Accurate attitude estimation of HB2 standard model based on QNCF in hypersonic wind tunnel test

作     者：Haotian YANG Bin ZHOU Qi WEI Xiong WANG Xiaobin XU Rong ZHANG Haotian YANG;Bin ZHOU;Qi WEI;Xiong WANG;Xiaobin XU;Rong ZHANG

作者机构：Department of Precision InstrumentTsinghua UniversityBeijing 100084China Xi’an Research Institute of High TechnologyXi’an 710025China Hypervelocity Aerodynamics InstituteChina Aerodynamics Research and Development CenterMianyang 621000China 

出 版 物：《Chinese Journal of Aeronautics》 (中国航空学报（英文版）)

年 卷 期：2020年第33卷第1期

页      面：64-72页

核心收录：

学科分类：080103[工学-流体力学] 08[工学] 080104[工学-工程力学] 0801[工学-力学（可授工学、理学学位）] 

主　　题：Attitude determination MEMS Nonlinear complementary filter Quaternion Wind tunnel test 

摘      要：The accuracy of the HB2 standard model attitude measurement has an important impact on the hypersonic wind tunnel data *** limited size of the model and the existence of external vibrations make it challenging to obtain real-time reliable attitude *** reduce the influence of attitude errors on test results,this paper proposes a Quaternion Nonlinear Complementary Filter(QNCF)attitude determination algorithm based on Microelectromechanical Inertial Measurement Unit(MEMS-IMU).Firstly,the threshold-based PI control strategy is adopted to eliminate noise effect according to the Acceleration Magnitude Detector(AMD).Then,the flexible quaternion method is updated to carry out attitude estimation which is operational and easy to be embedded in the Field Programmable Gate Array(FPGA).Finally,a high-precision three-axis turntable test and a hypersonic wind tunnel test are *** results show that the pitchroll attitude errors are within 0.05°and 0.08°in the high-precision three-axis turntable test in a calculation time of 100 s respectively,and the attitude error is within 0.3°after the elastic angle correction in the hypersonic wind tunnel *** proposed method can provide accurate real-time attitude reference for the analysis of the actual movement of the model,exhibiting certain engineering application value with robustness and simplicity.