DSpace Arşivi :: by Yazar "Kluever, Craig A." değerine göre listeleniyor

Listeleniyor 1 - 1 / 1

Correction to: Analytical Guidance for Mars Aerocapture via Drag Modulation
(Springer, 2022) Cihan, İbrahim Halil; Kluever, Craig A.
Aerocapture is a maneuver where a spacecraft makes a single pass through a planetary atmosphere, thus using aerodynamic drag to deplete enough energy to establish a captured orbit. A new analytical predictor-corrector guidance algorithm has been developed for the Mars aerocapture problem. This paper presents a drag-modulation method where ballistic coefcient is continuously adjusted in order to control the vehicle during the atmospheric fight phase. An analytical function for velocity during aerocapture serves as the basis for the guidance method, and this expression results in a closed-form control law for ballistic coefcient. Guidance periodically updates the velocity profle so that the correct exit conditions are achieved. The ballistic coefcient control law utilizes the ratio of the measured and reference drag accelerations to improve the targeting accuracy of the guidance scheme. Two diferent apoapsis-targeting scenarios for Mars aerocapture are investigated in this paper. Monte Carlo simulations demonstrate the performance and robustness of the proposed guidance algorithm.