单词 | pulse-coded scanning beam |
释义 | pulse-coded scanning beam [`pǝls ¦kōd·ǝd `skan·iŋ ´bēm] NAVIGATION 1. A radio or radar beam which is swept over a sector of space and is accompanied by a repeated pattern of pulses that is varied to indicate the position of the beam in space. 2. A system of ground equipment that generates such beams at microwave frequencies to furnish guidance to aircraft making microwave landings. Abbreviated PCSB. |
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