Title :
A Modified LOLIMOT Algorithm for Nonlinear Estimation Fusion
Author :
Rezaie, Javad ; Moshiri, Behzad ; Rafati, Amir ; Araabi, Babak N.
Author_Institution :
Univ. of Tehran, Tehran
Abstract :
In this paper, first an enhanced NeuroFuzzy method for modeling nonlinear system is presented. In this method we use EM algorithm for identification of local models, which gain us model mismatch covariance. The achieved model can be stated in state space model as a linear time-varying system. As the noise and model mismatch covariace is known, Kalman filter can be easily used for centralized estimation fusion. The simulations show that using data fusion will enhance the estimation accuracy to a great deal also accuracy of centralized estimation fusion is better than distributed estimation fusion.
Keywords :
covariance analysis; estimation theory; expectation-maximisation algorithm; fuzzy control; neurocontrollers; nonlinear control systems; sensor fusion; time-varying systems; trees (mathematics); Kalman filter; centralized estimation fusion; distributed estimation fusion; expectation-maximisation algorithm; linear time-varying system; local linear model tree algorithm; model mismatch covariace; neurofuzzy method; nonlinear estimation fusion; Frequency locked loops; Fuzzy sets; Intelligent control; Least squares approximation; Nonlinear control systems; Nonlinear systems; Partitioning algorithms; Process control; Spline; State estimation;
Conference_Titel :
Information Reuse and Integration, 2007. IRI 2007. IEEE International Conference on
Conference_Location :
Las Vegas, IL
Print_ISBN :
1-4244-1500-4
Electronic_ISBN :
1-4244-1500-4
DOI :
10.1109/IRI.2007.4296673