the focus of the paper are accessibility (in a finite number of steps) conditions for nonlinear control systems withthe Grunwald-Letnikov fractional order h-difference operator. these conditions are presented in term...
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ISBN:
(纸本)9798350362350;9798350362343
the focus of the paper are accessibility (in a finite number of steps) conditions for nonlinear control systems withthe Grunwald-Letnikov fractional order h-difference operator. these conditions are presented in terms of the greatest left common divisors of shifted polynomials associated withthe given system. the obtained results extend the polynomial approach to accessibility problem of nonlinear discrete-time control systems on fractional case.
In this paper, the trajectory tracking problem for underactuated Autonomous underwater vehicles (AUVs) is investigated. First, a nonlinear 4-DOF AUV model is adopted, considering the unknown parameters and external di...
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ISBN:
(纸本)9798350350319;9798350350302
In this paper, the trajectory tracking problem for underactuated Autonomous underwater vehicles (AUVs) is investigated. First, a nonlinear 4-DOF AUV model is adopted, considering the unknown parameters and external distances. Two control objectives and corresponding error dynamics are established according to different tracking errors. To achieve accurate AUV tracking control, an adaptive robust control strategy is proposed, combining the backstepping control ideology. this controller could adaptively estimate uncertain model parameters and disturbances recursively and compensate for the estimation errors robustly. theoretical analysis demonstrates that the proposed control scheme can ensure system stability, enhance the transient response, and give great trajectory tracking performance, which is validated again by the numerical simulations.
Withthe improvement of productivity levels, people's demand for enhanced functionality and expanded application scenarios of mobile robots is increasing. Mobile robots are playing an increasingly critical role in...
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For wheel-legged robots, the unique wheel-legged structure significantly influences the dynamics and kinematic behavior of the foot during ground contact. this paper presents a resistive strain gauge sensor integratio...
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Withthe increasing urbanization, the proliferation of highways has significantly increased the workload involved in highway maintenance. In particular, the maintenance inspection of tunnels plays a crucial role in en...
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this study conducts an in-depth exploration of the gait issues of bionic robotic dogs for elderly care. the main objective of this research is to improve the model predictive control (MPC) algorithm through deep learn...
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this paper presents the control of multiple unmanned aerial manipulators that perform various manipulator tasks keeping a given formation. the Software-in-loop simulation is utilised to test and validate three coopera...
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ISBN:
(纸本)9798331518509;9798331518493
this paper presents the control of multiple unmanned aerial manipulators that perform various manipulator tasks keeping a given formation. the Software-in-loop simulation is utilised to test and validate three cooperative algorithms, i.e., line formation tracking a piecewise continuous trajectory, circular trajectory in a cyclic pursuit, and finally a pick and place operation during formation. We employed leader-follower strategies and performed experiments using the Robot Operating System, Gazebo, and PX4. During the formation process, the manipulator is tested for various poses yet it maintained stability and followed the designated path. Performance of the proposed controller and algorithms are evaluated through real-time simulation analysis.
this paper provides a multi-differential gear train AGV precise positioning system and control method, which solves the problems of poor autonomous positioning accuracy and low efficiency of multi-differential gear tr...
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In the manufacturing and assembly process of domestic large airplanes, the vibration in the surrounding environment greatly affects the working efficiency and precision of automated equipment. According to the vibrati...
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Inertial navigation has gained extensive application because it solely relies on built-in Inertial Measurement Unit (IMU) devices. Nevertheless, due to its inherent accumulative integral error, inertial navigation is ...
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