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To achieve high signal to noise ratio, delta modulation must use

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To achieve high signal to noise ratio, delta modulation must use

(a) Under sampling

(b) Over sampling

(c) Aliasing

(d) None of the mentioned

I got this question in final exam.

This interesting question is from Modulation and Multiplexing topic in portion Modulation and Coding Trade-off of Digital Communications

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Best answer
Correct option is (b) Over sampling

Easiest explanation: To achieve high signal to noise ratio, delta modulation must use over sampling techniques.

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