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
Linear Quadratic Leader-Follower Stochastic Differential Games: Closed-Loop SolvabilityJournal of Systems Science and Complexity - Tập 36 - Trang 1373-1406 - 2023
Zixuan Li, Jingtao Shi
In this paper, a leader-follower stochastic differential game is studied for a linear stochastic differential equation with quadratic cost functionals. The coefficients in the state equation and the weighting matrices in the cost functionals are all deterministic. Closed-loop strategies are introduced, which require to be independent of initial states; and such a nature makes it very useful and co...... hiện toàn bộ
High Speed Machining for Linear Paths Blended with G3 Continuous Pythagorean-Hodograph CurvesJournal of Systems Science and Complexity - Tập 35 Số 4 - Trang 1586-1607 - 2022
Zhao, Kai, Li, Shurong
Previously, many studies have illustrated corner blend problem with different parameter curves. Only a few of them take a Pythagorean-hodograph (PH) curve as the transition arc, let alone corresponding real-time interpolation methods. In this paper, an integrated corner-transition mixing-interpolation-based scheme (ICMS) is proposed, considering transition error and machine tool kinematics. Firstl...... hiện toàn bộ
Multi-Cluster Flocking Behavior Analysis for a Delayed Cucker-Smale Model with Short-Range Communication WeightJournal of Systems Science and Complexity - Tập 35 - Trang 137-158 - 2021
Zhengyang Qiao, Yicheng Liu, Xiao Wang
This paper analyzes the multi-cluster flocking behavior of a Cucker-Smale model involving delays and a short-range communication weight. In each sub-flocking group, the velocity between agents is alignment and the position locates at a limited domain; but in different sub-flocking groups, the position between agents is unbounded. By constructing dissipative differential inequalities of sub-ensembl...... hiện toàn bộ
Measuring and locating zones of chaos and irregularityJournal of Systems Science and Complexity - Tập 27 - Trang 494-506 - 2014
David Matthew Garner, Bingo Wing-Kuen Ling
The new measures computed here are the spectral detrended fluctuation analysis (sDFA) and spectral multi-taper method (sMTM). sDFA applies the standard detrended fluctuation analysis (DFA) algorithm to power spectra. sMTM exploits the minute increases in the broadband response, typical of chaotic spectra approaching optimal values. The authors chose the Brusselator, Lorenz, and Duffing as the prop...... hiện toàn bộ
Budget constraints in homogenous multi-unit auctionsJournal of Systems Science and Complexity - Tập 25 - Trang 549-555 - 2012
Yaqiong Wu, Yong Zhao, Chaoyuan Yue, Xianglin Wu
A homogenous multi-unit auction model is studied in two conditions: One is that the bidders face budget constraints and another is that the bidders do not face budget constraints. Two equilibrium bidding strategies of each bidder are presented in these two conditions. By comparing them, the authors show that the equilibrium unit price bid in the presence of budget constraints will be less than tha...... hiện toàn bộ