Sigma Studio IQ modulator/demodulator
I'd like to use the SigmaDSP for IQ demodulator (and in the future for modulator). I'd like to create a 90 degrees phase shift block (AF -> 300-3000Hz).
Have you got any idea how can I do this?
(My idea is too difficult and not too elegant - I can crate many (10-12 pcs) filters and delay blocks. I hope you have a simplest solution).
iq
shift
phase
It is not possible to implement an arbitrary phase shift in SigmaStudio. That topic has been addressed a few times before. Here are some links to other posts if you're interested in reading what has been discussed about that topic on the forum:
https://ez.analog.com/message/23869#23869
https://ez.analog.com/message/12996#12996
https://ez.analog.com/message/18805#18805
https://ez.analog.com/message/11254#11254
That being said, it looks like this might be possible with the Hilbert Transform:
https://ez.analog.com/message/38806#38806
We have a Hilbert Transform cell in the latest version of SigmaStudio that might help you to do this. I'm not too sure about the details, though, since I don't have experience with this kind of signal processing.
Thanks a lot!
The Hilbert Transform block is enough for me. Where can I find it in the Sigma Studio?
It's in Advanced DSP - Transforms.
It's only available for some SigmaDSP cores, and you might need the latest beta in order to see it in the library.
I found there . Many thanks for it!
Where I find on SigmaStudio for 1701 Hilberts Transform
Thanks
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