plan position indicator


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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)

plan position indicator (PPI)click for a larger image
A cathode-ray tube (CRT) on which radar returns are displayed. The returns on the PPI are oriented relative to the transmitter.
References in periodicals archive ?
Reconstructed wind speed and direction (HWS and HWD) measurements for each of the LiDARs used individually, and based on averaged horizontal readings at 10-minute intervals from the Scanning LiDARs Plan Position Indicator (PPI) scans, were compared to IEC compliant cup wind speeds and vane wind directions read from a conventional mast anemometer at the top of a 100-metre mast.
RadarView receives, processes and scan converts multiple channels of radar video in normal PPI (plan position indicator) view, and, for more specialist requirements, and also supports B-Scan and A-Scan formats, and the latter is especially useful for radar configuration and set-up.