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https://designers-guide.org/forum/YaBB.pl Simulators >> System Simulators >> QPSK simulations with upconversion. https://designers-guide.org/forum/YaBB.pl?num=1247957826 Message started by Francisco J on Jul 18th, 2009, 3:57pm |
Title: QPSK simulations with upconversion. Post by Francisco J on Jul 18th, 2009, 3:57pm Hi Everybody, I'm experimenting some problems using simulink, I'm not understanding how to implement up/down conversion, how to set the frequency carrier of the QPSK signal, and over all, how to show the PSD in passband. I'm using the freq. offset block (for simulate a Local Oscillator error), and everything is ok while `shifting my signal in the MHz domain. but when working in GHz I just can't see the signal. please, if there is someone who can explain me where is my mistake I will appreciate. I'd also, learn how to work with workspace variables in simulink, how to declare them in simulink and how use them. thank you in advance. Fran. |
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