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If the step size of a system is 0.0721, find its quantization power?(a) 3.25 x 10^-3(b) 4.33 x 10^-4(c) 4.33 x 10^-2(d) 3.25 x 10^-1This question was addressed to me in an online quiz.This intriguing question originated from Comparison Between PM and AM in division Noise of Analog Communications

Answer»

The correct option is (b) 4.33 X 10^-4

Explanation: Quantization noise is a TYPE of quantization error generated by quantization due to ANALOG-to-digital conversion communication systems. It is an approximate error between the analog input voltage to the ADC and the output discritized value.

Therefore, Quantisation power = ∆^2/12, where ∆=0.0721

= (0.0721^2)/12 = 4.33 X 10^-4.


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