带时间相关乘性噪声多传感器系统的分布式融合估计

马静; 杨晓梅; 孙书利

doi:10.16383/j.aas.c210147

带时间相关乘性噪声多传感器系统的分布式融合估计

doi: 10.16383/j.aas.c210147 cstr: 32138.14.j.aas.c210147

1.
黑龙江大学数学科学学院哈尔滨 150080
2.
黑龙江大学电子工程学院哈尔滨 150080

基金项目: 国家自然科学基金(61573132, 61873087), 黑龙江省信息融合估计与检测重点实验室资助

详细信息

作者简介:
马静：黑龙江大学数学科学学院教授. 主要研究方向为信息融合状态估计. E-mail: majing@hlju.edu.cn

杨晓梅：黑龙江大学数学科学学院硕士研究生. 主要研究方向为信息融合状态估计. E-mail: 15615088651@163.com

孙书利：黑龙江大学电子工程学院教授. 主要研究方向为状态估计, 多传感器信息融合和网络化系统滤波. 本文通信作者. E-mail: sunsl@hlju.edu.cn

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出版历程
- 收稿日期: 2021-02-18
- 网络出版日期: 2021-08-16
- 刊出日期: 2023-08-21

Distributed Fusion Estimation for Multi-sensor Systems With Time-correlated Multiplicative Noises

1.
School of Mathematics Science, Heilongjiang University, Harbin 150080
2.
School of Electronic Engineering, Heilongjiang University, Harbin 150080

Funds: Supported by National Nature Science Foundation of China (61573132, 61873087) and Information Fusion Estimation and Detection Key Laboratory in Heilongjiang Province

More Information

Author Bio:
MA Jing　Professor at the School of Mathematics Science, Heilongjiang University. Her main research interest is information fusion state estimation

YANG Xiao-Mei　Master student at the School of Mathematics Science, Heilongjiang University. Her main research interest is information fusion state estimation

SUN Shu-Li　Professor at the School of Electronic Engineering, Heilongjiang University. His research interest covers state estimation, multi-sensor information fusion, and networked systems filtering. Corresponding author of this paper

摘要

摘要: 研究带时间相关乘性噪声多传感器系统的分布式融合估计问题, 其中时间相关的乘性噪声满足一阶高斯−马尔科夫过程. 通过引入虚拟状态和虚拟过程噪声, 构建了虚拟状态的递推方程. 首先, 基于新息分析方法, 分别对系统状态和虚拟状态设计局部一步预报器. 然后, 基于一步预报器设计状态的局部线性滤波器、多步预报器和平滑器. 推导了任意两个局部状态估计误差之间的互协方差矩阵. 接着, 基于线性最小方差意义下的矩阵加权、对角矩阵加权和标量加权融合算法, 给出相应的分布式融合状态估值器. 最后, 分析算法的稳定性. 仿真研究验证了该算法的有效性.
- 时间相关乘性噪声 /
- 多传感器系统 /
- 分布式融合估值器 /
- 互协方差矩阵 /
- 虚拟状态
Abstract: This paper is concerned with the distributed fusion estimation problem for multi-sensor systems with time-correlated multiplicative noises, where the time-correlated multiplicative noises satisfy first-order Gaussian-Markov processes. By introducing the friction states and friction process noises, the recursive equation of the friction state is established. Local one-step predictors for system state and friction states are designed based on an innovation analysis approach. Then, the local linear filter, multi-step predictor and smoother for the state are designed based on one-step predictor. The cross-covariance matrices between any two local state estimation errors are derived. Further, the corresponding distributed fusion state estimators are given based on the fusion algorithms weighted by matrices, diagonal matrices and scalars in the linear minimum variance sense. At last, the stability of the proposed algorithms is analyzed. The simulation research verifies the effectiveness of the proposed algorithms.
- Time-correlated multiplicative noise /
- multi-sensor system /
- distributed fusion estimator /
- cross-covariance matrix /
- friction state

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图 1 分布式矩阵加权融合滤波的位置跟踪性能

Fig. 1 The position tracking performance of distributed fusion filter weighted by matrices

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图 2 RMSEs比较图

Fig. 2 Comparisons of RMSEs

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图 3 LF、SF、DF、MF、CF的误差方差

Fig. 3 Variances of LFs, SF, DF, MF, and CF

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图 4 矩阵加权融合预报器、滤波器和平滑器的估计误差方差

Fig. 4 Variances of fusion predictor, filter and smoother weighted by matrices

下载: 全尺寸图片幻灯片

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