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Acta Aeronautica et Astronautica Sinica ›› 2023, Vol. 44 ›› Issue (13): 327860-327860.doi: 10.7527/S1000-6893.2022.27860

• Electronics and Electrical Engineering and Control • Previous Articles     Next Articles

A real⁃time in⁃flight wind estimation and prediction method based on deep learning

Rongsheng ZHANG1, Yansheng WU2(), Xudong QIN1, Puzhuo ZHANG1   

  1. 1.Beijing Institute of Astronautical Systems Engineering,Beijing 100076,China
    2.China Aerospace Science and Technology Corporation,Beijing 100048,China
  • Received:2022-07-28 Revised:2022-09-28 Accepted:2022-10-25 Online:2023-07-15 Published:2022-11-04
  • Contact: Yansheng WU E-mail:WuYSh_CASC@163.com

Abstract:

The in-flight wind of launch vehicles is difficult to measure during flight, and the prediction error is great occasionally. In this paper, a real-time in-flight wind estimation and prediction method is proposed based on deep learning. By computing the spatial and temporal distribution of actual measurement data of in-flight wind in past 15 years, we acquire the rule that the wind velocity is higher and the wind direction is concentrated at 270° in winter, which is taken as the basis of sample set generation and wind prediction. Response of flight state to in-flight wind is obtained. Based on the obtained result, a deep neural network is designed to estimate the in-flight wind via the launch vehicle’s flight state. Next, a wind prediction method is proposed based on spatial and temporal distribution of in-flight wind. The rationality of wind prediction via deep learning is also given. We carry out a flight experiment on launch vehicle to verify the accuracy and real-timeliness of the proposed method. The proposed method is feasible for engineering implementation.

Key words: launch vehicle, in-flight wind, deep learning, estimation and prediction, spatial and temporal distribution of in-flight wind

CLC Number: