RecurrenceFilter

RecurrenceFilter[{α,β},x] filters x using a linear recurrence equation with coefficients α and β.

RecurrenceFilter[tf,x] uses a discrete-time filter defined by the TransferFunctionModel tf.

RecurrenceFilter[…,x,{y0,y-1,…}] uses a specified list {y0,y-1,…} as the initial condition.

RecurrenceFilter[…,image] filters image.

RecurrenceFilter[…,sound] filters sampled sound object.

Examples

Apply a simple recurrence filter:

RecurrenceFilter[{{1}, {0.5}}, {1, 0, 0, 0, 0}]
(* {1., 0.5, 0.25, 0.125, 0.0625} *)

Please visit the official Wolfram Language Reference for more details.