1) Search window of a RAKE receiver is
a. Frequency band of the channel
b. Range of the time delays
c. Range of noise
d. All of the above
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Answer
Explanation
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ANSWER: Range of the time delays
Explanation:
No explanation is available for this question!
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2) The RAKE receiver involves the steps
a. Correlator, estimation of transmitted signal, demodulation, bit decision
b. Estimation of transmitted signal, correlator, demodulation, bit decision
c. Estimation of transmitted signal, demodulation, correlator, bit decision
d. Estimation of transmitted signal, demodulation, bit decision, correlator
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Answer
Explanation
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ANSWER: Correlator, estimation of transmitted signal, demodulation, bit decision
Explanation:
No explanation is available for this question!
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3) RAKE receiver is
1. Several sub receivers
2. Several correlators
3. Fingers
4. Equalization based
a. 1 and 2 are correct
b. 1, 2 and 3 are correct
c. 2 and 3 are correct
d. All the four are correct
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Answer
Explanation
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ANSWER: 1, 2 and 3 are correct
Explanation:
No explanation is available for this question!
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4) In time diversity
a. Multiple versions of signals are transmitted at different time instants
b. The signal is transmitted using multiple channels
c. Signal is transmitted with different polarization
d. All of the above
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Answer
Explanation
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ANSWER: Multiple versions of signals are transmitted at different time instants
Explanation:
No explanation is available for this question!
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5) The diversity schemes are based on
1. Time diversity
2. Frequency diversity
3. Space diversity
4. Polarization diversity
a. 1 and 2 are correct
b. 1, 2 and 3 are correct
c. 2 and 3 are correct
d. All the four are correct
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Answer
Explanation
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ANSWER: All the four are correct
Explanation:
No explanation is available for this question!
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6) Diversity employs the decision making at
a. Transmitter
b. Receiver
c. Transmitter and receiver
d. Communication channel
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Answer
Explanation
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ANSWER: Receiver
Explanation:
No explanation is available for this question!
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7) Fractionally spaced equalizer acts as
a. Matched filter
b. Equalizer
c. Demodulator
d. Both a and b
e. All a, b and c are correct
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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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8) The algorithms acquired for adaptive equalization are
1. Zero forcing algorithm
2. Least mean squares algorithm
3. Recursive least squares algorithm
a. 1 and 2 are correct
b. 1, 2 and 3 are correct
c. 2 and 3 are correct
d. None of the above
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Answer
Explanation
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ANSWER: 1, 2 and 3 are correct
Explanation:
No explanation is available for this question!
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9) Computational complexity of an algorithm refers to the
a. Number of operations for one iteration of algorithm
b. Inaccuracies in the mathematical analysis
c. Noise produced during one complete iteration of algorithm
d. All of the above
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Answer
Explanation
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ANSWER: Number of operations for one iteration of algorithm
Explanation:
No explanation is available for this question!
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10) The performance of algorithms for Adaptive Equalization are given by
1. Rate of convergence
2. Computational complexity
3. Numerical properties
4. Frequency change
a. 1 and 2 are correct
b. 1, 2 and 3 are correct
c. 2 and 3 are correct
d. All are correct
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Answer
Explanation
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ANSWER: 1, 2 and 3 are correct
Explanation:
No explanation is available for this question!
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