基于自适应横程走廊的再入滑翔飞行器改进预测校正算法

doi:10.12305/j.issn.1001-506X.2024.02.33

Abstract

Abstract:

In view of the problem of the separation of avoidance logic and guidance logic in predictor-corrector guidance algorithm for reentry gliding vehicle (RGV), a fusion algorithm based on adaptive cross-range corridor is proposed. Firstly, the avoidance logic is dynamically introduced, through the intersection relationship between the lateral motion trajectory of the aircraft and the no-fly zone. At the same time, the effective mapping range of the no-fly zone is proposed to quantify the no-fly zone area that affects the flight path. Finally, the adaptive cross-range corridor is designed to dynamically adjust the corridor boundary, control the overturn of the pitch angle, realizing the integration of the avoidance logic and the lateral guidance logic. Simulation results show that the aircraft can achieve effective guidance for different no-fly zones under the method, with certain robustness to reentry disturbance, and have less times of roll angle turnover while ensuring guidance accuracy than the algorithm designed by the separation of guidance logic and avoidance logic.

Key words: predictor-corrector algorithm, adaptive cross-range corridor, effective mapping cross range of no-fly zone

CLC Number:

V448.235

Yangchao HE, Jiong LI, Lei SHAO, Chijun ZHOU, Humin LEI. Improved predictor-corrector algorithm of reentry gliding vehicle based on adaptive cross-range corridor[J]. Systems Engineering and Electronics, 2024, 46(2): 692-702.

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算例	Δφ_f/rad	Δφ_f/rad	Δh_f/km	χ_f/rad	E/km
算例1	-0.016	-0.015	-0.078	0.005	2.420
算例2	0.009	-0.047	0.611	3.138e-4	5.363
算例3	-0.003	-0.039	0.086	-4.987e-5	4.346

规避距离	指标	Δφ_f/(°)	Δφ_f/(°)	Δh_f/km	E/km	F
d=1.6r	横程走廊	-0.003	-0.037	-0.062	4.160	7
d=1.6r	航迹偏差角走廊	-0.028	0.007	-0.063	3.226	8
d=1.7r	横程走廊	-0.017	-0.009	0.116	2.142	7
d=1.7r	航迹偏差角走廊	-0.008	-0.031	0.088	3.596	7
d=1.8r	横程走廊	-0.036	0.026	0.475	4.952	6
d=1.8r	航迹偏差角走廊	-0.027	0.007	0.424	3.067	6
d=1.9r	横程走廊	-0.022	-0.055	1.110	6.722	5
d=1.9r	航迹偏差角走廊	-0.023	-0.036	1.016	4.839	5
d=2.0r	横程走廊	-0.081	0.355	2.260	40.51	4
d=2.0r	航迹偏差角走廊	-0.082	0.305	2.175	35.21	4
由式(42)决定	自适应横程走廊	-0.003	-0.039	0.086	4.346	5

Improved predictor-corrector algorithm of reentry gliding vehicle based on adaptive cross-range corridor

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