NRL's PPI radar display

Autor:

US Naval Research Laboratory

Credit:

http://www.nrl.navy.mil/accomplishments/systems/naval-radar-systems/

Krótki link:

https://plwiki.pl/b/a5b

źródło:

Wikimedia Commons

Wymiary:

242 x 265 Pixel (22798 Bytes)

Opis:

The PPI radar display as originated by NRL. The PPI is now user worldwide in detection, navigation, air traffic control, and object identification radar systems.

Licencja:

Public domain