英文缩写卫星定位系统是什么?

－－建立自主的卫星导航定位系统.
This will be achieved by setting up a navigation and positioning satellite group step by step and developing a relevant application system, which will eventually bring into being China's satellite navigation and positioning industry;
分步建立导航定位卫星系列,开发卫星导航定位应用系统,初步建成中国的卫星导航定位应用产业.
Doppler positioning by NNSS
卫星多普勒定位
Priority should be given to building information kiosks within easy reach of ordinary people, satellite-positioning (directional) system, giant-screen systems at public places, short-time weather forecast and warning system for small areas as well as (invented) Olympic museum.
重点建设便民信息亭、卫星定位系统、公共场所大屏幕系统、短期精细气象预报/预警系统和虚拟奥林匹克博物馆等.全球定位系统