Self-triggered resilient stabilization of linear systems with quantized outputs
Self-triggered resilient stabilization of linear systems with quantized outputs
复制标题
具有量化输出的线性系统的自触发弹性稳定
DOI：
10.1016/j.automatica.2023.111006
复制
发表时间：
2023
期刊：
影响因子：
6.4
通讯作者：
Chen Jie
中科院分区：
文献类型：
--
作者：
Liu Wenjie;Wakaiki Masashi;Sun Jian;Wang Gang;Chen Jie
本文研究了具有量化输出的自触发控制系统的镇定问题。采用一个标准的基于状态反馈的状态反馈控制律，一个自触发机制，规定下一个采样时间的基础上量化的输出是共同开发的输出编码方案。此外，如果可以适配在传感器到致动器（C-A）和传感器到控制器（S-C）通道处的传输协议，则可以大大简化自触发控制架构，从而利用基于精密无差拍控制器的精密无差拍控制器来消除在编码器侧并行运行控制器的需要。为了解决S-C信道中的拒绝服务（DoS）问题，本文提出的输出编码和自触发控制方案被进一步改进。结果表明，线性时不变系统可以指数稳定，如果满足一些条件的平均拒绝服务持续时间。在最大间隔采样时间和抵抗拒绝服务攻击的能力之间存在权衡。最后，一个数值例子来证明所提出的自触发控制方案和相关理论的实际优点。
This paper studies the problem of stabilizing a self-triggered control system with quantized output. Employing a standard observer-based state feedback control law, a self-triggering mechanism that dictates the next sampling time based on quantized output is co-developed with an output encoding scheme. If, in addition, the transmission protocols at the controller-to-actuator (C–A) and sensor-to-controller (S–C) channels can be adapted, the self-triggered control architecture can be considerably simplified, leveraging a delicate observer-based deadbeat controller to eliminate the need for running the controller in parallel at the encoder side. To account for denial-of-service (DoS) in the S–C channel, the proposed output encoding and self-triggered control schemes are further made resilient. It is shown that a linear time-invariant system can be exponentially stabilized if some conditions on the average DoS duration time are met. There is a trade-off between the maximum inter-sampling time and the resilience against DoS attacks. Finally, a numerical example is presented to demonstrate the practical merits of the proposed self-triggered control schemes and associated theory.