| 释义 |
ground return
ground returnThe radar reflection from the terrain as displayed and/or recorded as an image.ground return
ground return[′grau̇nd ri‚tərn] (electricity) Use of the earth as the return path for a transmission line. (electromagnetism) An echo received from the ground by an airborne radar set. ground clutter ground returni. The reflection from the ground as displayed and/or recorded as an image. This normally appears as clutter on a radarscope. See ground clutter. ii. In a radio receiver, the direct electrical connection between a circuit or component and the chassis or the earth. |