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In digital modulation schemes, raised cosine filter is used to reduce __________ caused by _________.

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  1. inter-symbol interference, higher bandwidth
  2. intra-symbol interference, timing error
  3. intra-symbol interference, higher bandwidth
  4. inter-symbol interference, timing error

Answer (Detailed Solution Below)

Option 4 : inter-symbol interference, timing error
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In digital modulation schemes, raised cosine filter is used to reduce inter-symbol interference caused by timing error.

Additional Information

Inter-symbol Interference:

  • This is the effect of dispersion on optical fibre.
  • Intersymbol interference occurs when the pulse spreading caused by dispersion causes the output pulses of a system to overlap.

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Q1.Which of the following components is required to detect (demodulate) Pulse Position Modulation (PPM)? a) Pulse Generator b) RS Flip-Flop c) PWM Demodulator
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