question archive Twenty - four voice signals are sampled uniformly and then time - division multiplexed
Twenty - four voice signals are sampled uniformly and then time - division multiplexed
Subject:CommunicationsPrice: Bought3
Twenty
-
four voice signals are sampled uniformly and then time
-
division multiplexed. The sampling
operation uses flat
-
top samples with 1 μs duration. The multiplexing operation includes provision for
synchroni
zation by adding an extra pulse of sufficient amplitude and also 1 μs duration. The highest
frequency component of each voice signal is 3.4 kHz.
(a) Assuming a sampling rate of 8 kHz, calculate the spacing between successive pulses of the
multiplexed
signal.
(
Spacing between successive pulses=
4 microseconds)
(b) Repeat your calculation assuming the use of Nyquist rate sampling
