Incorporating delayed measurements in an improved high-degree cubature Kalman filter for the nonlinear state estimation of chemical processes

2019 ◽  
Vol 86 ◽  
pp. 122-133 ◽  
Author(s):  
Liqiang Zhao ◽  
Jianlin Wang ◽  
Tao Yu ◽  
Kunyun Chen ◽  
Andong Su
Keyword(s):  
Kalman Filter ◽  
State Estimation ◽  
Chemical Processes ◽  
Nonlinear State Estimation ◽  
Cubature Kalman Filter ◽  
Delayed Measurements ◽  
High Degree ◽  
Nonlinear State

A Strong Tracking Cubature Kalman Filter for Nonlinear Estimation

2013 ◽  
Vol 313-314 ◽  
pp. 1115-1119
Author(s):  
Yong Qi Wang ◽  
Feng Yang ◽  
Yan Liang ◽  
Quan Pan
Keyword(s):  
Kalman Filter ◽  
State Estimation ◽  
Scaling Factor ◽  
Estimation Accuracy ◽  
Nonlinear State Estimation ◽  
Cubature Kalman Filter ◽  
Novel Method ◽  
Simulation Results ◽  
Tracking Filter ◽  
Nonlinear State

In this paper, a novel method based on cubature Kalman filter (CKF) and strong tracking filter (STF) has been proposed for nonlinear state estimation problem. The proposed method is named as strong tracking cubature Kalman filter (STCKF). In the STCKF, a scaling factor derived from STF is added and it can be tuned online to adjust the filtering gain accordingly. Simulation results indicate STCKF outperforms over EKF and CKF in state estimation accuracy.

scholarly journals Adaptively Random Weighted Cubature Kalman Filter for Nonlinear Systems

2019 ◽  
Vol 2019 ◽  
pp. 1-13 ◽  
Author(s):  
Zhaohui Gao ◽  
Dejun Mu ◽  
Yongmin Zhong ◽  
Chengfan Gu ◽  
Chengcai Ren
Keyword(s):  
Kalman Filter ◽  
State Estimation ◽  
System Noise ◽  
Nonlinear State Estimation ◽  
Cubature Kalman Filter ◽  
Random Weighting ◽  
Improved Performance ◽  
Noise Statistics ◽  
Estimate System ◽  
Nonlinear State

This paper presents a new adaptive random weighting cubature Kalman filtering method for nonlinear state estimation. This method adopts the concept of random weighting to address the problem that the cubature Kalman filter (CKF) performance is sensitive to system noise. It establishes random weighting theories to estimate system noise statistics and predicted state and measurement together with their associated covariances. Subsequently, it adaptively adjusts the weights of cubature points based on the random weighting estimations to improve the prediction accuracy, thus restraining the disturbances of system noises on state estimation. Simulations and comparison analysis demonstrate the improved performance of the proposed method for nonlinear state estimation.

scholarly journals Nonlinear state estimation using neural-cubature Kalman filter

Automatika ◽  
2017 ◽  
Vol 58 (3) ◽  
pp. 347-353 ◽  
Author(s):  
Zhiyong Miao ◽  
Yi Zhang ◽  
Kun Zhao ◽  
Fan Xun
Keyword(s):  
Kalman Filter ◽  
State Estimation ◽  
Nonlinear State Estimation ◽  
Cubature Kalman Filter ◽  
Nonlinear State
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