捷联惯导现场最优标定方法研究  

Field Optimal Calibration for Strapdown Inertial Navigation

作　　者：尚捷[1] 顾启泰[1] 

机构地区：[1]清华大学精密仪器与机械学系,北京100084

出　　处：《中国惯性技术学报》2005年第4期18-21,共4页Journal of Chinese Inertial Technology

摘　　要：针对静基座捷联惯导的初始对准和标定,提出了一种基于虚拟噪声的现场最优标定方法,即两步估计法。同多位置对准方法相比,其特点是结构简单、省时、易于实现,既能保持一定的姿态精度,又能大大降低导航和定位误差,特别适用于短时间、低中精度导航系统。In view of the initial alignment and calibration for strapdown inertial navigation systems on stationary base, this paper presents an on-field optimal calibration method based on fictitious noises, i.e. two-step estimation. Compared with the multiposition alignment method, it is characterized by simple structure, less time consumption and easy to implement. This two-step estimation could retain fairly high attitude accuracy, and reduce the navigation and positioning errors significantly, especially suited for shout-time, low and middle precision navigation systems.

关 键 词：捷联惯导 初始对准 标定 最优估计 

分 类 号：U666.1[交通运输工程—船舶及航道工程]