Transient Response
- Updated2023-02-21
- 1 minute(s) read
The transient response occurs because the initial filter state is zero or has values at negative indexes. The duration of the transient response depends on the filter type.
The duration of the transient response for lowpass and highpass filters equals the filter order.
delay = order
The duration of the transient response for bandpass and bandstop filters equals twice the filter order.
delay = 2 × order
The following figure shows the transient response and the steady state for an IIR filter.
Parent topic: FIR and IIR Filters