ABSTRACT
As discussed in Chapter 70, conventional approximation techniques (Butterworth, Chebyshev, Elliptic, Bessel, etc.) lead to a normalized transfer function denoted
low-pass prototype
(LPP). The LPP is characterized by a passband frequency
Ω
= 1.0 rad/s, a maximum passband ripple
A
(or
A
), a minimum stopband attenuation
A
(or
A
), and a stopband frequency
Ω
.
