System identification method

Details System identification method System identification method

2006-05-02

2006-05-02

Phan, Thai (Department: 2128)

Data processing: structural design, modeling, simulation, and em

Modeling by mathematical expression

C703S006000, C706S032000, C700S037000, C708S323000

Reexamination Certificate

active

07039567

ABSTRACT:
Quick real-time identification and estimation of a time-non-varying or time-varying system. A new H∞evaluation criterion is determined, a fast algorithm for a modified H∞filter based on the criterion is developed, and a quick time-varying system identifying method according to the fast H∞filtering algorithm is provided. By the fast H∞filtering algorithm, a time-varying system sharply varying can be traced with an amount 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 sequentially determined from the estimate and subtracted from the real echo to cancel the echo. Thus an echo chancellor is realized.

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