Which of the following parameters are required to calculate the correlation between the signals x(n) and y(n)?
The cross correlation of two real finite energy sequences x(n) and y(n) is given as:
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What is the cross correlation sequence of the following sequences?
x(n)={….0,0,2,-1,3,7,1,2,-3,0,0….}
y(n)={….0,0,1,-1,2,-2,4,1,-2,5,0,0….}
Which of the following is the auto correlation of x(n)?
What is the relation between cross correlation and auto correlation?
The normalized auto correlation ρxx(l) is defined as:
Auto correlation sequence is an even function.
What is the auto correlation of the sequence x(n)=anu(n), 0<a<l?
If x(n) is the input signal of a system with impulse response h(n) and y(n) is the output signal, then the auto correlation of the signal y(n) is:
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3 videos|50 docs|54 tests
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