摘要
激光陀螺旋转调制技术是一种系统级误差自补偿技术,能够有效调制陀螺和加速度计的误差,提高导航系统的精度。首先分析了旋转调制型捷联惯导系统的基本原理和类型,然后从转位方案的编排、惯性测量单元旋转速度和转停时间的选取、旋转机构的导航解算、旋转机构的误差分析、载体角运动隔离等多方面,对激光陀螺旋转调制技术进行了综述,并探讨了我国旋转调制技术的重点研究方向,提出了合理的建议。
Rotation modulation technology of ring laser gyroscope(RLG)is a system-level error self-compensation technique,which can effectively modulate the errors of RLG and accelerometers,and as a result,improve the accuracy of strapdown inertial navigation system(SINS).Firstly,the principles and types of rotation modulation technology is analyzed theoretically in this paper.Then,the arrangement of rotation schemes,the optimization choice of inertial measurement unit(IMU)rotation rate and time,the navigation computation scheme,the analysis of rotation platform errors,the isolation of carrier angular motion are respectively summarized and analyzed.Finally,the reasonable opinion methods and the future developments of rotation modulation technology are also discussed.
作者
雷一非
谢波
李淑英
LEI Yi-fei;XIE Bo;LI Shu-ying(The 16th Institute,China Aerospace Science and Technology Corporation,Xi'an 710100)
出处
《导航与控制》
2019年第6期10-20,54,共12页
Navigation and Control
基金
装备预研航天科技联合基金(编号:6141B06220404)
国家自然科学基金青年科学基金(编号:61701387).
关键词
旋转调制技术
惯性测量单元
激光陀螺
捷联惯性导航系统
rotation modulation technology
inertial measurement unit(IMU)
ring laser gyroscope(RLG)
strapdown inertial navigation system(SINS)
