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Satellite applications, including earth observation, communications and broadcasting, navigation and positioning.

对地观测、通信广播、导航定位等卫星应用。

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The road-mobile variant might have a lower accuracy but this can be improved by adding satellite navigation and positioning capability such as GPS or GLONASS to the launch platform.

公路-机动型可能精度较低，但是能通过增加卫星导航和部署能力来改进，像通过美国的全球定位系统（GPS）或俄罗斯的全球轨道导航卫星系统（GLONASS）部署到发射平台。

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Each onboard ADS-B set consists of a Global Positioning System satellite navigation unit, two Pentium microprocessors, some software and a radio transmitter-receiver--not much more gear than you would find behind the dash of a new Cadillac.

FORBES: Free flight

She said that US diplomats and scientists should ensure that the Global Positioning System should become the world's standard satellite navigation system.

BBC: Albright marries science and diplomacy

We questioned the starry-eyed revenue and expense forecasts for Galileo, a European satellite navigation venture designed to compete with the U.S.' Global Positioning System.

FORBES