Title:
LRLS FILTER
Document Type and Number:
Japanese Patent JP2016015586
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an LRLS filter capable of obtaining an accurate solution concerning determination of time-varying α(k) and reducing an amount of calculation, and provide an LRLS (leaky recursive least-squares) filter having an algorithm capable of being calculated as a whole with O(N) by adding a calculation method of α(k) of O(N) to an LRLS algorithm of the O(N).SOLUTION: A LRLS filter includes: a normalization coefficient calculation part 21 for calculating a time-varying normalization coefficient; an algorithm initialization part 22 for initializing an algorithm; a signal reception part 23 for receiving an ideal response and an input signal; a signal setting part 24 for setting a difference between the ideal response and an output signal as a pre-estimated error; and an update part 25 for updating a cross correlation function vector between the ideal signal and the input signal on the basis of a root of the time-varying normalization coefficient.
Inventors:
HOTTA EISUKE
Application Number:
JP2014136121A
Publication Date:
January 28, 2016
Filing Date:
July 01, 2014
Export Citation:
Assignee:
UNIV KANAZAWA
International Classes:
H03H21/00
Attorney, Agent or Firm:
Shinichi Abe
Yoshihiro Shimizu
Yuji Tsujida
Yoshihiro Shimizu
Yuji Tsujida