上海交通大学学报

上海交通大学学报（自然版） ›› 2014, Vol. 48 ›› Issue (04): 538-543.

• 交通运输 • 上一篇    下一篇

惯性导航系统极区导航参数解算方法

刘文超1，卞鸿巍1，王荣颖1，岳亚洲2
  

  1. (1. 海军工程大学 电气工程学院， 武汉 430033；2. 飞行器控制一体化技术国防科技重点实验室， 西安 710065)
     
      
     
  • 收稿日期:2013-07-08
  • 基金资助:

    航空科学基金（30771245）,海军工程大学自然科学基金（HGDQNJJ12029）资助项目

A Calculating Method of Polar Navigation Parameters for Inertial Navigation System

LIU Wenchao1,BIAN Hongwei1,WANG Rongying1,YUE Yazhou2
  

  1. (1. College of Electrical Engineering, Naval University of Engineering, Wuhan 430033, China;2. National Key Laboratory of Science and Technology on Aircraft Control, Xian’an 710065, China)
     
  • Received:2013-07-08

摘要：

针对惯性导航系统（INS）极区航向、速度误差增大和大圆航线航向角快速改变的问题，提出了一种
INS极区导航参数解算方法.首先研究了极区INS误差抑制机制，构建了椭球面栅格航向基准模型，然后利用INS解算的导航参数信息，实现了栅格航向和栅格速度解算，最后完成了极区导航参数导航性能评估.理论分析和仿真结果表明，该方法计算简单，解算的导航参数有利于极区航行监控和航行绘算；栅格航向和速度精度明显优于地理航向和速度精度，可以满足极区载体航行需求，提高了INS极区导航性能.


 
 

关键词: 惯性导航系统, 极区导航, 误差抑制, 栅格航向, 误差分析

Abstract:

To solve the problems that heading error and velocity error of inertial navigation system (INS) increase and the heading angle of the great circle route changes rapidly in polar regions, a calculating method of polar navigation parameters for INS was proposed. First, the polar heading error restraint mechanism was studied and a ellipsoid grid heading reference model was built. Then, the calculating of grid heading and grid velocity was implemented using the calculating navigation parameter information of INS. Finally, the polar navigation performance evaluation of the method was completed. Theoretical analysis and simulation results show that the calculating  method is simple, the calculating navigation parameters  are conducive to polar sailing monitoring and plotting, and the precision of grid heading and velocity is superior to that of the geographic heading and velocity, which illustrates that the method could meet the requirement of polar navigation and improve the polar navigation performance of the inertial navigation system.
 

Key words: inertial navigation system(INS), polar navigation, error restraint, grid heading, error analysis

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