摘要
该文在一定的假设条件下利用捷联惯导系统的三维误差状态模型求解出了单通道误差状态方程的解析解,列表给出了各误差源对于某一特定误差状态的动态影响。然后利用某型导弹的弹道数据通过对两种误差模型在同一条件下进行仿真的方法验证了单通道误差状态方程解析解的正确性。单通道误差模型对分析各种误差源对系统的影响,确定在满足系统精度要求的条件下主要误差源的选择范围,进行系统精度分配提供了十分方便直观的方法。
In this paper, error state model of strapdown inertial navigation system （SINS） is educed and analytic solution to monochannel error state equation is worked out under the condition of certain hypotheses. The lists of the effect of each error source to a given error status are provided when SINS is in the state of moving. The correctness of analytic solution to monochannel error state equation is validated by the means of two error models＇simulation excerpting the same actual trajectory data of a certain type missile. Monochannel error model gives a convenient and intuitionistic way to analyze the effect of all kinds of error sources to the system, delimit the selective range of main error source which can meet the requirement of the system accuracy and allot system accuracy.
出处
《计算机仿真》
CSCD
2005年第11期42-45,共4页
Computer Simulation
关键词
捷联
误差模型
误差分析
Strapdown
Error model
Error analysis
