双轴旋转激光捷联惯导系统在线标定技术  

Online Calibration Technology of Two-axis Rotation Laser SINS

作　　者：刘永红[1] 刘明雍[1] 谢波[2] 王海淼[2] 

机构地区：[1]西北工业大学航海学院,陕西西安710072 [2]中国航天科技集团公司第9研究院第16研究所,陕西西安710100

出　　处：《鱼雷技术》2015年第3期218-221,共4页Torpedo Technology

摘　　要：激光捷联惯导系统中陀螺和加速度计误差是影响系统导航精度的关键因素,结合双轴旋转激光捷联惯导系统自身的结构特点,提出了一种以速度误差和位置误差作为量测信息的双轴旋转激光捷联惯导系统在线标定方法,该方法可以在静态及行进等不同状态下完成在线标定。车载试验结果表明,在外场没有试验室标定设备如标定平板、高精度转台的条件下,按文中设计的标定路径及标定方法,可以准确估计出激光陀螺和加速度计的各项误差参数。该标定方法对标定环境、标定设备要求较低,且方法原理简单、易于实现。The errors of gyros and accelerometers are the key factors affecting the precision of navigation of laser strap-down inertial navigation system（SINS）. Based on the framework feature of two-axis rotation laser SINS, an online calibration method was proposed in this study by taking velocity and position errors as measurement information. This method can implement online calibration when the laser SINS are in both stable and moving conditions. Vehicle-borne test indicates that the error parameters of laser gyros and accelerometers can be calibrated precisely with the proposed calibration method and calibration route in the case without calibration devices such as the calibration fiat and precise turntable. This calibration method is simple in principle and implementation, and does not require strict conditions for environment and equipment.

关 键 词：激光捷联惯导系统 在线标定 量测信息 标定路径 

分 类 号：TJ630.33[兵器科学与技术—武器系统与运用工程] U666.1[交通运输工程—船舶及航道工程]