- Communication Systems - Section 1
- Communication Systems - Section 2
- Communication Systems - Section 3
- Communication Systems - Section 4
- Communication Systems - Section 5
- Communication Systems - Section 6
- Communication Systems - Section 7
- Communication Systems - Section 8
- Communication Systems - Section 9
- Communication Systems - Section 10
- Communication Systems - Section 11
- Communication Systems - Section 12
- Communication Systems - Section 13
- Communication Systems - Section 14
- Communication Systems - Section 15
- Communication Systems - Section 16
- Communication Systems - Section 17
- Communication Systems - Section 18
- Communication Systems - Section 19
- Communication Systems - Section 20
- Communication Systems - Section 21
- Communication Systems - Section 22
- Communication Systems - Section 23
- Communication Systems - Section 24
- Communication Systems - Section 25


Communication Systems - Engineering
Q1: 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 intervalA
the input to the modulator is essentially constant
B
the modulator is going through slope overload
C
the accumulator is in saturation
D
the speech signal is being sampled at the Nyquist rate
ANS:A - the input to the modulator is essentially constant In delta modulator, when consecutive pulses of polarity are opposite then signal is constant. |


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