Login

Remember

Register

Q&A
Unanswered
Tags
Categories
Ask a Question

Home
Signals and Systems
Find the value of 2sgn(0)d[0] + d[1] + d[45], where sgn(x) is the signum function.

Find the value of 2sgn(0)d[0] + d[1] + d[45], where sgn(x) is the signum function.

← Prev Question Next Question →

+1 vote

75 views

asked Sep 29, 2022 in Signals and Systems by Lucy (1.2m points)

Find the value of 2sgn(0)d[0] + d[1] + d[45], where sgn(x) is the signum function.

(a) 2

(b) -2

(c) 1

(d) 0

I got this question during a job interview.

My question is taken from The Impulse Function topic in chapter Signals and Systems Basics of Signals and Systems

signals and systems
signals and systems basics
the impulse function

Share it on

Facebook Twitter LinkedIn

Please log in or register to add a comment.

Please log in or register to answer this question.

1 Answer

0 votes

answered Oct 8, 2022 by leeyal (42.1k points)

The correct option is (d) 0

To explain I would say: sgn(0)=0, and d[n] = 0 for all n not equal to zero. Hence the sum reduces to zero.

Please log in or register to add a comment.

Related questions

+1 vote

1 answer

Where h*x denotes h convolved with x, find the value of d[n]*d[n-1].

asked Sep 29, 2022 in Signals and Systems by Lucy (1.2m points)

signals and systems
signals and systems basics
the impulse function

+1 vote

1 answer

Where h*x denotes h convolved with x, x[n]*d[n-90] reduces to

asked Sep 29, 2022 in Signals and Systems by Lucy (1.2m points)

signals and systems
signals and systems basics
the impulse function

+1 vote

1 answer

Multiplication of a signal with a Unit Impulse function gives the value of the signal at which the impulse is located.

asked Sep 29, 2022 in Signals and Systems by Lucy (1.2m points)

signals and systems
signals and systems basics
the impulse function

+1 vote

1 answer

How is the continuous time impulse function defined in terms of the step function?

asked Sep 30, 2022 in Signals and Systems by Lucy (1.2m points)

signals and systems
signals and systems basics
the impulse function

+1 vote

1 answer

The convolution of a discrete time system with a delta function gives

asked Sep 30, 2022 in Signals and Systems by Lucy (1.2m points)

signals and systems
signals and systems basics
the impulse function

+1 vote

1 answer

What is the other name of a Continuous Time Unit Impulse Function?

asked Sep 29, 2022 in Signals and Systems by Lucy (1.2m points)

signals and systems
signals and systems basics
the impulse function

+1 vote

1 answer

What is the area of a Unit Impulse function?

asked Sep 29, 2022 in Signals and Systems by Lucy (1.2m points)

signals and systems
signals and systems basics
the impulse function

+1 vote

1 answer

How is the discrete time impulse function defined in terms of the step function?

asked Sep 29, 2022 in Signals and Systems by Lucy (1.2m points)

signals and systems
signals and systems basics
the impulse function

+1 vote

1 answer

What is the area under a doublet function?

asked Sep 29, 2022 in Signals and Systems by Lucy (1.2m points)

signals and systems
signals and systems basics
the impulse function

+1 vote

1 answer

Impulse function is an odd function.

asked Sep 29, 2022 in Signals and Systems by Lucy (1.2m points)

signals and systems
signals and systems basics
the impulse function

Share it on

Facebook Twitter LinkedIn

Welcome to TalkJarvis QnA, a question-answer community website for the people by the people. On TalkJarvis QnA you can ask your doubts, curiosity, questions and whatever going in your mind either related to studies or others. Experts and people from different fields will answer.

Most popular tags

biology – class 12 biology – class 11 construction & building materials chemistry – class 12 electronic devices & circuits network theory data structures & algorithms ii cell biology ic engine insurance finance money computational fluid dynamics engineering physics i discrete mathematics chemistry – class 11 aerodynamics casting-forming-welding i engineering mathematics operating system casting-forming-welding ii engineering drawing mysql engineering geology digital circuits wireless mobile energy management electrical measurements digital communications cyber security analytical instrumentation embedded systems electric drives cytogenetics advanced machining computer fundamentals life sciences basic civil engineering iot design of electrical machines physics – class 12 applied chemistry dairy engineering basic chemical engineering cloud computing microprocessor bioinformatics aircraft design aircraft maintenance software engineering drug biotechnology digital signal processing biochemistry data structures & algorithms i automotive engine design avionics engineering material & metallurgy energy engineering cognitive radio unix electrical machines biomedical instrumentation object oriented programming electromagnetic theory power electronics analog communications bioprocess engineering civil engineering drawing engineering metrology physics – class 11 mathematics – class 12 engineering chemistry i basic electrical engineering unit processes mongodb signals and systems cryptograph & network security hadoop mathematics – class 11 engineering physics ii html control systems engineering mechanics antennas analog circuits computer network java sql server javascript concrete technology chemical process calculation artificial intelligence design of steel structures c++ database management computer architecture engineering chemistry ii corrosion engineering chemical technology dc machines

Send feedback
About Us
Copyright
Privacy Policy
Terms of Use
Contact Us

Powered by TalkJarvis

...