An improved proportional navigation guidance law for waypoint navigation of airships

Abstract

This article derives an improved proportional navigation guidance law by using the extended gain scheduling law, which can be used in the nonlinear six-degree of freedom (6DOF) model of an airship directly, in which the airship equations of motion based on the Lagrangian approach. Nonlinear simulations for different conditions are performed, including the effect of the wind, and results are discussed. The simulation experiments indicate that, compared with the previous one, the modified guidance law which is used in specific waypoints tracking has better robust and tracking accuracy.