UGC NET CS 2015 June Paper-3
March 27, 2024UGC NET CS 2015 June Paper-3
March 27, 2024UGC NET CS 2015 June Paper-3
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Question 15
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The process of dividing an analog signal into a string of discrete outputs, each of constant amplitudes, is called:
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Strobing
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Amplification
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Conditioning
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Quantization
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Question 15 Explanation:
In analog to digital signal conversion following steps are performed:
1. Sampling: The analog signal is sampled every Ts seconds, where Ts is the sample interval or period. The result is a sequence of samples that retains the shape of the analog signal.
2. Quantization: The sampled signal is quantized. The result of sampling is a series of pulses with amplitude values between the maximum and minimum amplitudes of the signal. The set of amplitudes can be infinite with non-integral values between the
two limits.
So quantization is the process of mapping a large set of input values to a smaller(countable) set.
3. Encoding: After each sample is quantized and the number of bits per sample is decided. The quantized values are encoded as streams of bits.
1. Sampling: The analog signal is sampled every Ts seconds, where Ts is the sample interval or period. The result is a sequence of samples that retains the shape of the analog signal.
2. Quantization: The sampled signal is quantized. The result of sampling is a series of pulses with amplitude values between the maximum and minimum amplitudes of the signal. The set of amplitudes can be infinite with non-integral values between the
two limits.
So quantization is the process of mapping a large set of input values to a smaller(countable) set.
3. Encoding: After each sample is quantized and the number of bits per sample is decided. The quantized values are encoded as streams of bits.
Correct Answer: D
Question 15 Explanation:
In analog to digital signal conversion following steps are performed:
1. Sampling: The analog signal is sampled every Ts seconds, where Ts is the sample interval or period. The result is a sequence of samples that retains the shape of the analog signal.
2. Quantization: The sampled signal is quantized. The result of sampling is a series of pulses with amplitude values between the maximum and minimum amplitudes of the signal. The set of amplitudes can be infinite with non-integral values between the
two limits.
So quantization is the process of mapping a large set of input values to a smaller(countable) set.
3. Encoding: After each sample is quantized and the number of bits per sample is decided. The quantized values are encoded as streams of bits.
1. Sampling: The analog signal is sampled every Ts seconds, where Ts is the sample interval or period. The result is a sequence of samples that retains the shape of the analog signal.
2. Quantization: The sampled signal is quantized. The result of sampling is a series of pulses with amplitude values between the maximum and minimum amplitudes of the signal. The set of amplitudes can be infinite with non-integral values between the
two limits.
So quantization is the process of mapping a large set of input values to a smaller(countable) set.
3. Encoding: After each sample is quantized and the number of bits per sample is decided. The quantized values are encoded as streams of bits.