APG-77


APG-77

Infobox Radar
name = AN/APG-77



caption = AN/APG-77
country = United States
introdate =
number =
type = Solid-state active electronically scanned array (AESA)
frequency =
range =
altitude =
diameter =
azimuth = 120°
elevation =
precision =
power = 12kw peakFact|date=April 2008

The AN/APG-77 is a multifunction radar installed on the F-22 Raptor fighter aircraft. The radar is built by Northrop Grumman.

It is a solid-state, active electronically scanned array (AESA) radar. Composed of 1500 transmit eceive modules, [ [http://www.acq.osd.mil/dsb/reports/hfradar.pdf Hfradar.pdf page 19 for number of modules.] ] each about the size of a gum stick, it can perform a near-instantaneous beam steering (in the order of tens of nanoseconds).

The APG-77 provides 120° field of view in azimuth and elevation. The highest value, which can be achieved for the Field of View (FOV) of a phased array antenna is 120° (60° left and 60° right. 60° up and 60° down). [ [http://www.radartutorial.eu/17.bauteile/bt36.en.html Physical limitation of the maximum swivel angle of an AESA] ]

More than 100 APG-77 AESA radars have been produced to date by Northrop Grumman (on time/ on cost) and much of the technology developed for the APG-77 is being used in the APG-81 radar for the F-35 Lightning II. The APG-77v1 is now in production for the F-22, which includes full air-to-ground functionality (high-resolution synthetic aperture radar mapping, ground moving target indication and track (GMTI/GMTT), automatic cueing and recognition, combat identification, and many other advanced features).

ee also

* Phased array
* Active electronically scanned array

References

External links

* [http://www.f-22raptor.com/af_radar.php AN/APG-77 radar technology explained]
* [http://www.f22fighter.com/radar.htm f22fighter.com: AN/APG-77]
* [http://www.globalsecurity.org/military/systems/aircraft/f-22-avionics.htm]


Wikimedia Foundation. 2010.

Look at other dictionaries:

  • Apg — Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom. {{{image}}}   Sigles d une seule lettre   Sigles de deux lettres > Sigles de trois lettres …   Wikipédia en Français

  • APG II — Saltar a navegación, búsqueda Sistema de clasificación APG II Obtenido de APG II …   Wikipedia Español

  • APG — Saltar a navegación, búsqueda Grupo para la filogenia de las angiospermas Obtenido de APG …   Wikipedia Español

  • APG — is an abbreviation with several different meanings: * Aberdeen Proving Ground a United States Army installation in Aberdeen, Maryland, also **Phillips Army Airfield, the airfield of the above, from its IATA airport code * ABNF Parser Generator, a …   Wikipedia

  • Apg. — Apg. = ↑Apostelgeschichte (2) …   Universal-Lexikon

  • APG-68 — Das AN/APG 68 (JETDS Bezeichnungssystem) ist ein Radarsystem für das Jagdflugzeug F 16C/D Fighting Falcon. Es wird von dem US Konzern Northrop Grumman seit 1988 produziert, wobei bis 2002 über 2.900 Geräte ausgeliefert wurden. Inhaltsverzeichnis… …   Deutsch Wikipedia

  • APG-66 — The AN/APG 66 radar is a solid state medium range (up to 150 km) Pulse doppler radar designed by Westinghouse (now Northrop Grumman) for use in the F 16 Fighting Falcon and in the U.S. Customs and Border Protection s C 550 Cessna Citation and… …   Wikipedia

  • APG II — Classification APG II La classification APG II (2003) est peut être la classification botanique la plus importante aujourd hui. Elle est une modification de la classification APG (1998). La publication est : Angiosperm Phylogeny Group (2003) …   Wikipédia en Français

  • APG-77 — Lockheed Martin F 22 Raptor …   Deutsch Wikipedia

  • APG-81 — Infobox Radar name = AN/APG 81 caption = country = United States introdate = number = type = Solid state active electronically scanned array (AESA) frequency = range = altitude = diameter = azimuth = elevation = precision = power = The AN/APG 81… …   Wikipedia