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A plan position indicator (PPI) is a type of radar display that represents the radar antenna in the center of the display, with the distance from it and height above ground drawn as concentric circles. As the radar antenna rotates, a radial trace on the PPI sweeps in unison with it about the center point. It is the most common type of radar ...
The PPI display provides a 2-D "all round" display of the airspace around a radar site. The distance out from the center of the display indicates range, and the angle around the display is the azimuth to the target.
The constant altitude plan position indicator, better known as CAPPI, is a radar display which gives a horizontal cross-section of data at constant altitude. It has been developed by McGill University in Montreal by the Stormy Weather Group [1] to circumvent some problems with the PPI: Altitude changing with distance to the radar.
In a typical plan position indicator (PPI) radar with a rotating antenna, this will usually be seen as a "sun" or "sunburst" in the centre of the display as the receiver responds to echoes from dust particles and misguided RF in the waveguide. Adjusting the timing between when the transmitter sends a pulse and when the receiver stage is enabled ...
Plan position indicator (PPI) display showing polar display and radar sweep. A real radar display would show hard terrain features and look recognizably map-like, and from the sea, match well with land features of local nautical charts matching and sending strong clean radar echos back to the ship at sea. Plan position indicator (PPI) display ...
The radar display can either be in a Plan position indicators (PPI) display, or a B-Scope display. The display also has provision for digital geographic map overlay, which allows the target data to be integrated with tactical data for use by ground forces and commanders. Different geographical maps can be overlaid on the radar display.
It was the first Navy radar to use S-band frequencies [2] and the first surface-search radar to be equipped with a plan position indicator (PPI), the ancestor of virtually all modern radar displays. The radar was developed by Raytheon under the guidance of the MIT Radiation Laboratory and Naval Research Laboratory using the cutting-edge ...
AN/APS-115 is a development of AN/APS-80A, [4] and it is the first attempt of digitization by providing digital input into the digital combat system installed on the P-3. . Other improvement over the original AN/APS-80 included the integration of two separate AN/APS-80A radar into a single unit via a single planar position indicator (PPI) disp