电子地图是车载定位定向系统中的重要组成部分。
Electron map is an important part in vehicle position and azimuth determines system.
讨论了一种新型的基于超声波测距的高精度三维定位定向系统的原理与设计。
The principle and design of a high precise 3-D orientation and location system for headpiece and digital glove of virtual reality system are discussed in this paper .
和采用动力调谐陀螺的定位定向系统相比，本系统具有精度高和可靠性好等优点。
Compared with position and azimuth determining system based on dynamically tuned gyroscopes, this new system has higher precision and better reliability.
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