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协方差重置的两阶段递推贝叶斯参数辨识算法

景绍学

计算机工程与应用2017,Vol.53Issue(6):60-66,251,8.
计算机工程与应用2017,Vol.53Issue(6):60-66,251,8.DOI:10.3778/j.issn.1002-8331.1509-0043

协方差重置的两阶段递推贝叶斯参数辨识算法

Two-stage recursive Bayesian parameter identification algorithm with covariance resetting

景绍学1

作者信息

  • 1. 淮安信息职业技术学院 电气工程系,江苏 淮安 223003;江苏大学 电气信息工程学院,江苏 镇江 212013
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摘要

Abstract

In order to obtain unbiased estimates in the presence of colored noise, a two-stage recursive Bayesian identifica-tion algorithm is proposed based on auxiliary model principle and decomposing technique. In this algorithm, the original model is decomposed into two fictional sub-models firstly, and then identified respectively;the estimated noise variance and a new covariance resetting method are also integrated into the algorithm to obtain improved estimates. Compared with recursive least squares algorithm, the proposed algorithm can reduce the computational burden. According to the simu-lation, the estimation error of the proposed algorithms is smaller than that of the recursive least squares. An industrial appli-cation validates the proposed algorithm.

关键词

两阶段递推算法/递推贝叶斯算法/最小二乘算法/协方差重置

Key words

two-stage recursive algorithm/recursive Bayesian algorithm/the least squares algorithm/covariance resetting

分类

信息技术与安全科学

引用本文复制引用

景绍学..协方差重置的两阶段递推贝叶斯参数辨识算法[J].计算机工程与应用,2017,53(6):60-66,251,8.

基金项目

国家自然科学基金(No.51477070) (No.51477070)

江苏大学研究生科研创新项目(No.KYXX_0003). (No.KYXX_0003)

计算机工程与应用

OA北大核心CSCDCSTPCD

1002-8331

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