A fixed device that sends or receives, amplifies, alters, and returns a radar signal, permitting a distantreceiver to determine its bearing and sometimes its range.
一种发射、接收、放大、改变并返回雷达讯号的固定装置,允许远处的接收者测定它的情况,有时还有范围。
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They are even collaborating with a group in China that will launch a satellite in 2016 which should be able to bounce light waves from a sender on one part of the Earth to distantreceiver elsewhere.