Electronics and Communication Engineering - Exam Questions Papers - Discussion
Discussion Forum : Exam Questions Papers - Exam Paper 3 (Q.No. 33)
33.
Four signals
m1 = cos (ω0t), m2(t) =
cos (ω0t), m3(t) = 2 cos (ω0t) and m4(t) = cos (4 ω0t) are multiplexed by Time Division Multiplexing system. The commutator speed in rps is
m1 = cos (ω0t), m2(t) =
cos (ω0t), m3(t) = 2 cos (ω0t) and m4(t) = cos (4 ω0t) are multiplexed by Time Division Multiplexing system. The commutator speed in rps isAnswer: Option
Explanation:
Apply Nyquist criteria.
Maximum angular speed is 4ω0
Thus commutator speed must be 2 x 4ω2 = 8ω0 .
Discussion:
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