Assesment on unit-1 & 2
Quiz
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Professional Development
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Professional Development
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Hard
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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