摘要
半球谐振陀螺作为一种新型固态陀螺,已开始应用于平台惯导系统。从HRG完整误差模型出发,推导其应用于平台惯导系统时的简化误差模型。在此基础上,设计了一种7位置HRG平台惯导系统自标定方法,能够在没有方位基准条件下标定出HRG平台惯导系统包括初始方位角和陀螺安装误差在内的19项误差系数。仿真结果表明,该自标定方法标定时间短,具有较好的精度。
HRG is a new kind of vibratory gyroscope which has been applied in inertial platform. A brief error model which can be adapted to the HRG-based Inertial Platform is derived from HRG＇ s complete error model. Then a new scheme of calibration of the HRG-based Inertial Platform is introduced. By this way, 19 error coeffi- cients of the HRG-Based Inertial Platform can be calibrated without azimuth reference, including the initial azimuth angle and gyros＇ installation error. Simulation results show that the proposed scheme can calibrate error coefficients rapidly with high accuracy.
出处
《科学技术与工程》
北大核心
2013年第28期8356-8359,共4页
Science Technology and Engineering
基金
总装探索研究项目(2010TC4303)资助
