Question No. 4 (5*3 marks] A television signal (videe and audio) has a bandwidth of 4.5 MHz. This signal is sampled, quantized, and binary coded to obtain a Pulse code modulation (PCM) signal. 4.5x2 =9 1.2x9= 1o 8 MA a) Determine the sampling rate if the signal is to be sampled at a rate 20% above the Nyquist rate. b) If the samples are quantized into 1024 levels, determine the number of binary pulses required to encode each sample. c) Determine the binary pulse rate (bits per second) of the binary coded signal, and the minimum bandwidth required to transmit this signal. 1024 ho hits 108M 10-8xl06 .6., to fo8 Mb/s