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In quantization process, the amount of quantization noise is _______________ to number of levels.(a) Directly proportional(b) Inversely proportional(c) Independent(d) None of the mentionedI have been asked this question in an internship interview.This interesting question is from Sources of Corruption topic in portion Formatting and Baseband Modulation of Digital Communications

Answer»

Correct answer is (b) Inversely proportional

Easy explanation: The distortion INTRODUCED to APPROXIMATE the analog signal is CALLED as quantization noise. The amount of this noise is inversely proportional to number of levels EMPLOYED in quantization process.



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