Recent content by emnaki
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What is the difference between complex and real signals in mobile communication?
Ah, I'm starting to get it. Alright let me clarify some points. So in the four distinct phase example you just gave, the phase difference between the strongest signals and the mean phase should not vary by more than roughly 45 degrees. So a frequency must be chosen that is not too high...- emnaki
- Post #7
- Forum: Electrical Engineering
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What is the difference between complex and real signals in mobile communication?
I already understood the last reply, but what I am puzzled is this: Assume the transmitter sends some I+jQ signal through the air. The signal is affected by heavy scattering as likely the case when in a place with a lot of obstacles like in a city. So as a result the receiver will receive at the...- emnaki
- Post #5
- Forum: Electrical Engineering
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What is the difference between complex and real signals in mobile communication?
Uh, I don't think I'm talking about the frequency domain. I'm talking about the complex signal space as commonly represented by I+jQ. I wish to know the difference between I and Q and what they are physically and how they seem to be transmitted without interfering with each other when signals...- emnaki
- Post #3
- Forum: Electrical Engineering
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What is the difference between complex and real signals in mobile communication?
I know what complex numbers are, but what actually is a complex signal as opposed to a real signal? I know a little Fourier Transform and in that context it is described as the difference between a cos wave and sin wave signals. But when I read about it in mobile communications it is described...- emnaki
- Thread
- Complex Signals
- Replies: 8
- Forum: Electrical Engineering