Examples of bounded signals are
sin(t), cos(t), u(t)
. All these three signals are bounded by an amplitude of value 1. ( The maximum possible value is 1). Signals, 5 sin(t), 5 cos(t), 5 u(t) similarly are bounded by a value of 5.
Which is bounded signal?
A continuous-time signal x(t) having finite value at any instant of time is said to be bounded signal i.e. if
x(t) < M
; where M is the finite value for all time t. The bounded signal example with M=1 shown in Figure 1. Figure 1: Bounded signal.
Which one of the following is an example of bounded signal?
Examples of bounded signals are
sin(t), cos(t), u(t)
. All these three signals are bounded by an amplitude of value 1. ( The maximum possible value is 1). Signals, 5 sin(t), 5 cos(t), 5 u(t) similarly are bounded by a value of 5.
Which of the following is true about the bounded signal?
Correct Option: B
A
signal having amplitude within finite boundaries
called bounded signal and it can have finite energy or infinite energy. If this signal is power signal, then it possess infinite energy. But in any case, this bounded signal will be finite for all the values of time.
Which one of the following system is a causal?
Which of the following system is causal? Explanation:
An LTI system
is said to be causal only when its output at any time depends on the previous or present value of the input.
What is a power signal?
A power signal
has infinite energy
and an energy signal has zero average power. Transient (finite duration) signals are energy signals while periodic signals are power signals.
What are the two types of Fourier series?
Explanation: The two types of Fourier series are-
Trigonometric and exponential
.
Is the signal sin t Antisymmetric?
9. Is the signal sin(t) anti-symmetric? ∴
Sin(t) is an anti-symmetric signal or an odd signal
. Explanation: A signal is called an energy signal if the energy satisfies 0<E< ∞ and power P=0.
What is an impulse signal?
In signal processing, the impulse response, or impulse response function (IRF), of a dynamic system is its output when presented with a brief input signal, called an impulse. More generally, an impulse response is
the reaction of any dynamic system in response to some external change
.
What is a finite signal?
A finite signal in time is
a signal whose domain is a subset [a,b] ⊂ Time, for some finite a and b
. For example, the signal g where for all t ∈ [0, 2π /ω
0
] ⊂ Time, g(t) = sin(ω
0
t) is a finite signal with duration 2π /ω
0
. A finite signal with duration p can be used to define a periodic signal with period p.
What is the use of random signal?
Signals can be divided into two main categories – deterministic and random. The term random signal is used primarily to
denote signals
, which have a random in its nature source. As an example we can mention the thermal noise, which is created by the random movement of electrons in an electric conductor.
What is the full form of the LTI system?
In system analysis, among other fields of study, a
linear time-invariant system
(LTI system) is a system that produces an output signal from any input signal subject to the constraints of linearity and time-invariance; these terms are briefly defined below.
What is stable system Sanfoundry?
Explanation: Stability of the system implies that
small changes in the system input, initial conditions
, and system parameters does not result in large change in system output. 2. A linear time invariant system is stable if : a) System in excited by the bounded input, the output is also bounded.
What are the advantages of LTI system?
Time-invariant systems are systems where the output does not depend on when an input was applied. These properties make LTI systems easy to represent and understand graphically. LTI systems are
superior to simple state machines for representation
because they have more memory.
Which one of the following is time invariant system?
1. Which system among the following is a time invariant system? Explanation: We know that, for any system y (n) = k x (n), to be a time invariant system, it must satisfy the relation,
y (n-n
1
) = k x (n-n
1
)
[where k is a constant or a function of n].
Which one is non causal system?
Non-Causal System is the system in which the present output not only depends on present inputs and the past inputs but also on future inputs is defined as Non-Causal system.In other words,Non Casual system is the
system which exists before the time, t=0
.
