应用四元数方法对单轴稳定惯导系统的误差分析  

Error Analysis of INS with Single Axis Stabilization by Using Quaternions

作　　者：苏卫东[1] 任思聪[1] 

机构地区：[1]西北工业大学

出　　处：《西北工业大学学报》1998年第3期401-405,共5页Journal of Northwestern Polytechnical University

摘　　要：应用捷联惯导系统分析中简便有效的四元数方法，建立了单轴稳定惯导系统的误差模型，给出了模型中各项的物理意义，仿真验证了该模型的正确性。Quaternions, invented by Hamilton, appear to be the variables of choice in the attitude determination of most practical SINS, and INS(Inertial Navigation System) with single axis stabilization, which can be regarded as a special kind of SINS (Strapdown Inertial Navigation System), is still quite useful in China. In this paper, the error equations of this kind of system, obtained by using quaternions, are presented and their physical interpretation is analyzed. Digital simulation results show that the error model and its analysis are accurate, and the precision of this developing system is also estimated.

关 键 词：单轴稳定 惯导系统 误差模型 四元数方法 

分 类 号：V241.6[航空宇航科学与技术—飞行器设计]