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Which method is called as differential encoding?(a) NRZ-L(b) NRZ-M(c) NRZ-S(d) None of the mentionedI got this question in an online quiz.The query is from Baseband Transmission topic in portion Formatting and Baseband Modulation of Digital Communications

Answer»

Right choice is (b) NRZ-M

For EXPLANATION: In NRZ-M, logic 1 is represented by a change in VOLTAGE level and logic 0 is represented by no change in level. This is called as differential encoding.



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