IEEE Trans Cybern. 2019 May;49(5):1570-1579. doi: 10.1109/TCYB.2018.2802044. Epub 2018 Feb 16.
This paper focuses on the issue of designing an adaptive event-triggered scheme to the decentralized filtering for a class of networked nonlinear interconnected system. A novel adaptive event-triggered condition is proposed by constructing an adaptive law for the threshold. This new type of threshold mainly depends on the error between the states at the current sampling instant and the latest releasing instant, by which the data release rate is adapted to the variation of the system. The limitation of network bandwidth is alleviated on account of a large amount of "unnecessary" packets being dropped out before accessing the network. Sufficient conditions are derived such that the overall filtering error system under the proposed adaptive data-transmitting scheme is asymptotically stable with a prescribed disturbance attenuation level. An example is given to show the effectiveness of the proposed scheme.
本文针对一类网络非线性互联系统的分散式滤波问题，设计了一种自适应事件触发方案。通过构造一个阈值自适应律，提出了一种新颖的自适应事件触发条件。这种新型的阈值主要取决于当前采样时刻和最新释放时刻之间的状态误差，从而使数据释放率适应系统的变化。通过在访问网络之前丢弃大量“不必要”的数据包，可以减轻网络带宽的限制。得出了充分条件，使得在所提出的自适应数据传输方案下，整个滤波误差系统在给定的干扰衰减水平下是渐近稳定的。通过一个实例来说明所提出方案的有效性。
