microprogramming
0
votes
0
answers
19
NIELIT 2017 OCT Scientific Assistant A (CS) - Section B: 27
At $100\%$ modulation, the power in each sideband is _______ of that of carrier. $50\%$ $40\%$ $60\%$ $25\%$
admin
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in
Digital Signal Processing
Apr 1, 2020
by
admin
343
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nielit2017oct-assistanta-cs
non-gate
0
votes
3
answers
20
NIELIT 2017 DEC Scientific Assistant A - Section B: 8
Microprocessors are used in which generation of computers? I – st Generation II – nd Generation III – rd Generation IV – th Generation
admin
asked
in
Digital Signal Processing
Mar 31, 2020
by
admin
846
views
nielit2017dec-assistanta
non-gate
microprocessors
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