Discussion :: Communication Systems
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In the output of a DM speech encoder, the consecutive pulses are of opposite polarity during time interval t1 < t < t2. This indicates that during this interval
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A.
the input to the modulator is essentially constant
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B.
the modulator is going through slope overload
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C.
the accumulator is in saturation
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D.
the speech signal is being sampled at the Nyquist rate
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Answer : Option A
Explanation :
In delta modulator, when consecutive pulses of polarity are opposite then signal is constant.
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