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Quantization noise occurs in ________

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Quantization noise occurs in ________

(a) Frequency Division Multiplexing

(b) Time Division Multiplexing

(c) Delta Modulation

(d) Amplitude Modulation

The question was asked by my college director while I was bunking the class.

The above asked question is from Modulation of VSB Modulated Wave in portion VSB Modulation of Analog Communications

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Right choice is (d) Amplitude Modulation

The explanation is: Quantisation is the process through which a range of continuous analog values are quantized or rounded off to a single value, thereby forming samples of a discrete digital signal. Quantisation Error occurs when there is a difference between an input value and it’s quantized value. Quantisation occurs when an analog signal is converted into it’s digital form, thus it occurs in Pulse Code modulation (PCM).

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