Title:
システム同定方法及びプログラム及び記憶媒体、システム同定装置
Document Type and Number:
Japanese Patent JP5196653
Kind Code:
B2
Abstract:
A large-scale sound system or communication system is numerically and stably identified. When an input signal is represented by the M(s N)-th order AR model, high-speed H filtering can be performed with a computational complex 3N + O(M). A processing section determines the initial state of a recursive equation (S201), sets C U k according to an input u k (S205), determines a variable recursively (S207), updates a matrix G k N , calculates an auxiliary gain matrix K U k N (S209), divides it (S211), calculates a variable D k M and a backward prediction error · M, k (S213), calculate a gain matrix K k (S215), and updates a filter equation of a high-speed H filter (S217). To reduce the computational complexity, K k (:, 1)/(1+³ f -2 H k K k (:, 1) ) is directly used as the filter gain K s, k .
Inventors:
Kiyoshi Nishiyama
Application Number:
JP2008510975A
Publication Date:
May 15, 2013
Filing Date:
April 12, 2007
Export Citation:
Assignee:
Iwate University
International Classes:
H04B3/23; H03H21/00
Attorney, Agent or Firm:
Ken Hashizume