Chebyshev Type I filter prototype
Return the poles and gain of an analog Chebyshev Type I lowpass filter prototype.
cheb1ap(n, Rp)
n |
Order of the filter. |
Rp |
dB of pass-band ripple. |
This function exists for compatibility with 'Matlab' and 'OCtave' only, and
is equivalent to cheby1(n, Rp, 1, "low", "s").
List of class Zpg containing the poles and gain of the
filter.
Carne Draug, carandraug+dev@gmail.com.
Conversion to R by Geert van Boxtel, G.J.M.vanBoxtel@gmail.com.
## 9th order Chebyshev type I low-pass analog filter zp <- cheb1ap(9, .1) w <- seq(0, 4, length.out = 128) freqs(zp, w)
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