engineering recuitment BHEL Engineer Trainee Mock Test 2025 Communication Systems Pulse Modulation Pulse Analog Modulation
A speech signal is sampled a rate of 20% above the Nyquist rate. The signal has a bandwidth of 10 kHz. The sample is quantized into 1024 levels and then transmitted through 8-level PAM over an AWGN baseband channel. The bandwidth required for transmission is ______
1
80 kHz
2
44 kHz
3
40 kHz
4
34 kHz