Pseudospectral Model Predictive Control for Exo-atmospheric Guidance

Abstract

This paper suggests applying pseudospectral model predictive method for exo-atmospheric guidance. The method is a fusion of pseudospectral law and model predictive control, in which a two point boundary value problem is formulated using model predictive approach and solved by applying pseudospectral law. In this work, the method is applied to exo-atmospheric guidance with specific target requirement. The existing exo-atmospheric guidance methods suffice general requirements for guidance, but cannot ensure specific target constraints; whereas, the presented method is able to do so. The proposed guidance law is assessed through simulation of perturbed cases, and the tests suggest that the method is able to operate semiautonomously under control and thrust vector perturbations.

Entry Guidance With No-Fly Zone Avoidance Using Linear Pseudospectral Model Predictive Control

“…Based on the linear pseudospectral model predictive control (LPMPC) [18], [19], this paper presents an efficient entry guidance law for no-fly zone avoidance. Firstly, a simple mapping relation of the position of No-fly Zone between the Inertial Frame (IF) and Auxiliary Geographical Frame (AGI) is derived in a geometric manner.…”