- Typical choices: Euler methods, bilinear transformation,
Impulse Response invariance.
- Our choice: the 1-step Weighted Sample method.
k-step WS methods
- Designed for linear differential systems
- Based on a -order polynomial interpolation of the input
- The Impulse Response invariance is equivalent to the 0-step
Weighted Sample method.
- A -order continuous filter is mapped by the -step
WS method into a -order digital filter.
- : the reed filter is mapped into
a nd order digital filter.