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what is called analog envelope, and how to calculate this?

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W_Heisenberg

W_Heisenberg

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Say if we have x =[1 1]

how to get its analog envelope, in time and frequency domain?


Thanks in advance.
 

In digital domain, there is no envelope concept. The vector as binary stream was no meaning of analog voltage. It can be anything before you define the analog information.
Some important things related to analog, is Digital-Analog Converter 's sampling clock, Scale (or mapping of bit). After the DAC,the envelope appeared as multiply baseband sign bit with exp^(j*2*pi*fs). When you have frequency converter after DAC,it will multiply a carrier as f0, but the envelop did not changed if everything is perfect linearity.
 

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i asked prof again, he said there is a unique Analog Envelope for a Digital Signal.

not sure how he knows this, but this is conclusion...
 

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