Digital Communication Questions and Answers
Q1.
Matched filter can also be used as least squares estimator.
Answer :
True
Q2.
What is necessary for digital communication?
Answer :
1. Precision timing
2. Frame synchronization
3. Character synchronization
Q3.
The attenuation level in bounded power spectral density is
Answer :
35 & 50
Q4.
Capacity of a channel can be increased by
Answer :
Increasing channel bandwidth &signal power
Q5.
The maximum likelihood function is
Answer :
Positive
Q6.
Which offers better SQNR?
Answer :
PCM
Q7.
Shot noise is
Answer :
Poisson process
Q8.
Formatting is the process which includes
Answer :
1. Pulse code modulation
2. Sampling
3. Quantization
Q9.
Find the 32-ary waveform for the word ‘THINK’.
Answer :
514172520
Q10.
The ratio of the filter bandwidth at -60db and -6db amplitude response point is called as ___
Answer :
Shape factor
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