Analog prototype for Cauer filter.
[Zz, Zp, Zg] = ncauer(Rp, Rs, n) [Zz, Zp] = ncauer(Rp, Rs, n) Zz = ncauer(Rp, Rs, n)
Filter Order
Peak-to-peak passband ripple
Stopband attenuation
This is an Octave function. It designs an analog prototype for Cauer filter of nth order, with a Peak-to-peak passband ripple of Rp and a stopband attenuation of Rs.
n = 5; Rp = 5; Rs = 5; [Zz, Zp, Zg] = ncauer(Rp, Rs, n) Zz = 0.0000 + 2.5546i 0.0000 + 1.6835i -0.0000 - 2.5546i -0.0000 - 1.6835i Zp = -0.10199 + 0.64039i -0.03168 + 0.96777i -0.10199 - 0.64039i -0.03168 - 0.96777i -0.14368 + 0.00000i Zg = 0.0030628 |  |  |