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 ?
In addition, the SPx scan converter module supports the plan position indicator (PPI) display of selected video inputs, which is then overlaid with graphics symbology.
These modules provide radar video acquisition, clutter processing, cell averaging CFAR (constant false alarm rate) detection, radar video distribution on a local area network (LAN), radar video recording on a local disk, plot extraction, automatic target acquisition, target tracking, radar video plan position indicator display engineering and control interface, and network control.
The SDE-21 Vertical Tactical Workstations installed in the combat information center will have two flat panels - a plan position indicator with a writable surface and an auxiliary display with a touchscreen.