so you're basically saying all i need to use is use only the real part, right?
my frankenstein was working and alive for several times until i tried some bandpass coeff, let's se if i fix this now :) 2013/9/24 Funs Seelen <[email protected]> > > > > On Tue, Sep 24, 2013 at 3:08 PM, Funs Seelen <[email protected]> wrote: > >> On Tue, Sep 24, 2013 at 2:50 PM, Alexandre Torres Porres < >> [email protected]> wrote: >> >>> one doubt emerges really soon anyway. Since they are complex (there are >>> two coordinate numbers for each pole and zero) how do I get only one number >>> by, for example, summing or multiplying one pole to the other? as in: >>> >>> *b1* = -(P0 + P1) >>> *b2* = (P0*P1) >>> >> >> You don't, the coefficients can be complex too. However, I discovered >> that mirroring (*) every pole and zero results in just real values without >> imaginary part. I don't have any mathematical proof for this, but it >> probably wouldn't be too hard to find such. >> > > I remembered again, it's called the complex conjugate. > http://en.wikipedia.org/wiki/Complex_conjugate > > > >> >> *) adding another pole/zero for each complex one, like z=-j if you >> already have a z=j. >> > >
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