请输入您要查询的字词:

 

单词 satellite navigation system
释义
satellite navigation system

Electronics and Electrical Engineering
  • A navigation system that makes use of a constellation of satellites in low earth orbit, each emitting carefully timed signals. A ground-based receiver can determine its location on earth to a high degree of accuracy by carefully measuring the reception times of signals from a number of satellites currently above the horizon. A system with global coverage is known as a global navigation satellite system (GNSS). The most widely used is the GPS system deployed by the USA, but the European Space Agency (ESA) is now deploying its own Galileo system, Russia is developing and deploying GLONASS, and China has the Beidou system.


随便看

 

科学参考收录了60776条科技类词条,基本涵盖了常见科技类参考文献及英语词汇的翻译,是科学学习和研究的有利工具。

 

Copyright © 2000-2023 Sciref.net All Rights Reserved
京ICP备2021023879号 更新时间:2024/12/26 4:48:26