Title:
適応多段式ウィーナーフィルタ
Document Type and Number:
Japanese Patent JP2005522136
Kind Code:
A
Abstract:
A computationally efficient, adaptive multistage Wiener filter employs two modules, a linear filter module that operates at the input data rate and an update module that operates at a plurality of rates but performs many calculations at only the update rate. This filter is especially useful when the channel conditions vary slowly so that the filter's update rate can be considerably less than the input data rate. Separating the calculations, preferably performing appropriate calculations at different rates and preferably substituting scalar operations for vector operations can provide improved computational efficiency while maintaining high levels of performance.
Inventors:
Despain Albin M
Application Number:
JP2003582902A
Publication Date:
July 21, 2005
Filing Date:
April 02, 2003
Export Citation:
Assignee:
Acorn Technologies Inc.
International Classes:
H03H17/02; H03H21/00; (IPC1-7): H03H21/00; H03H17/02
Attorney, Agent or Firm:
Kenji Yoshida
Jun Ishida
Jun Ishida