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Test: DFT Signal Analysis - Question 1

If the signal to be analyzed is an analog signal, we would pass it through an anti-aliasing filter with B as the bandwidth of the filtered signal and then the signal is sampled at a rate:

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Test: DFT Signal Analysis - Question 2

What is the highest frequency that is contained in the sampled signal?

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Test: DFT Signal Analysis - Question 3

The finite observation interval for the signal places a limit on the frequency resolution.

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Test: DFT Signal Analysis - Question 4

If {x(n)} is the signal to be analyzed, limiting the duration of the sequence to L samples, in the interval 0≤ n≤ L-1, is equivalent to multiplying {x(n)} by:

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Test: DFT Signal Analysis - Question 5

What is the Fourier transform of rectangular window of length L?

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Test: DFT Signal Analysis - Question 6

If x(n)=cosω_{0}n and W(ω) is the Fourier transform of the rectangular signal w(n), then what is the Fourier transform of the signal x(n).w(n)?

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Test: DFT Signal Analysis - Question 7

The characteristic of windowing the signal called “Leakage” is the power that is leaked out into the entire frequency range.

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Test: DFT Signal Analysis - Question 8

Which of the following is the advantage of Hanning window over rectangular window?

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Test: DFT Signal Analysis - Question 9

Which of the following is the disadvantage of Hanning window over rectangular window?

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Test: DFT Signal Analysis - Question 10

The condition with less number of samples L should be avoided.

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