The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 20, 2009
Filed:
May. 08, 2004
Kiyoshi Nishiyama, Morioka, JP;
Kiyoshi Nishiyama, Morioka, JP;
Abstract
It is possible to establish an estimation method capable of logically and optimally deciding a forgetting coefficient and develop an estimation algorithm and a high-speed algorithm which are numerically stable. Firstly, a Processing section reads out or receives an upper limit value γfrom a storage section or an input section (S). The.processing section decides a forgetting coefficient ρ by equation (15) (S). After this, according to the forgetting coefficient ρ, the processing section executes a hyper Hfilter of equations (10-13) (S). The processing section () calculates the existence condition of equation (17) (or equation (18) which will be given later) (S). When the existence condition is satisfied at all the times (S), γis decreased by Δγ and the same processing is repeated (S). On the other hand, when the existence condition is not satisfied by a certain γ(S), the Δγ is added to the γand the sum is output to an output section and/or stored in the storage section as an optimal value γof the γ(S).