Question 31 : A nyquist pulse is the one which can be represented by _____ shaped pulse multiplied by another time function.
1. Sine
2. Cosine
3. Sinc
4. None of the mentioned
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Question 32 : The index value n, in transversal filter can be used as.
1. Time offset
2. Filter coefficient identifier
3. Time offset & Filter coefficient identifier
4. None of the mentioned
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Question 33 : According to the rule of minimizing the error probabilities, the hypothesis should be like if the priori probabilities are ________ than the ratio of likelihoods.
1. Lesser
2. Greater
3. Equal
4. None of the mentioned
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Question 34 : Which is the main system consideration?
1. Probability of error
2. System complexity
3. Random fading channel
4. All of the mentioned
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Question 35 : For a M-ary signal or symbol the number of likelihood functions are
1. M
2. M+1
3. M-1
4. 2M
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Question 36 : The non coherent FSK needs ________ Eb/N0 than coherent FSK.
1. 1db more
2. 1db less
3. 3db more
4. 3db less
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Question 37 : The filter which is used to recover the pulse with less ISI is called as
1. Matched filter
2. Correlator
3. Matched filter & Correlator
4. None of the mentioned
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Question 38 : Matched filter provides _____ signal to noise ratio.
1. Maximum
2. Minimum
3. Zero
4. Infinity
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Question 39 : If each pulse of the sequence to be detected is in _____ shape, the pulse can be detected without ISI.
1. Sine
2. Cosine
3. Sinc
4. None of the mentioned
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Question 40 : The range of amplitude difference gives the value of
1. Width
2. Distortion
3. Timing jitter
4. Noise margin
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