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JuliaDSP / DSP.jl

Filter design, periodograms, window functions, and other digital signal processing functionality
https://docs.juliadsp.org/stable/contents/
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bessel ? #149

Open bjarthur opened 7 years ago

bjarthur commented 7 years ago

i need a low-pass bessel filter. anyone happen to have one they could contribute?

alexcanepa commented 5 years ago

bump! As a DSP newbie, I'm happy to work on this if someone could point me to similar implementations in other software

galenlynch commented 5 years ago

Would you want to use a Bessel filter to design analog or digital filters? If you want the latter, Wikipedia suggests it might not be a good idea. Other common DSP packages do not seem to have a digital Bessel function. The Matalb function besself says it does not support digital design, and the notes section of the SciPy implemenation also warns that the digital version does not have the correct phase response.