Maneuvering-Deceleration Guidance Algorithm Based on Atmosphere Estimation for Reentry Vehicle

doi:10.3969/j.issn.1000-1093.2013.09.006

Abstract

Abstract:

A new maneuvering-deceleration guidance algorithm based on atmosphere estimation is presented for the precise guidance and velocity control of hypersonic reentry vehicle. The maneuvering-deceleration guidance command is composed of optimal guidance command and deceleration command. The optimal guidance command is obtained by guidance law with position and impact angle constraints. Sinusoid aneuvering-deceleration command is used to minimize the position disturbance caused by deceleration. And the parameters of maneuvering command are produced from mismatch between terminal predicted velocity and nominal-velocity by numerical integration method. The atmosphere parameter identification technology is also used to improve the prediction precision. The simulation results show that the maneuvering-deceleration guidance algorithm has strong robustness against uncertain conditions; it can accomplish the integrated design of precise guidance and deceleration control efficiently.

Key words: control and navigation technology of aerocraft, reentry vehicle, maneuverable target, precision guidance, deceleration control, atmosphere estimation

CLC Number:

V412. 4

LI Qiang, XIA Qun-li, HE Jing,WEN Qiu-qiu. Maneuvering-Deceleration Guidance Algorithm Based on Atmosphere Estimation for Reentry Vehicle[J]. Acta Armamentarii, 2013, 34(9): 1091-1096.

References

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