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捷联惯性导航系统动静态误差特性分析研究
引用本文:郭俊,熊智,刘建业,黄磊.捷联惯性导航系统动静态误差特性分析研究[J].航空电子技术,2008,39(2).
作者姓名:郭俊  熊智  刘建业  黄磊
作者单位:南京航空航天大学导航研究中心,南京,210016
摘    要:捷联惯性导航系统动静态误差特性是基于惯性的组合导航系统的主要误差来源。为此,根据捷联惯性导航系统的误差状态方程,本文分析了不同动静态情况下的捷联惯导系统的误差漂移特性。针对静基座和动基座的不同特点,分别采用了特征根和基于数值仿真分析的方法,并建立了相应的误差特性分析模型。重点研究了陀螺常值漂移、加速度计零位偏置和随机性误差对惯性导航系统误差漂移特性的影响;全面分析验证了惯性导航系统的动静态误差特性。本文的研究工作将为惯性组合导航系统误差分析建模提供了有益的参考。

关 键 词:捷联惯性导航系统  动静态  误差特性  仿真

Research on Analysis of the Dynamic and Static Error of Strapdown Inertial Navigation System
GUO Jun,XIONG Zhi,LIU Jian-ye,HUANG Lei.Research on Analysis of the Dynamic and Static Error of Strapdown Inertial Navigation System[J].Avionics Technology,2008,39(2).
Authors:GUO Jun  XIONG Zhi  LIU Jian-ye  HUANG Lei
Abstract:The dynamic and static error of the strapdown inertial navigation system is the primary source of the combined navigation error.Based on the error state equation of strapdown inertial navigation system,the dynamic and static error character is investigated in this paper.According to the difference of the dynamic and static state,the method of latent root and simulation based on the values are used respectively,and the relative analysis model of the error property is built.The influence exerted by gyro drift bias,accelerometer bias and random error on the feature of drift error for inertial navigation system are emphatically analyzed;through simulation the error character of the strapdown inertial navigation system is proved.The results of the present study work can give an useful reference to establish the error model of the combined navigation.
Keywords:strapdown inertial navigation system  dynamic and static  error character  simulation
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