–A flight path rate demand modified three-loop lateral missile autopilot design methodology for a class of guided missile, based on state feedback, output feedback, reduced order Das & Ghosal observer (DGO) is proposed. The open loop undamped model of three-loop autopilot has been stabilized by using pole placement and state feedback. The non-minimum phase feature of rear controlled missile air...

– A flight path rate demand modified two-loop lateral missile autopilot design methodology for a class of rear controlled guided missile, based on state feedback, output feedback, reduced order Das & Ghosal observer (DGO) and PI controller is proposed. The open loop undamped model of two-loop autopilot has been stabilized by using pole placement and state feedback. The non-minimum phase feature...

This paper describes the application of Lyapunov stability theory to automatic steering of ships. The motivation for using nonlinear control theory is that nonlinearities can be compensated for in a systematic manner. For instance, this allows the designer to design the autopilot system for a ship described by the nonlinear models of Norrbin (1963) and Bech and Wagner Smith (1969) both utilizin...

BACKGROUND Eye tracking is an accurate and objective means of measuring an instrument scan pattern. The purpose of this study was to determine if prior aircraft experience, phase of flight, and autopilot mode modified the instrument scan pattern of F-117A pilots. METHODS There were 23 F-117A pilots, grouped by prior aircraft experience, who flew an instrument approach manually and with autopi...

The main goal here is to design a proper and efficient controller for a ship autopilot based on the sliding mode control method. A hydrodynamic numerical model of CyberShip II including wave effects is applied to simulate the ship autopilot system by using time domain analysis. To compare the results similar research was conducted with the PD controller, which was adapted to the autopilot syste...

The optimisation by Genetic Algorithm (GA) of a non-linear autopilot for ship course changing is studied in this paper. The theory of the optimisation technique is presented from its basis in Darwinian evolution to the development of the form of optimisation algorithm used in the application. This application involves a Sliding Mode (SM) controller for use as a course changing autopilot for a s...

In this research we consider the problem of path following control for a small fixedwing unmanned aerial vehicle (UAV). Assuming the UAV is equipped with an autopilot for low level control, we adopt a kinematic error model with respect to the moving Serret-Frenet frame attached to a path for tracking controller design. A kinematic path following control law that commands heading rate is present...

Ship autopilots can be divided into conventional, only capable of maintaining a given heading, and advanced, which additionally follow „track” connecting the navigation points along ship’s route. The article presents structure prototype autopilot ship implemented in CPDev environment formulas allowing to determine settings course controller (PID) track (PI) cascade control. For each them, indiv...

With unmanned aerial vehicles (UAVs), 36 licensed pilots flew both single-UAV and dual-UAV simulated military missions. Pilots were required to navigate each UAV through a series of mission legs in one of the following three conditions: a baseline condition, an auditory autoalert condition, and an autopilot condition. Pilots were responsible for (a) mission completion, (b) target search, and (c...