Lateral Predictive Guidance for Mars Atmospheric Entry

Abstract

The state-of-the-art Mars atmospheric entry predictive guidance method focuses on dealing with the longitudinal motion, while the lateral motion is always regulated by the error threshold with bank angle reversal. Such lateral logic strictly limits the lateral motion. In view of this problem, a lateral predictive guidance method for Mars atmospheric entry is put forward, in which the guidance command is generated on board according to the constraints of lateral motion without planning the error threshold. Such a method can avoid the problem of reversing frequently in the method of planning relevant threshold. Numerical simulation illustrates that the lateral predictive guidance method can satisfy the position accuracy of parachute deployment. At the same time, it can also achieve the design flexibility of entry trajectory lateral motion.

Keywords

Mars atmospheric entry / predictive guidance / lateral motion

References

[1] 崔平远,乔栋,朱圣英,等. 行星着陆探测中的动力学与控制研究进展[J]. 航天器环境工程,2014,31(01):1-8.Cui P Y,Qiao D,Zhu S Y,et al. Research progress of dynamics and control for planetary landing[J]. Spacecraft Environment Engineering,2014,31(01):1-8.
[2] Mendeck G F,Mcgrew L C. Entry guidance design and postflight performance for 2011 Mars science laboratory mission[J]. Journal of Spacecraft & Rockets,2014,51(4):1094-1105.
[3] 崔平远,胡海静,朱圣英. 火星精确着陆制导问题分析与展望[J]. 宇航学报,2014,35(3):245-253.Cui P Y,Hu H J,Zhu S Y. Analysis and prospect of guidance aspects for mars precision landing[J]. Journal of Astronautics,2014,35(3):245-253.
[4] Lu P. Entry guidance:A unified method[J]. Journal of Guidance,Control,and Dynamics,2014,37(3):713-728.
[5] Kluever C. Entry guidance performance for Mars precision landing[J]. Journal of Guidance,Control,and Dynamics,2008,31(6):1537-1544.
[6] 夏元清,沈刚辉,孙浩然,等. 火星探测器进入段预测校正制导方法[J]. 深空探测学报,2015,2(4):338-344.Xia Y Q,Shen G H,Sun H R,et al. Mars entry guidance based on predicted corrector algorithm[J]. Journal of Deep Space Exploration,2015,2(4):338-344.
[7] 赵振华,杨俊,李世华,等. 基于阻力跟踪的火星大气进入段非线性预测制导律设计[J]. 深空探测学报,2015,2(2):137-143.Zhao Z H,Yang J,Li S H,et al. Drag-based nonlinear predictive guidance law for mars entry[J]. Journal of Deep Space Exploration,2015,2(2):137-143.
[8] Kozynchenko A I. Analysis of predictive entry guidance for a Mars lander under high model uncertainties[J]. Acta Astronautica,2011(68):121-132.
[9] Brunner C W,Lu P. Skip entry trajectory planning and guidance[J]. Journal of Guidance,Control,and Dynamics,2008,31(5):1210-1219.
[10] Lu P. Predictor-corrector entry guidance for low-lifting vehicles[J]. Journal of Guidance,Control,and Dynamics,2008,31(4):1067-1075.
[11] Yu Z S,Cui P Y,Zhu S Y. Observability-based beacon configuration optimization for Mars entry navigation[J]. Journal of Guidance Control and Dynamics,2015,38(4):643-650.
[12] Yu Z S,Cui P Y,Zhu S Y. On the observability of Mars entry navigation using radiometric measurements[J]. Advances in Space Research,2014,54(8):1513-1524.
[13] Vinh N X,Busemann A,Culp R D. Hypersonic and planetary entry flight mechanics[M]. Michigan:The University of Michigan Press,1980.
[14] Press H W,Teukolsky A S,Vetterling T W,et al. Numerical recipes:the art of science computing(Third Edition)[M]. Cambridge:Cambridge University Press,2007.