Stability of a Variable Coefficient Star-Shaped Network with Distributed DelayJournal of Systems Science and Complexity - Tập 35 - Trang 2077-2106 - 2022
Hai-E. Zhang, Gen-Qi Xu, Hao Chen, Min Li
The paper deals with the exponential stability problem of a variable coefficient star-shaped network, whose strings are coupled at a common end in a star-shaped configuration and the common connection of all strings can be moved. Two kinds of media materials with a component of viscous and another simply elastic are distributed on each string. Under suitable hypothesis on the coefficient functions...... hiện toàn bộ
Adaptive set stabilization of the attitude of a rigid spacecraft without angular velocity measurementsJournal of Systems Science and Complexity - Tập 24 - Trang 105-119 - 2011
Shihong Ding, Shihua Li, Qi Li
The global adaptive set stabilization problem of the attitude of a rigid spacecraft is addressed in this paper. Two different cases are considered. First, by using adaptive backstepping method, the authors design a global adaptive control law for the attitude control system with unknown inertia matrix such that the attitude and the angular velocities can be globally asymptotically stabilized to a ...... hiện toàn bộ
Practical Exponential Stability of Two Dimensional Nonlinear Switched Positive Systems in the Roesser ModelJournal of Systems Science and Complexity - Tập 36 - Trang 1103-1115 - 2023
Jie Zhang, Yuangong Sun
This paper deals with the practical exponential stability of two-dimensional (2-D) nonlinear switched positive systems with impulse, disturbance and all modes unstable. Under the mode-dependent interval dwell time switching, new criteria such that 2-D nonlinear switched positive systems achieve practical exponential stability are derived. Furthermore, the explicit upper bound and convergence rate ...... hiện toàn bộ
Estimating the Size of an Open Population with Massive Datasets Based on a Generalized Varying-Coefficient ModelJournal of Systems Science and Complexity - Tập 35 - Trang 1116-1136 - 2021
Haoqi Li, Yuan Li
A generalized varying-coefficient model is proposed to estimate a population size at a specific time from multiple lists of an open population. The research datasets have millions of records with a very long time span (38 years), bringing challenges to calculations. The authors develop a regularization iterative algorithm to overcome this difficulty. The asymptotic distribution of the proposed est...... hiện toàn bộ