Question
Download Solution PDFThe distortion in pulse modulation scheme resulting in _________, is corrected by _________.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFSolution
Aperture Effect
- During Flat top sampling, Sinc pulses are used to convert varying amplitudes of pulses to flat top pulses
- As a result, there is a decrease in the amplitude of the modulated signal
- This distortion in pulse modulated signal is known as the aperture effect
- This distortion is corrected by connecting an equalizer in cascade with a low pass reconstruction filter
- The equalizer has the ability to decrease the in-band loss of reconstruction filters as the frequency increases in order to compensate for the aperture effect
The distortion in the pulse modulation scheme results in aperture effect , is corrected by equalizer
Therefore the correct answer is option 1
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