Fourier analysis helps us to determine how much bandwidth a particular signal occupies. - Avionics MCQ

Aeronautical & Aerospace Engineering : Avionics - Quiz(MCQ)

Fourier analysis helps us to determine how much bandwidth a particular signal occupies.

A)

True

B)

False

C)

Can Not Say

D)

None of the above

Correct Answer : True

Explanation : Fourier analysis allows us to determine not only the sine wave components in any complex signal but also how much bandwidth a particular signal occupies. Although a sine or cosine wave at a single frequency theoretically occupies no bandwidth, complex signals obviously take up more spectrum space.

Recently Updated in Avionics Questions

What is the peak value of 5th harmonic if the square wave has a peak voltage of 3v and a frequency of 48Khz?

A)

0.52

B)

0.74

C)

0.76

D)

1.5

Correct Answer : Option (C) : 0.76

Explanation : avionics

Which instrument produces frequency domain information?

A)

Oscilloscope

B)

Beam analyzer

C)

Frequency divider

D)

Spectrum analyzer

Correct Answer : Option (D) : Spectrum analyzer

Explanation : The test instrument for producing a frequency-domain display is the spectrum analyzer. Like the oscilloscope, the spectrum analyzer uses a cathode-ray tube for display, but the horizontal sweep axis is calibrated in hertz and the vertical axis is calibrated in volts or power units or decibels.

A pulse train has a rise time of 6 ns. What is the minimum bandwidth to pass this pulse train faithfully?

A)

41.5MHz

B)

42.6MHz

C)

58.3MHz

D)

812MHz

Correct Answer : Option (C) : 58.3MHz

Explanation :

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