半捷联惯导系统轴向角度安装误差分析与补偿  

Analysis and Compensation of Installlation Axial Angle Errors of Semi-strapdown IMS

作　　者：张樨[1] 李杰[1] 侯利朋[1] 祝敬德 秦丽[1] 

机构地区：[1]中北大学仪器与电子学院,山西太原030051

出　　处：《兵工学报》2015年第7期1222-1227,共6页Acta Armamentarii

基　　金：国防基础科研计划项目(B3320132012)

摘　　要：针对半捷联惯性测量系统中轴向角度安装误差影响系统姿态测量精度的问题,分析了轴向角度安装误差的来源、产生机理及其对姿态测量精度的影响规律,并从理论上推导了其数学表达式。在此基础上,提出了轴向角度安装误差的分级补偿方法。该方法的核心思想是,根据轴向角度安装误差产生的原理和作用机理不同,依次对其补偿。地面实测试验表明,对轴向角度安装误差的补偿方法是正确和有效的,利用该补偿方法可以将轴向角度安装误差引起的周期性姿态测量误差由0.32°减小到0.05°以内,减小幅度达1个数量级,显著地提高了系统的解算精度。The source and gemeration mechanism of installation axial angle errors of semi-strapdown inertial measurement system（ IMS） and their effects on the attitude measuring accuracy are analyzed,and the mathematical expression of the influence is theoretically derived. A graded compensation method is proposed for error compensation. The proposed method is used to compensate the installation angle errors in turn according to their generation principle and effect mechanism. Experiment based on semi-strapdown IMS verified the validity and effectiveness of the method. Experimental results show that the method can effectively reduce the periodic attitude measuring error caused by installation axial angle errors to0. 05° compared with that of 0. 32°without compensation.

关 键 词：兵器科学与技术 半捷联 惯性测量系统 角度安装误差 分析 补偿 

分 类 号：TJ06[兵器科学与技术—兵器发射理论与技术] TJ013