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What is the difference between Digital phase modulation(DPM) and Phase shift keying (PSK)? http://suraj.lums.edu.pk/zartash/publications/2007-DigitalPhaseMod.pdf It says that PSK is a special case of DP.

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Phase shift keying is linear modulation.

Digital phase modulation is not necessarily linear.

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  • $\begingroup$ Any chance to elaborate your answer? $\endgroup$
    – jojeck
    Commented May 17, 2017 at 11:13
  • $\begingroup$ I can elaborate depending on how clear the question is. Do you want the defition of linear modulation? $\endgroup$
    – AlexTP
    Commented May 17, 2017 at 11:15
  • $\begingroup$ It's mostly to make it a good quality answer. $\endgroup$
    – jojeck
    Commented May 17, 2017 at 11:18
  • $\begingroup$ Thanks for opinion, but I don't think a longer answer gives more information because I believe the difference is just that. And to talk more about these definitions, the OP's paper is very clear. I will leave my answer here for a while to see if the OP and other members think it is ok; otherwise I will delete it and make it a comment. $\endgroup$
    – AlexTP
    Commented May 17, 2017 at 11:27
  • $\begingroup$ Just curious, you downvoted because you think my answer needs to be detailed or you think it is simply totally wrong?? $\endgroup$
    – AlexTP
    Commented May 17, 2017 at 11:35

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