Formation control problems for high-order linear time-invariant multiagent systems with time delays are investigated. First, a general time-varying formation protocol is proposed. Then, based on consensus approaches, necessary and sufficient conditions to achieve given presented. An explicit expression of the reference function also given. It shown that motion modes can be specified. Furthermore, feasibility approach expand feasible set an algorithm design formations provided, respectively....

Robust attitude stabilization problem is dealt with for quadrotor systems subject to nonlinear and coupling dynamics, uncertainties including parametric uncertainties, unmodeled external disturbances, time-varying state input delays. A robust controller proposed consisting of a nominal state-feedback compensator. The designed the uncertain delay free model achieve desired control performances, while compensator added restrain effects delays on closed-loop system. design method leads linear...

The guaranteed-performance consensualization for high-order linear and nonlinear multiagent systems with switching topologies is respectively realized in a completely distributed manner the sense that consensus design criteria are independent of interaction motions. This paper first proposes an adaptive protocol constraints topologies, where weights among neighboring agents adaptively adjusted state errors all can be regulated. Then, new translation-adaptive strategy shown to realize control...

The current paper investigates energy-constraint formation design and analysis problems for multiagent systems with two types of switching interaction topologies; that is, leaderless ones leader-following ones. Firstly, a new control protocol topologies is shown, where the whole energy supply limited previously. Then, by constructing relationship matrix variable, sufficient conditions are respectively presented linear inequality tool. Furthermore, an approach proposed to determine explicit...

Robust time-varying formation design problems for second-order multi-agent systems subjected to external disturbances are investigated. Firstly, by constructing an extended state observer, the disturbance compensation is estimated, which a critical term in proposed robust control protocol. Then, explicit expression of center function determined and impacts compensations on presented. With feasibility conditions, criteria derived determine gain matrix protocol utilizing algebraic Riccati...

This article deals with limited-budget output consensus for descriptor multiagent systems two types of switching communication topologies, that is, connected ones and jointly ones. First, a singular dynamic feedback control protocol topologies is proposed on the basis observable decomposition, where an energy constraint involved states neighboring agents are utilized to derive new two-step design approach gain matrices. Then, problems transformed into asymptotic stability valid candidate...

Minimum-energy formation achievement problems for networked multiagent systems are investigated, where information networks with leaderless and leader-follower structures respectively addressed randomly switching. The critical feature of this work is that the energy constraint minimum in sense linear matrix inequality, but limited-budget control guaranteed-cost cannot realize a minimum-energy formation. Firstly, problem converted into an asymptotic stability one via nonsingular...

This article considers consensus of first-order/second-order hybrid multiagent systems (MASs) based on game modeling. In the first-order MAS (HMAS), a subset agents select Nash equilibrium multiplayer as their states at each time and others update with continuous-time (C-T) dynamics. By graph theory matrix theory, we establish sufficient necessary conditions for HMAS two proposed protocols. The second-order is composed whose are determined by governed C-T Similarly, given Several numerical...

In this study the swarm stability problem of high-order linear time-invariant (LTI) systems with directed graph topology is dealt with. Consensus can be regarded as a specific type problem. Necessary and sufficient conditions for both consensus are presented. These depend on topology, dynamics agents interactions among neighbours. Simulation instances shown to illustrate theoretical results.

The current paper addresses the distributed guaranteed-cost synchronization problems for general high-order linear multiagent networks. Existing works on usually require all state information of neighboring agents and cannot give cost budget previously. For both leaderless leader-following interaction topologies, first proposes a dynamic output feedback protocol with constraints, which can realize tradeoff design between energy consumption regulation performance given budget. Then, according...

This letter focuses on fully distributed secure tracking control for leader-following nonlinear multiagent systems subject to multi-link sequence scaling attacks. Firstly, an edge-based adaptive scheme is proposed followers counteract the effects of attacks and can be implemented in a fashion. Then, by utilizing Lipschitz condition properties Laplacian potential, sufficient conditions with achieve are given, where attack duration that system render presented. Finally, numerical simulation...

This article investigates completely distributed secure consensus control (SCC) of high-order linear and Lipschitz nonlinear multiagent systems (MASs) in the presence interaction link attacks, respectively, where design criteria are independent topology parameters attacks. An estimator-based adaptive SCC protocol is proposed to realize SCC, coupling weights virtual reference state estimator (VDRSE) adaptively adjusted eliminate impacts Then, leader–follower leaderless structures unified into...

Summary This paper addresses the robust attitude control problem of miniature quadrotors. A simplified linear dynamical model is obtained for each angle, whereas nonlinear dynamics, interaxis coupling, parameter perturbations, and external disturbances are considered as uncertainties. For channel, a time‐invariant decoupled controller proposed based on reduced‐order observer compensator. The applied to estimate angular velocities, compensator introduced reducing effects It proven that...

The rapid popularity of UAVs has encouraged the development Anti-UAV technology. Infrared-detector-based visual tracking for provides an encouraging solution Anti-UAVs. However, it still faces problem instability caused by environmental thermal crossover and similar distractors. To address these issues, we propose a spatio-temporal-focused Siamese network infrared UAV tracking, called STFTrack. This method employs two-level target focusing strategy from global to local. First, feature...

Abstract Guaranteed cost consensus analysis and design problems for multi‐agent systems with fixed interaction topologies are investigated. introduced to obtain a tradeoff between the regulation performance energy consumption, where function is constructed based on state errors among neighboring agents control inputs of all agents. Sufficient conditions guaranteed consensualization given by space decomposition approach Lyapunov method, an upper bound value determined respectively. It should...