Electronics Receiver: Difference between revisions
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Electronics Receiver Explanation: |
Electronics Receiver Explanation: |
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When a Signal is transmitted they take the original baseband m(t) signal and send it through a bandpass processor that splits the signal into a real (x(t)) and an imaginary (y(t)) signal |
When a Signal is transmitted they take the original baseband m(t) signal and send it through a bandpass processor that splits the signal into a real (x(t)) and an imaginary (y(t)) parts and then shifts the signal to +/- a designated frequency as shown below. |
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[[Image:Comunications2.png]] |
[[Image:Comunications2.png]] |
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The purpose of your receiver is to retrieve this signal. This is done by first taking the transmitted signal and mixing it with cos(w_c*t)(to get x(t) and -sin(w_c*t) (to get y(t) also referred to as the quadrature signal) and filtering those two signals using a low pass filter. After you have those signals you can send them through a baseband processor (in the computer in this case) and it will process the signal and send the results to your speakers. |
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[[Image:Comunications.png]] |
[[Image:Comunications.png]] |
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Revision as of 07:09, 5 April 2010
Electronics Receiver Explanation:
When a Signal is transmitted they take the original baseband m(t) signal and send it through a bandpass processor that splits the signal into a real (x(t)) and an imaginary (y(t)) parts and then shifts the signal to +/- a designated frequency as shown below.
The purpose of your receiver is to retrieve this signal. This is done by first taking the transmitted signal and mixing it with cos(w_c*t)(to get x(t) and -sin(w_c*t) (to get y(t) also referred to as the quadrature signal) and filtering those two signals using a low pass filter. After you have those signals you can send them through a baseband processor (in the computer in this case) and it will process the signal and send the results to your speakers.
