Gradually being deployed worldwide, ADS-B improves upon the radar-based systems that air traffic controllers and pilots rely on to find out the location and velocity of aircraft in their vicinity.

随着ADS - B在全球范围的使用，它改进了空管人员和飞行员用于确定附近飞机位置和速度的雷达系统。

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Like any other flight, the small commuter airliner will respond to instructions from air-traffic controllers, navigate a path and take care to avoid other aircraft.

与其他班机一样，这架小型通勤客机将会根据空中交通管制员的指示，沿着一条航路飞行，注意避开其他飞机。

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They had no direct radio link with aircraft but used telephones to stay in touch with airline dispatchers, airway radio operators, and airport traffic controllers.

他们不与飞机建立直接的无线电联络，而是同航空公司签派员、航路电台工作人员和机场管制员保持联系。

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Many aircraft also have satellite phones that controllers can call.

WSJ: How New Air-Traffic Control Systems Operate Over Oceans

Low cost airlines like easyJet, Ryanair and Go are buying new aircraft and adding new flights faster than controllers can be found to handle them.

BBC: The future of flying

Radar, or radio waves, sweep the sky every 12 seconds transmitting images of approaching aircraft that can then be viewed by controllers onscreen in a series of centers spanning the nation.

FORBES: Magazine Article