航空兵器Issue(4)：25-29,5.DOI:10.19297/j.cnki.41-1228/tj.2016.04.004
基于条件数理论的高维组合导航系统可观测性分析
Observability Analysis of High Dimensional Integrated Navigation System Based on Theory of Condition Number
摘要
Abstract
In order to improve the error compensation and suppression technology of inertial navigation system, the observability analysis is carried out on the high precision SINS /GPS integrated navigation sys-tem, so as to compensate the system error and improve its navigation accuracy .The extraction observability matrix is obtained by the theory of piece-wise linear constant system , and the condition number of this ma-trix is calculated to analyzing the observability of the system errors under different measurements and ma -neuver mode .For the SINS/GPS integrated navigation system , high dimension model is established , com-plex trajectory is set , and different measurement equations are chosen to compare the observability .Simula-tion results show that adding velocity measurement can obviously improve the observability , and this effect is better than the excitation of maneuver mode .关键词
捷联惯性导航系统/全球定位导航系统/组合导航/分段线性定常理论/条件数/可观测性分析Key words
strapdown inertial navigation system/global positioning system/integrated navigation/piece-wise linear constant system/conditioning number/observability analysis分类
军事科技引用本文复制引用
石静,杨建华,曹晓欢,迪玉茹..基于条件数理论的高维组合导航系统可观测性分析[J].航空兵器,2016,(4):25-29,5.基金项目
航空科学基金项目 （）
