排序方式: 共有5条查询结果,搜索用时 0 毫秒
1
1.
Variance-Constrained Filtering Fusion for Nonlinear Cyber-Physical Systems With the Denial-of-Service Attacks and Stochastic Communication Protocol 下载免费PDF全文
Hang Geng Zidong Wang Yun Chen Xiaojian Yi Yuhua Cheng 《IEEE/CAA Journal of Automatica Sinica》2022,9(6):978-989
In this paper, a new filtering fusion problem is studied for nonlinear cyber-physical systems under error-variance constraints and denial-of-service attacks. To prevent data collision and reduce communication cost, the stochastic communication protocol is adopted in the sensor-to-filter channels to regulate the transmission order of sensors. Each sensor is allowed to enter the network according to the transmission priority decided by a set of independent and identically-distributed random variables. From the defenders’ view, the occurrence of the denial-of-service attack is governed by the randomly Bernoulli-distributed sequence. At the local filtering stage, a set of variance-constrained local filters are designed where the upper bounds (on the filtering error covariances) are first acquired and later minimized by appropriately designing filter parameters. At the fusion stage, all local estimates and error covariances are combined to develop a variance-constrained fusion estimator under the federated fusion rule. Furthermore, the performance of the fusion estimator is examined by studying the boundedness of the fused error covariance. A simulation example is finally presented to demonstrate the effectiveness of the proposed fusion estimator. 相似文献
2.
3.
Dongyan Chen Weilu Chen Jun Hu Hongjian Liu 《International journal of systems science》2019,50(2):231-243
This paper is concerned with the variance-constrained filtering problem for a class of discrete-time genetic regulatory networks (GRNs) with state delay and random one-step measurement delay. The phenomenon of the random one-step measurement delay is characterised by a random variable, which is assumed to obey the Bernoulli distribution with known occurrence probability. The purpose of the addressed problem is to design a filter such that, in the presence of state delay and random one-step measurement delay, an upper bound of the filtering error covariance matrix can be obtained and the explicit expression of the filter gain matrix is given. Then, the proposed variance-constrained filtering method can be used to approximate the concentrations of mRNAs and proteins. Finally, a numerical example is provided to illustrate the effectiveness of the designed filtering scheme. 相似文献
4.
本文考虑线性离散随机系统的容错约束方差控制设计问题,即设计反馈控制器,使闭环系统在可能的传感器失效不仅保持渐近稳定,而且满足预先给定的稳态方差约束,文中导出期望了容约束方差控制器存在的充分条件,并进一步给出了其参数化代数表达式。 相似文献
5.
针对目标跟踪系统不可避免存在的量测值丢失的情况,研究了统计意义下基于不完全量测的估计误差协方差的性质,并分析了稳态滤波误差方差与量测噪声之间的关系。当传感器探测概率已知,在给定的误差方差约束下,给出了考虑不完全量测条件下滤波器的一种新算法,可使系统具有最大容许量测噪声强度,从而可降低对传感器精度的要求。数值算例和蒙特卡罗(Monto Carlo)仿真结果表明了该方法的有效性。 相似文献
1