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Restoration Method for High-frequency Features of Flight Data in the Thrust Vector Control Servo System of Launch Vehicle
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Xilong TUO1, Yingxin ZHAO1, 2, Weiyi HAO1, 2, Peng ZHANG1, 2, Keqin CHEN1, 2
Missiles and Space Vehicles | 2024, 47(2) : 42 - 50
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Missiles and Space Vehicles | 2024, 47(2): 42-50
• Guidance, Navigation and Control •
Restoration Method for High-frequency Features of Flight Data in the Thrust Vector Control Servo System of Launch Vehicle
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Xilong TUO1, Yingxin ZHAO1, 2, Weiyi HAO1, 2, Peng ZHANG1, 2, Keqin CHEN1, 2
Affiliations
  • 1Beijing Institute of Precision Mechatronics and Controls,Beijing,100076
  • 2Innovation Center for Control Actuators,Beijing,100076
Published: 2024-04-25 doi: 10.7654/j.issn.2097-1974.20240206
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In order to solve the issue of missing high-frequency information of flight data in servo system of launch vehicles, a high-frequency feature restoration method based on wavelet multi-resolution analysis is proposed. Initially, features are extracted from ground hot firing test data through wavelet multi-resolution analysis. Subsequently, leveraging the correlation between the angular velocity signal and high-frequency features, a feature matching approach is put forward for predicting the high-frequency features of the flight data. Finally, the linear superposition method is conducted to achieve feature fusion, thus completing the feature restoration process of the flight data. The experimental verification is carried out. It shows that, compared to the baseline data, the restoration results have a consistent commutation frequency pattern, which imply that the proposed feature restoration method is feasible and effective. The study can provide data support for obtaining the characteristics of actual flight profile for aerospace servo products.

feature restoration  /  flight data  /  multi-resolution analysis  /  servo system  /  launch vehicles
Xilong TUO, Yingxin ZHAO, Weiyi HAO, Peng ZHANG, Keqin CHEN. Restoration Method for High-frequency Features of Flight Data in the Thrust Vector Control Servo System of Launch Vehicle[J]. Missiles and Space Vehicles, 2024 , 47 (2) : 42 -50 . DOI: 10.7654/j.issn.2097-1974.20240206
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Year 2024 volume 47 Issue 2
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Article Info
doi: 10.7654/j.issn.2097-1974.20240206
  • Receive Date：2024-03-08
  • Online Date：2025-07-04
  • Published：2024-04-25
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  • Received：2024-03-08
  • Revised：2024-03-21
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    1Beijing Institute of Precision Mechatronics and Controls,Beijing,100076
    2Innovation Center for Control Actuators,Beijing,100076
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表12种不同金属材料的力学参数
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小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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