Online Identification of Stability Margin Based on Frequency Response Estimation

2018 IEEE CSAA Guidance, Navigation and Control Conference (CGNCC) Pub Date : 2018-08-01 DOI:10.1109/GNCC42960.2018.9019003
Yuhang Wang, Mengyu Liu, Kunfeng Lu, Huiping Zhang, Xingda Xia
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引用次数: 1

Abstract

In order to improve the control performance of the aircraft and achieve on-line control, it is necessary to obtain the stability margin of the system in real time and design online attitude controller. In this paper, the stability margin online identification method is studied. Based on the Chirp-Z transform and frequency response estimation method, excitation signals are added to obtain the system’s stability margin online. Simulation results show that the method proposed has high recognition accuracy and can be applied to real aircraft and used in online controller design.
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基于频响估计的稳定裕度在线辨识
为了提高飞行器的控制性能，实现在线控制，需要实时获取系统的稳定裕度并设计在线姿态控制器。本文研究了稳定裕度在线辨识方法。基于Chirp-Z变换和频响估计方法，加入激励信号，在线获得系统的稳定裕度。仿真结果表明，该方法具有较高的识别精度，可以应用于实际飞机和在线控制器设计。
本文章由计算机程序翻译，如有差异，请以英文原文为准。
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2018 IEEE CSAA Guidance, Navigation and Control Conference (CGNCC)
2018 IEEE CSAA Guidance, Navigation and Control Conference (CGNCC)
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