Digital Communication Questions and Answers
Q1.
Oversampling can completely eliminate
Answer :
Aperture error
Q2.
Sampling can be done for functions varying in
Answer :
Space & Time
Q3.
Which decoders are less complex?
Answer :
Hard decision decoder
Q4.
In a real time communication system addition of redundant bits leads to
Answer :
More bandwidth requirement & Faster rate of transmission
Q5.
Antipodal signals are
Answer :
1. Mirror images
2. 1800 apart
3. One is negative of the other
Q6.
The smaller the cross correlation, the ______ is the distance between the signal vectors.
Answer :
More
Q7.
Which code requires minimum Eb/N0?
Answer :
Simplex
Q8.
Every frequency has ____ orthogonal functions.
Answer :
Two
Q9.
Which is called as on-off keying?
Answer :
Amplitude shift keying & Uni-polar PAM
Q10.
For which quantization process is used?
Answer :
Amplitude discretization
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