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Altera_Forum
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11 years ago

Inphase (I) and Quadrature (Q) components of signals

Hi All, How to calculate the Inphase (I) and Quadrature (Q) components of signals, such as RF signals? I would like to shift the RF signals to a specific baseband frequency and then derive the ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

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If you have no idea how to create a signal in MATLAB, just ask, and I'll create one for you. Give me an idea of what you need to sample, so that I can create a fake signal that looks similar.

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Hi Dave,

It would be great if you can create the Matlab code. I got both 2012 Simulink and matlab installed. We have a Cyclone III/Stratix Altera FPGA installed in a RF radar receiver. One of center frequencies of signals is 20 MHz with the bandwitdth 1MHz. The sampling frequency is 40MHz.

Many Thanks,

Lee