Assesment on unit-1 & 2

Assesment on unit-1 & 2

Professional Development

15 Qs

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Assesment on unit-1 & 2

Assesment on unit-1 & 2

Assessment

Quiz

Professional Development

Professional Development

Hard

Created by

nalini pusarla

Used 3+ times

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15 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If x1(n) and x2(n) are two real valued sequences of length N, and let x(n) be a complex valued sequence defined as x(n)=x1(n)+jx2(n), 0≤n≤N-1, then what is the value of x1(n)?

[x(n)-x*(n)]/2

[x(n)+x*(n)]/2

[x(n)+x*(n)]/2j

[x(n)-x*(n)]/2j

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If x1(n) and x2(n) are two real valued sequences of length N, and let x(n) be a complex valued sequence defined as x(n)=x1(n)+jx2(n), 0≤ n≤ N-1, then what is the value of x2(n)?

[x(n)+x*(n)]/2

[x(n)-x*(n)]/2

[x(n)+x*(n)]/2j

[x(n)-x*(n)]/2j

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many complex multiplications are need to be performed for each FFT algorithm?

N/2 log N

Nlog2N

NlogN

N/2 log2N

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many complex additions are required to be performed in linear filtering of a sequence using FFT algorithm?

N/2 log N

2Nlog2N

NlogN

N/2 log2N

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the system is initially relaxed at time n=0 and memory equals to zero, then the response of such state is called as

Zero-state response

Zero-input response

Zero-condition response

None of the mentioned

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The total solution of the difference equation is given as

yp(n)-yh(n)

yp(n)+yh(n)

yh(n)-yp(n)

None of the mentioned

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the impulse response of the system described by the second order difference equation y(n)-3y(n-1)-4y(n-2)=x(n)+2x(n-1)?

[-1/5 (-1)n–6/5 (4)n]u(n)

[1/5 (-1)n–6/5 (4)n]u(n)

[1/5 (-1)n+6/5 (4)n]u(n)

[-1/5 (-1)n+6/5 (4)n]u(n)

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