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Altera_Forum
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14 years ago

Unwanted frequency shift in DA-converted signal

Hi, i use Matlab/Simulink and DSP Builder for my project. In Matlab, I generate a digital source signal and program it in a LUT-Block in Simulink. This Block then sends the data to my DACs...
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Altera_Forum
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14 years ago

Thats not exactly what I need. I need a signal which is overlayed of different other signals. As in the example in the first post. My source signal consists of 3 different signals which are overlayed.

With your solution it's only possible to have one frequency at a time.

I still guess that this incontinuity is not the problem of my phase shift. But I just dont know for sure. Mixed products at higher or multiple frequencies could be a consequence but a shift?