Apparatus for performing a non-integer sampling rate change in a

Details Apparatus for performing a non-integer sampling rate change in a Apparatus for performing a non-integer sampling rate change in a

1998-10-22

2000-10-17

Chin, Stephen

Pulse or digital communications

Equalizers

375260, 341 61, 708313, H03H 730

Patent

active

061342688

ABSTRACT:
A multichannel polyphase filter (304, 602) includes a processing system (204, 506) for accepting and processing M input channels of data, each sampled at an input sampling rate, wherein M is a positive integer greater than unity. The processing system is programmed to provide a commutator (308, 606) for the multichannel polyphase filter, wherein the position of the commutator is decoupled from the phase of a filter impulse response selected for the position, thereby allowing the multichannel polyphase filter to be operated at a sampling rate that is a non-integer multiple of the input sampling rate. The processing system is further programmed to operate the multichannel polyphase filter at the non-integer multiple of the input sampling rate to obtain a non-integer sampling rate change.

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