A signal has a single-sided bandwidth of W = 15 kHz. If this signal is sampled a

Question

A signal has a single-sided bandwidth of W = 15 kHz. If this signal is sampled at the Nyquist rate (fs = 2W samples/sec ) and is PCM encoded with 3 bits. What is the minimum required bandwidth needed for a channel to transmit this new signal?

A signal has a single-sided bandwidth of w- 15 kHz. If this signal is sampled at the Nyquist rate (fs 2W samples/sec) and is PCM encoded with 3 bits. What is the minimum required bandwidth needed for a channel to transmit this new signal? 8-15 kHz B= 75 kHz 0 B=225 kHz B= 15 kHz o B 60 kHz B-60 KHz 0 B= 45 kHz 8-45 kHz

Explanation / Answer

Bandwidth W=15Khz;

Nyquist Rate sampling freq Fs=2W=30Khz;

Bit Rate r=N.Fs=3*30Khz=90KBits/sec

Minmum bandwidth=Bitrate/2=90K/2=45KHz

Ans B=45Khz

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