Fenghua He

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—The problem of observer design for Lipschitz nonlinear systems is considered. A new dynamic framework which is a generalization of previously used Lipschitz observers is introduced and the generalized sufficient condition that ensures asymptotic convergence of the state estimates is presented. The equivalence between this condition and an H optimal control(More)
This paper considers a networked evolutionary game. According to strategy updating rules, a method is proposed to calculate the dynamics of the profile, which is expressed as a k-valued logical dynamic network. This dynamic model is then used as a framework to analyze the dynamic behaviors, such as emergence etc., of the networked evolutionary game. To(More)
This paper investigates a dynamic target-assignment problem. A close-loop integrated frame for target-assignment is proposed novelly which incorporates the kinematics between flight vehicles and targets. Based on an integral performance index which represents the energy cost, the optimal switching assignmentplan is obtained. Considering the configuration(More)
A gyrowheel (GW) is a kind of electronic electric-mechanical servo system, which can be applied to a spacecraft attitude control system (ACS) as both an actuator and a sensor simultaneously. In order to solve the problem of two-dimensional spacecraft angular rate sensing as a GW outputting three-dimensional control torque, this paper proposed a method of an(More)
—Motivated by the attitude control of missiles, we consider the tracking problem of nonlinear systems via control with finite admissible values. First, the Fliess functional expansion is used to describe the outputs. Using piecewise admissible value control and the quadratic criteria, the optimal control is obtained. Then for certain model uncertainties,(More)
This paper proposes two kinds of approaches of angular rate sensing for micro-spacecraft with a gyrowheel (GW), which can combine attitude sensing with attitude control into one single device to achieve a compact micro-spacecraft design. In this implementation, during the three-dimensional attitude control torques being produced, two-dimensional spacecraft(More)