It is shown that variable magnitude characteristics can be obtained by the application of a general bilinear transformation of the type s →a1z+a0/b1z+b0 to a known analog filter. Stability considerations dictate the limits of the values of a1, a0, b1 and b0; and these limits have been determined. Starting from some known filter characteristics in the analog domain, it is shown that different magnitude characteristics can be obtained in the discrete domain.
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering