Optimization of Reconstruction Model for Gravity Anomaly along Glide Trajectory

doi:10.3969/j.issn.1000-1093.2018.12.011

Acta Armamentarii ›› 2018, Vol. 39 ›› Issue (12): 2371-2379.doi: 10.3969/j.issn.1000-1093.2018.12.011

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Optimization of Reconstruction Model for Gravity Anomaly along Glide Trajectory

ZHOU Huan¹, DING Zhi-jian², ZHENG Wei³

(1.Institute of System Engineering, China Academy of Engineering Physics, Mianyang 621999，Sichuan, China;2.China Aerodynamics Research and Development Center, Mianyang 621000，Sichuan, China;3.College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073，Hunan, China)

Received:2018-01-10 Revised:2018-01-10 Online:2019-01-31

Abstract

Abstract: A fast computation scheme and its reconstruction model for the gravity anomaly along glide trajectories of a hypersonic vehicle are initially proposed. An optimization algorithm for the reconstruction model based on multi-island genetic algorithm is developed. To reduce the computational scale of optimization, an agent model is established based on the optimal Latin hypercube method and radial basis function (RBF) neural networks. Simulations indicate that the proposed reconstruction model possesses enough adaptability for the multiple case of involving several no-fly zones. Considering the capability limitation of onboard computer, the trajectory precision can be enhanced effectively by employing this model. Based on the proposed optimization algorithm, the model with a lightest memory burden on the trajectory precision requirement and the model with a highest trajectory precision on the memory size requirement are both achieved. Key

Key words: glidetrajectory, gravityanomaly, extensionapproximation, agentmodel, multi-islandgeneticalgorithm

CLC Number:

V412.4⁺2

ZHOU Huan, DING Zhi-jian, ZHENG Wei. Optimization of Reconstruction Model for Gravity Anomaly along Glide Trajectory[J]. Acta Armamentarii, 2018, 39(12): 2371-2379.

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第39卷第12期
2018 年12月兵工学报ACTA
ARMAMENTARIIVol.39No.12Dec.2018

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Optimization of Reconstruction Model for Gravity Anomaly along Glide Trajectory

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