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Find the number of pulses, if the number of quantization levels is 32 in PCM?

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Find the number of pulses, if the number of quantization levels is 32 in PCM?

(a) 3

(b) 6

(c) 4

(d) 5

This question was addressed to me in an international level competition.

Question is taken from Methods of Reducing Distortion in section Amplitude Modulation of Analog Communications

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The correct option is (d) 5

Explanation: Quantization is a process in which the continuous range of values of an analog signal is sampled and divided into non-overlapping (but not necessarily equal) subranges, and a discrete, unique value is assigned to each sub-range.

Therefore, number of pulse in quantisation level =  2^n = 32, so n = 5, where n = Quantization Level.

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