1. Consider a compact disc that uses pulse-code modulation to record audio signals whose bandwidth W = 15 kHz Specifications of the modulator include the following: Quantization: uniform with 512 levels Encoding: binary Determine (a) the Nyquist rate, and (b) the minimum permissible bit rate.

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  1. Consider a compact disc that uses pulse-code modulation to record audio signals whose  bandwidth W = 15 kHz Specifications of the modulator include the following: 

Quantization: uniform with 512 levels

Encoding: binary 

 Determine (a) the Nyquist rate, and (b) the minimum permissible bit rate.

1. Consider a compact disc that uses pulse-code modulation to record audio signals whose
bandwidth W = 15 kHz Specifications of the modulator include the following:
Quantization: uniform with 512 levels
Encoding: binary
Determine (a) the Nyquist rate, and (b) the minimum permissible bit rate.
2. This problem addresses the digitization of a television signal using pulse-code
modulation. The signal bandwidth is 4.5 MHz. Specifications of the modulator include
the following:
Sampling: 15% in excess of the Nyquist rate
Quantization: uniform with 1024 levels
Encoding: binary
Determine (a) the Nyquist rate, and (b) the minimum permissible bit rate.
3. Figure shows a PCM signal in which the amplitude levels of volt and volt are used
to represent binary symbols 1 and 0, respectively. The code word used consists of three
bits. Find the sampled version of an analog signal from which this PCM signal is derived.
+1
AN
Transcribed Image Text:1. Consider a compact disc that uses pulse-code modulation to record audio signals whose bandwidth W = 15 kHz Specifications of the modulator include the following: Quantization: uniform with 512 levels Encoding: binary Determine (a) the Nyquist rate, and (b) the minimum permissible bit rate. 2. This problem addresses the digitization of a television signal using pulse-code modulation. The signal bandwidth is 4.5 MHz. Specifications of the modulator include the following: Sampling: 15% in excess of the Nyquist rate Quantization: uniform with 1024 levels Encoding: binary Determine (a) the Nyquist rate, and (b) the minimum permissible bit rate. 3. Figure shows a PCM signal in which the amplitude levels of volt and volt are used to represent binary symbols 1 and 0, respectively. The code word used consists of three bits. Find the sampled version of an analog signal from which this PCM signal is derived. +1 AN
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Digital Modulation Scheme (Amplitude-Shift Keying [ASK], Phase-Shift Keying [PSK], Frequency-Shift Keying [FSK])
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