惯性导航计算机系统冗余设计

导航计算机系统的可靠性是航行器正常运行的关键。结合导航计算机系统，文章从冗余分类，冗余数目，级别等方面提出设计原则，给出功能模块级双冗余的系统结构和故障监测、模块切换的方法，实践证明，该方法能实现功能模块平稳切换，对导航精度没影响，提高了导航计算机系统的可靠性。

Redundancy Design of INS Computer

In the design of an INS(inertial navigation system)computer,it is necessary to emphasize its reliability.In this paper,redundancy design technique is utilized so as to achieve a good and practical design.In the design,two identical modules are used to assure high reliability of the INS computer.The paper discusses how to diagnose faults,how to isolate the faults and how to reconfigure STD board,so as to make it functions smoothly without interruption.Practics shows that the system stability,control accuracy and reliability of the INS computer are satisfactory.