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Introduction:

There is one way to study different modulations in band pass digital systems and is working with "signal space" and the Constellation Diagram.

My questions about this are:

1) Is it possible to apply it for band base systems?

and if it's possible...

2) How could i apply this to study band base digital systems?

Thanks for the interest in this question

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    $\begingroup$ yes and read chapter 2 of this ocw.mit.edu/courses/electrical-engineering-and-computer-science/… $\endgroup$ – AlexTP Jun 16 '18 at 17:48
  • $\begingroup$ I really appreciate that but i have an exam on Monday. Is not being lazy but i do not have time to read everything. I just want a simple example to solidify some knowledge. $\endgroup$ – WhiteGlove Jun 16 '18 at 18:55
  • $\begingroup$ What i found out is this: To summarize, the key parameters of a band-limited continuous-time AWGN channel are its bandwidth W in Hz and its signal-to-noise ratio SNR, regardless of other details like where the bandwidth is located (in particular whether it is at baseband or passband), $\endgroup$ – WhiteGlove Jun 16 '18 at 18:58
  • $\begingroup$ It depends on how you define "key parameters". It is the same thing as what do you means in "studying baseband signal". You should as more specific questions. $\endgroup$ – AlexTP Jun 16 '18 at 20:58
  • $\begingroup$ Studying -> Analyze. We use the signal space theory to simplify and analyze different modulations (QPSK, BPSK, etc) and compare them. I am asking, if that could be applied for band base systems and a simple example in how to. I'm not asking for a full class but a simple explanation. $\endgroup$ – WhiteGlove Jun 17 '18 at 7:35

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