A non-uniform event-triggered distributed filtering scheme for discrete-time nonlinear systems over wireless sensor networks

被引:18
作者
Basit, Abdul [1 ]
Tufail, Muhammad [1 ]
Rehan, Muhammad [1 ]
Rashid, Haroon Ur [1 ]
机构
[1] Pakistan Inst Engn & Appl Sci PIEAS, Dept Elect Engn, Islamabad 45650, Pakistan
关键词
Set-membership filtering; one-sided Lipschitz; event-triggering; discrete-time systems; wireless sensor networks; STATE ESTIMATION;
D O I
10.1177/01423312221126233
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
This paper investigates the distributed set-membership filtering problem for discrete-time nonlinear systems subject to one-sided Lipschitz (OSL) and quadratic inner-boundedness (QIB) constraints over wireless sensor networks (WSNs). The investigation takes into account both system and sensor nonlinearities under unknown but bounded (UBB) perturbations. Moreover, a novel non-uniform event-triggering condition is introduced to achieve resource conservation while maintaining filter accuracy. The proposed triggering condition is more general and can be customized as per design requirements. Furthermore, a recursive condition for set-membership filter design is derived that guarantees the existence of optimal bounding ellipsoids for true system states. In contrast to the existing methods, the proposed approach considers set-membership filtering for discrete-time systems subject to OSL system and sensor nonlinearities over a WSN and deals with non-uniform amplitude-based triggering. Finally, a numerical example is presented to validate filter's efficacy.
引用
收藏
页数:10
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