Comments on 'Finite-Time Control of Uncertain Fractional-Order Positive Impulsive Switched Systems with Mode-Dependent Average Dwell Time'

摘要

Some notes are presented on the paper "Finite-Time Control of Uncertain Fractional-Order Positive Impulsive Switched Systems with Mode-Dependent Average Dwell Time" by Liu L. et al (Circuit Syst Signal Processing 37: 3739-3755, 2018). Fractional calculus has the memory property and this is relevant to the whole process from the initial value t(0) to the current time t. However, this important property is neglected in the above paper, and consequently, the main outcome is incorrect. A counter example is presented to verify our analysis.