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Neural Network-Based Approximation Model for Perturbed Orbit Rendezvous

Author

Listed:
  • Anyi Huang

    (Xi’an Satellite Control Center, Xi’an 710043, China)

  • Shenggang Wu

    (Xi’an Satellite Control Center, Xi’an 710043, China)

Abstract

An approximation of orbit rendezvous is usually used in the global optimization of multi-target rendezvous missions, which can greatly affect the efficiency of optimization process. A fast neural network-based surrogate model is proposed to approximate the optimal velocity increment of perturbed orbit rendezvous in low Earth orbits. According to a dynamic analysis, the initial and target orbits together with the flight time are transformed into a nine-dimensional normalized vector that is used as the input layer of the neural network. An existing approximation method is introduced to quickly generate the training data. In simulations, different numbers of layer nodes and hidden layers are tested to choose the best parameters. The proposed neural network model demonstrates high precision and high efficiency compared with previous approximation methods and neural network models. The mean relative error is less than 1%. Finally, a case of an optimization of a multi-target rendezvous mission is tested to prove the potential application of the neural network model.

Suggested Citation

  • Anyi Huang & Shenggang Wu, 2022. "Neural Network-Based Approximation Model for Perturbed Orbit Rendezvous," Mathematics, MDPI, vol. 10(14), pages 1-11, July.
    • Handle: RePEc:gam:jmathe:v:10:y:2022:i:14:p:2489-:d:865056
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    References listed on IDEAS

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    1. Max Cerf, 2015. "Multiple Space Debris Collecting Mission: Optimal Mission Planning," Journal of Optimization Theory and Applications, Springer, vol. 167(1), pages 195-218, October.
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