A straight forward application of feedback linearization to the missile autopilot design for acceleration control may be limited due to the nonminimum characteristics and the model uncertainties. As a remedy, this paper presents a cascade structure of an acceleration controller based on approximate feedback linearization methodology with a time-delay adaptation scheme. The inner loop controller...

This paper examines closed-loop dynamic soaring by small autonomous aircraft. Wind field estimation, trajectory planning, and path-following control are integrated into a system to enable dynamic soaring. The control architecture is described, performance of components of the architecture is assessed in Monte Carlo simulation, and the trajectory constraints imposed by existing hardware are desc...

a r t i c l e i n f o a b s t r a c t The design of automatic carrier landing system is a crucial technique for carrier-based aircraft, since it facilitates landing of aircraft on carriers in various severe weather conditions, such as low visibility, heavy wind and rough sea conditions, which can hardly be achieved by manual control. In this paper, a novel method of optimizing the control param...

In this paper, the decision parts of a launch rocket—guidance law (GL) and autopilot—are discussed. In the controller design, the differential geometry and sliding mode control are employed. In addition to the individual GL and autopilot system, stability of the integrated guidance/autopilot (G/A) system are discussed. Finally, various simulations are demonstrated to examine the feasibility and...

The vector field method was originally proposed to guide a single fixed-wing Unmanned Aerial Vehicle (UAV) towards desired path. In this work, non-uniform is that changes in both magnitude and direction, for the purpose of achieving formations UAVs. As compared related work literature, formation control law does not need assume absence wind. That is, due effect wind on UAV, one can handle UAV a...

The design of reliable navigation and control systems for Unmanned Aerial Vehicles (UAVs) based only on visual cues and inertial data has many unsolved challenging problems, ranging from hardware and software development to pure control-theoretical issues. This paper addresses these issues by developing and implementing an adaptive visionbased autopilot for navigation and control of small and m...

A new nonlinear predictive control law for a class of multivariable nonlinear systems is presented in this paper. It is shown that the closed-loop dynamics under this nonlinear predictive controller explicitly depend on design parameters (prediction time and control order). The main features of this result are that an explicitly analytical form of the optimal predictive controller is given, on-...

AirGuardian is a complex of an Unmanned Aerial Vehicle and ground station UAV hardware and software systems which has been developed at Obuda University. The hardware and software of the autopilot (AERObot), the antenna tracker station and the ground control station were simultaneously created resulting in the optimal cooperation of the modules. The aim of...

This paper deals with a nonlinear adaptive autopilot design for agile missile systems. In advance of the autopilot design, an investigation of the agile turn maneuver, based on the trajectory optimization, is performed to determine state behaviors during the agile turn phase. This investigation shows that there exist highly nonlinear, rapidly changing dynamics and aerodynamic uncertainties. To ...