Title:
SIGNAL PROCESSING DEVICE AND SIGNAL PROCESSING METHOD
Document Type and Number:
Japanese Patent JP2015019174
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a signal processing device that has an improved characteristic of suppressing an interference signal.SOLUTION: A signal processing device 1 includes: an adaptive filter 19 for outputting an interference replica signal input thereinto via a band limiting filter 17, through a transversal filter 20 whose characteristic is adjusted so as to reduce a power of a given error signal; an addition/subtraction section 18 for subtracting an output signal of the adaptive filter 19 from a target signal input thereinto via a band limiting filter 16 to calculate and output the error signal; a transversal filter 14 whose characteristic is set in accordance with the characteristic of the adaptive filter 19; and an addition/subtraction section 13 for subtracting the interference replica signal input thereinto via a delay section 12 and the transversal filter 14 from the target signal input thereinto via a delay section 11 to calculate and output an interference-suppressed output signal.
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Inventors:
HASEGAWA OSAMU
OIWAKE SHINICHI
OIWAKE SHINICHI
Application Number:
JP2013144014A
Publication Date:
January 29, 2015
Filing Date:
July 09, 2013
Export Citation:
Assignee:
JAPAN RADIO CO LTD
International Classes:
H03H21/00; H03H15/00; H04B3/04; H04B7/005
Attorney, Agent or Firm:
Masatake Shiga
Norio Takahashi
Toshio Komuro
Norio Takahashi
Toshio Komuro
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