| 单词 |
plan position indicator |
| 释义 |
plan position indicator
plan position indicatorA cathode ray tube on which radar returns are so displayed as to bear the same relationship to the transmitter as the objects giving rise to them.
plan position indicator
plan position indicator[′plan pə′zish·ən ′in·də‚kād·ər] (electronics) A radarscope display in which echoes from various targets appear as bright spots at the same locations as they would on a circular map of the area being scanned, the radar antenna being at the center of the map. Abbreviated PPI. Also known as P display. plan position indicator (PPI) A cathode-ray tube (CRT) on which radar returns are displayed. The returns on the PPI are oriented relative to the transmitter.AcronymsSeePPI |
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