大地测量与地球动力学2011，Vol.31Issue(6)：159-163,5.
捷联惯性导航系统重力扰动影响分析
ANALYSIS OF GRAVITY DISTURBANCE INFLUENCE ON STRAPDOWN INERTIAL NAVIGATION SYSTEM
尧颖婷 1沈晓蓉 2邹尧 1季海燕1
作者信息
- 1. 北京航空航天大学自动化科学与电气工程学院,北京100191
- 2. 北京航空航天大学智能交通和控制研究实验室,北京100191
- 折叠
摘要
Abstract
Through the calculation of the gravity disturbance with the EGM2008 spherical harmonic model the gravity disturbance graph of a certain area wasgenerated . Since the model of strapdown inertial navigation error under the condition of gravity disturbance was established, then the influence of the horizontal component of gravity disturbance on the error of strapdown inertial navigation system can be proved by a simulation. The simulation results show that gravity disturbance can cause the velocity and the position error with the Schuler period oscilation, when there is 12.5 × 10-5ms-2 gravity disturbance, it will cause position error of 160 m.关键词
重力扰动/重力球谐模型/捷联惯性导航系统/误差分析/仿真Key words
gravity disturbance/ gravity field spherical harmonic model/ Strapdown Inertial Navigation System/ error analysis/ simulation分类
天文与地球科学引用本文复制引用
尧颖婷,沈晓蓉,邹尧,季海燕..捷联惯性导航系统重力扰动影响分析[J].大地测量与地球动力学,2011,31(6):159-163,5.
