Time reversed infinite impulse response digital filtering

Details Time reversed infinite impulse response digital filtering Time reversed infinite impulse response digital filtering

H - Electricity

03

H

H03H 17/02 (2006.01) H03H 17/04 (2006.01)

Patent

CA 2153479

-23- A digital filter includes a first memory device, a filter with at least one pole, i.e., a pole filter, coupled to the first memory device, and a second memory device coupled to the pole filter. The first memory device sequentially stores a digital signal in a forward sequence, and the pole filter sequentially reads the stored digital signal from the first memory device in a reverse sequence, thereby creating a time-reversed signal. The time-reversed signal is filtered by the pole filter, and is then stored as a filtered time-reversed signal in the second memory device in the forward sequence. A data signal is generated by the second memory device by reading the filtered time-reversed signal from the second memory device in the reverse sequence.

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