The radar, called synthetic aperture radar or SAR, is meant to complement a global satellite system that listens for electronic emergency beacons sent by wrecked planes or people in distress.

这个雷达系统，被称为合成孔径雷达或简称SAR，是用来弥补全球卫星定位系统的。卫星系统监听失事飞机或者被困人员所发出的紧急呼叫信号。

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Beidou is China's first global navigation satellite system.

北斗卫星导航系统是中国第一个全球卫星导航系统。

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China is to contribute to a new global satellite navigation system being developed by European nations.

中国要捐助欧洲国家正在开发的全新的全球卫星定位系统。

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Unveiled at IFA in Berlin, the Russian Mobile Operating System or RoMOS reportedly mimics the look and feel of Android and works with Russia's Global Navigation Satellite System.

ENGADGET: RoMOS is Russia's take on Android OS, shields users from Google's prying eyes

Finally, the U.S. and Australia have agreed to partner in the deployment of the Wideband Global Satellite Communications system (WGS).

CENTERFORSECURITYPOLICY: China��s assymetrical strategy

The report calls for accelerating the use of the global positioning satellite system (GPS) in U.S. airspace and ultimately linking GPS and the air traffic control system to provide better and safer separation for planes flying in the United States.

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