引用本文:王巍，陈哲.地形辅助导航系统中的数字地图误差模型辨识*[J].控制理论与应用,1996,13(2):223~229.[点击复制]
WANG Wei and CHEN Zhe.Identification of DEM-Related Error Models in Terrain Aided Navigation[J].Control Theory and Technology,1996,13(2):223~229.[点击复制]
地形辅助导航系统中的数字地图误差模型辨识*
Identification of DEM-Related Error Models in Terrain Aided Navigation
摘要点击 1123  全文点击 518  投稿时间：1995-03-23  修订日期：1995-10-30
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DOI编号  
  1996,13(2):223-229
中文关键词  地形辅助导航  卡尔曼滤波  地形随机线性化  模型辨识
英文关键词  terrain-aided navigation  EKF  stochastic linearization  model indentification
基金项目  
作者单位
王巍，陈哲 北京航空航天大学自动控制系 
中文摘要
      地形辅助导航系统在引入量测时便引入了与数字地图有关的误差，含数字地图制作误差及地形随机线性化误差两类．本文在建立系统误差模型的基础上研究了两类误差产生的机理、影响误差的因素、样本获取的手段及误差模型辨识等问题，并采用扩维系统仿真的方法研究了误差的平稳特性、白度、模型参数等特性及其对系统精度的影响，获得了对数字地图误差模型的基本估计．
英文摘要
      When the measurement is introduced into terrain aided navigation system. the DENI (Digital Elevation Map )-Related errors，including DEM-making error and stochastic linearlzation error. are introduced too. In this paper，based on the system modelling，following issues are discussed: ?the production mechanism of DEM-related errors；?the factors influencing these errors: ?the acquirements of the error samples; ④the identification of error models；etc.. By means of the augmented system simulations the smooth performance，whiteness，model parameter estimation，and their influences to system accuracy for these errors are explored. Therefore，the basic evaluation of DEM-related error model has been developed.