基于惯性技术的风洞试验模型大迎角测量架构  

Measurements Architecture of Wind Tunnel Model Large Attack Angle Using Inertial Sensors

作　　者：谭强俊 程永生[1] 唐彬[1] 刘显学[1] 周浩[1] 李寅鑫[1] TAN Qiangjun;CHENG Yongsheng;TANG Bin;LIU Xianxue;ZHOU Hao;LI Yinxin(Institute of Electronic Engineering, China Academy of Engineering Physics, Mianyang 621000, China)

机构地区：[1]中国工程物理研究院电子工程研究所,四川绵阳621000

出　　处：《探测与控制学报》2021年第1期95-101,共7页Journal of Detection & Control

摘　　要：针对大迎角测姿时现有加速度计测量架构对姿态信息利用不足,以及现有杆臂处理算法残差过大的问题,提出了一种基于惯性技术的3加速度计加1陀螺仪的系统架构。该架构改进了力学编排方式,在静态条件下有效提高了大迎角测姿精度。在动态条件下基于频率阈值判决的离心加速度补偿算法能有效去除杆臂效应离心加速度项;同时双加速度计的系统构型能有效避免杆臂效应切向加速度项的误差放大。转台实验验证结果表明,静态环境下大迎角测姿精度可达到0.006°,动态环境下大迎角测姿精度可达到0.12°,有效改善了动态环境下大迎角的测姿精度。For the insufficient utilization of the attitude information by existing accelerometer measurement architecture during the large angle of attack measurement,and the excessive residual error of the existing lever arm processing algorithm,a system architecture of three accelerometers plus one gyroscope based on inertial technology was proposed.The improved mechanics arrangement method adopted in this system architecture could effectively improve the accuracy of the accelerometer-based attitude measurement under large angle of attack conditions;the centrifugal acceleration compensation algorithm based on the frequency threshold judgment could effectively remove the centrifugal acceleration term of the lever arm effect;the dual accelerometer configuration could effectively avoid the error amplification of the tangential acceleration term of the lever arm effect.The results of turntable experiment showed that the accuracy of large angle attitude measurement in a static environment can reach 0.006°and that in dynamic environment could reach 0.12°,which effectively improved the accuracy of large-angle attitude measurement in a dynamic environment.

关 键 词：杆臂效应 多加速度计 低通滤波 力学补偿 离心加速度 切向加速度 

分 类 号：U666.1[交通运输工程—船舶及航道工程]