Analytical Reentry Guidance Method Based on Lift-to-drag Ratio-velocity Profile

Authors

• Weibo Sun, Control and Simulation Center, Harbin Institute of Technology, Harbin 150080, China; National Key Laboratory of Modeling and Simulation for Complex Systems, Harbin 150080, China; Beijing Institute of Control & Electronic Technology, Beijing 100038, China
• Ping Ma, Control and Simulation Center, Harbin Institute of Technology, Harbin 150080, China; National Key Laboratory of Modeling and Simulation for Complex Systems, Harbin 150080, China
• Yuxuan Wang, National Key Laboratory of Airbased Information Perception and Fusion, Luoyang 471009, China
• Songyan Wang, Control and Simulation Center, Harbin Institute of Technology, Harbin 150080, China; National Key Laboratory of Modeling and Simulation for Complex Systems, Harbin 150080, China
• Tao Chao, Control and Simulation Center, Harbin Institute of Technology, Harbin 150080, China; National Key Laboratory of Modeling and Simulation for Complex Systems, Harbin 150080, China

Abstract

Abstract: An analytical reentry guidance method based on the lift-to-drag ratio and velocity profile was proposed to address the challenges of precise flight time control and prohibited area avoidance for the hypersonic glide flight vehicle during the reentry phase. A reduced-order reentry motion model was established; the Chebyshev series was used to approximate its nonlinear integral terms and differential equations; analytical expressions for the glide trajectory were yielded. The analytical relationships among flight time, remaining range, and the lift-to-drag ratio and velocity profile were derived. The optimization problem of lift-to-drag ratio and velocity profile was converted into a segmented parameter optimization problem for the angle-of-attack and velocity profile. An online update mechanism was designed to adjust the lift-to-drag ratio profile in real time and combined with the adaptive lateral guidance law based on the improved artificial potential field method, to satisfy both flight time and prohibited area constraints while satisfying conventional reentry constraints. Simulation results demonstrate that the proposed method can effectively coordinate the terminal arrival time sequence of multiple flight vehicles and reliably avoid multiple prohibited areas.

Recommended Citation

Sun, Weibo; Ma, Ping; Wang, Yuxuan; Wang, Songyan; and Chao, Tao (2026) "Analytical Reentry Guidance Method Based on Lift-to-drag Ratio-velocity Profile," Journal of System Simulation: Vol. 38: Iss. 3, Article 8.
DOI: 10.16182/j.issn1004731x.joss.25-0855
Available at: https://dc-china-simulation.researchcommons.org/journal/vol38/iss3/8

First Page

651

Last Page

669

CLC

TP448.2

Recommended Citation

Sun Weibo, Ma Ping, Wang Yuxuan, et al. Analytical Reentry Guidance Method Based on Lift-to-drag Ratio-velocity Profile[J]. Journal of System Simulation, 2026, 38(3): 651-669.

Corresponding Author

Chao Tao

DOI

10.16182/j.issn1004731x.joss.25-0855