complex envelope in simulink
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I have a simple model of two sines. I was expecting a spectrum (in complex enevelope) of just two carriers at my given frequencies. But I am seeing a double sided spectrum. Is this how simulink works for all signals? I am trying to create a C/3Im model, not sure how to interpret with both sides present inthe spectrum. Any thought illuminating this issue will be helpful.
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Dimitris Kalogiros
2019 年 9 月 6 日
編集済み: Dimitris Kalogiros
2019 年 9 月 6 日
Sum of two sine signals is a real signal. So, its spectrum is symetrical around zero.
A block diagram that produces a "complex signal" is the following:
Two sine waves with appropriate phase difference, in order to become a sine and a cosine
Their settings are shown at the following figure:
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