1) To obtain the transfer function of a convolutional code, the splitting of all-zero state takes place into ___
A. starting state
B. first return to all-zero state
C. in-between state
a. A & B
b. B & C
c. A & C
d. None of the above
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Answer
Explanation
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ANSWER: A & B
Explanation:
No explanation is available for this question!
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2) For a received sequence of 6 bits, which decoding mechanism deals with the selection of best correlated sequence especially by correlating the received sequence and all permissible sequences?
a. Soft Decision Decoding
b. Hard Decision Decoding
c. Both a and b
d. None of the above
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Answer
Explanation
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ANSWER: Soft Decision Decoding
Explanation:
No explanation is available for this question!
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3) Which decoding method involves the evaluation by means of Fano Algorithm?
a. Maximum Likelihood Decoding
b. Sequential Decoding
c. Both a and b
d. None of the above
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Answer
Explanation
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ANSWER: Sequential Decoding
Explanation:
No explanation is available for this question!
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4) For the 4 states of an encoder on vertical axis of Trellis diagram, what do/does the solid line indicate/s?
a. '0' input
b. '1' input
c. Both a and b
d. None of the above
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Answer
Explanation
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ANSWER: '0' input
Explanation:
No explanation is available for this question!
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5) In Trellis diagram, what do/does the horizontal axis represent/s?
a. Continuous time
b. Discrete time
c. Sampled time
d. All of the above
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Answer
Explanation
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ANSWER: Discrete time
Explanation:
No explanation is available for this question!
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6) In Viterbi's algorithm, the selected paths are regarded as __________
a. survivors
b. defenders
c. destroyers
d. carriers
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Answer
Explanation
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ANSWER: survivors
Explanation:
No explanation is available for this question!
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7) In Viterbi's algorithm, which metric is adopted for decision making?
a. Hamming distance
b. Galois Field
c. Hamming bound
d. Parity-check
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Answer
Explanation
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ANSWER: Hamming distance
Explanation:
No explanation is available for this question!
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8) During the shifting of bits in an encoder, how are the transitions in the states represented?
a. By lines
b. By circles
c. By summers
d. By squares
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Answer
Explanation
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ANSWER: By lines
Explanation:
No explanation is available for this question!
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9) While representing the convolutional code by (n,k,m), what does 'm' signify or represent in it?
a. Coded bits
b. Message bits
c. Memory order
d. All of the above
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Answer
Explanation
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ANSWER: Memory order
Explanation:
No explanation is available for this question!
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10) At any given time, the output of an encoder depends on ______
a. Past input
b. Present input
c. Both a and b
d. None of the above
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Answer
Explanation
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ANSWER: Both a and b
Explanation:
No explanation is available for this question!
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