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If the quantization level of a demodulator output is ________ then it is called as soft decision decoding.

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If the quantization level of a demodulator output is ________ then it is called as soft decision decoding.

(a) Equal to 2

(b) More than 2

(c) Less than 2

(d) None of the mentioned

The question was posed to me in an online interview.

Question is taken from Convolution Encoding and Decoding topic in division Channel Coding of Digital Communications

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The correct choice is (b) More than 2

Explanation: If the quantization level of a demodulator output is 2 it is called as hard decision decoding and if it is greater than 2 it is called as soft decision decoding.

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