On Tue, Sep 24, 2013 at 2:50 PM, Alexandre Torres Porres <por...@gmail.com>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. *) adding another pole/zero for each complex one, like z=-j if you already have a z=j.
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