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SYSTEM IDENTIFICATION METHOD achieved

Foreign code F110004470
File No. Y0125CA
Posted date Jul 15, 2011
Country Canada
Application number 2426004
Gazette No. 2426004
Gazette No. 2426004
Date of filing Oct 16, 2001
Gazette Date Apr 7, 2003
Gazette Date Mar 24, 2009
Priority data
  • P2000-323958 (Oct 24, 2000) JP
Title SYSTEM IDENTIFICATION METHOD achieved
Abstract

Quick real-time identification and estimation of a time-non-varying or time- varying system. A new H.infin. evaluation criterion is determined, a fast algorithm for a modified H.infin. filter based on the criterion is developed , and a quick time-varying system identifying method according to the fast H.infin. filtering algorithm is provided. By the fast H.infin. filtering algorithm, a time-varying system sharply varying can be traced with an amoun t of calculation O(N) per unit time step. The algorithm completely agrees with a fast Kalman filtering algorithm at the extreme of the upper limit value. If the estimate of impulse response is determined, a pseudo-echo is sequentiall y determined from the estimate and subtracted from the real echo to cancel the echo. Thus an echo chancellor is realized.

  • Applicant
  • JAPAN SCIENCE AND TECHNOLOGY CORPORATION
  • Inventor
  • NISHIYAMA, KIYOSHI
IPC(International Patent Classification)
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