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Introduction to signals and systems Flashcards | StudBud
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Introduction to signals and systems
Introduction to signals and systems
20 terms
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Tejal_module1_group no.1
Flashcards
20 cards
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Questions
20
Answers
1
What is the key characteristic of a power signal?
Random energy variations
Zero energy and power
Infinite energy and finite power
Finite energy and zero power
2
Which of the following is an elementary signal?
All of the above
Impulse
Sine wave
Ramp
3
Which system operates on a continuous-time signal?
Discrete-time system
Continuous-time system
Digital system
None of the above
4
Which system has memory?Which system has memory?
One that depends only on current input
One that has random outputs
One that depends on past and present inputs
One that depends only on future input
5
Which of the following is a periodic signal?
t³
Exponential Signal
Random Noise
sin(t)
6
Which of the following is an example of an even signal?
cos(t)
sin(t)
t³
e^t
7
What is the difference between analog and discrete signals?
Discrete signals are continuous, analog signals are not
Both are the same
Analog signals are continuous, discrete signals are not
None of the above
8
Which elementary signal represents a sudden jump from zero to one?
Ramp signal
Rectangular pulse
Sine wave
Step signal
9
What defines an energy signal?
Infinite energy and power
Finite total energy but zero average power
Constant power over time
A signal that never decays
10
Which type of signal repeats over time?
Periodic Signal
Deterministic Signal
Random Signal
Non-Periodic Signal
11
Which elementary signal is used to model sudden impulses in a system?
Impulse signal
Step signal
Ramp signal
Exponential signal
12
Which of the following is an example of an impulse signal?
Sint(t)
U(t)
r(t)
δ(t)
13
What is a system in signals and systems?
A single signal
A random process
A collection of signals
A set of mathematical operations on signals
14
Which of the following is an example of a non-causal system?
A system that only depends on past inputs
A system that depends on future inputs
A stable system
A system that operates in real-time
15
What is the definition of a signal in signals and systems?
A machine that transmits data
A function that conveys information
A device that generates waves
A system that processes data
16
What is the mathematical expression for a sine wave signal?
A e^(jt)
A cos(ωt)
A log(t)
A sin(ωt)
17
What is the shape of a ramp signal in a time-domain graph?
A sine curve
A rectangular pulse
A straight increasing line
A triangle
18
What is a causal system?
A system with random behavior
A system where output depends only on past and present inputs
A system that processes signals without delay
A system where output depends on future inputs
19
What is an odd signal?
A periodic signal
A signal that is asymmetric around the origin
A signal that is symmetric around the origin
A non-periodic signal
20
What is a deterministic signal?
A signal with random variations
A signal with zero amplitude
A signal that is always periodic
A signal that can be predicted at any time
