J/APG-1 AESA radar

E479497

active electronically scanned array radar airborne fire-control radar

The J/APG-1 is an advanced Japanese active electronically scanned array (AESA) fire-control radar developed for modern fighter aircraft, offering high-resolution tracking, multi-target engagement, and improved resistance to jamming.

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All labels observed (3)

Label	Occurrences
J/APG-1 AESA radar canonical	1
J/APG-1 active electronically scanned array radar (on resulting F-2)	1
J/APG-2 AESA radar	1

How this entity was disambiguated

This entity first appeared as the object of triple T4910408 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: J/APG-1 AESA radar
Context triple: [Mitsubishi F-2, radar, J/APG-1 AESA radar]

A. AN/APG-77 AESA radar
The AN/APG-77 is an advanced active electronically scanned array (AESA) radar system designed to give the F-22 Raptor superior long-range detection, tracking, and low-probability-of-intercept capabilities.
B. AN/APY-2 radar
The AN/APY-2 radar is an advanced airborne early warning and control (AEW&C) radar system designed to provide long-range surveillance, tracking, and battle management capabilities.
C. Hughes AN/APG-65 radar
The Hughes AN/APG-65 is a multimode, pulse-Doppler fire-control radar system widely used in modern fighter aircraft such as the F/A-18 Hornet for air-to-air and air-to-ground missions.
D. AN/TPY-2 radar
The AN/TPY-2 radar is a high-resolution, X-band, phased-array missile defense radar used for detecting, tracking, and discriminating ballistic missile threats.
E. AN/MPQ-53 radar
The AN/MPQ-53 is a multifunction, phased-array fire control radar used to detect, track, and guide interceptors against aircraft and missile threats in the Patriot air defense system.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: J/APG-1 AESA radar
Target entity description: The J/APG-1 is an advanced Japanese active electronically scanned array (AESA) fire-control radar developed for modern fighter aircraft, offering high-resolution tracking, multi-target engagement, and improved resistance to jamming.

A. AN/APG-77 AESA radar
The AN/APG-77 is an advanced active electronically scanned array (AESA) radar system designed to give the F-22 Raptor superior long-range detection, tracking, and low-probability-of-intercept capabilities.
B. AN/APY-2 radar
The AN/APY-2 radar is an advanced airborne early warning and control (AEW&C) radar system designed to provide long-range surveillance, tracking, and battle management capabilities.
C. Hughes AN/APG-65 radar
The Hughes AN/APG-65 is a multimode, pulse-Doppler fire-control radar system widely used in modern fighter aircraft such as the F/A-18 Hornet for air-to-air and air-to-ground missions.
D. AN/TPY-2 radar
The AN/TPY-2 radar is a high-resolution, X-band, phased-array missile defense radar used for detecting, tracking, and discriminating ballistic missile threats.
E. AN/MPQ-53 radar
The AN/MPQ-53 is a multifunction, phased-array fire control radar used to detect, track, and guide interceptors against aircraft and missile threats in the Patriot air defense system.
F. None of above. chosen

Statements (45)

Predicate	Object
instanceOf	active electronically scanned array radar ⓘ airborne fire-control radar ⓘ
application	fighter aircraft fire control ⓘ
associatedWithProgram	FS-X fighter program ⓘ linked to: FS-X
capability	ground mapping ⓘ sea surface search ⓘ simultaneous tracking of multiple targets ⓘ support for advanced air-to-air missiles ⓘ
countryOfOrigin	Japan ⓘ
designedBy	Mitsubishi Electric ⓘ
designedFor	all-weather operation ⓘ beyond-visual-range engagements ⓘ
designGoal	higher detection range compared to earlier Japanese fighter radars ⓘ improved electronic counter-countermeasures performance ⓘ increased reliability and lower maintenance compared to mechanical radars ⓘ
developedFor	Mitsubishi F-2 ⓘ
developmentStatus	operational ⓘ
feature	agile beam steering ⓘ high reliability solid-state T/R modules ⓘ high-resolution tracking ⓘ improved resistance to jamming ⓘ look-down/shoot-down capability ⓘ low sidelobe levels ⓘ multi-target engagement ⓘ track-while-scan capability ⓘ
improvesOn	mechanically scanned array radars ⓘ
integration	Mitsubishi F-2 nose radar installation ⓘ
introducedForService	1990s ⓘ
manufacturer	Mitsubishi Electric ⓘ
notableAs	one of the first operational fighter AESA radars ⓘ
operator	Japan Air Self-Defense Force ⓘ
partOf	Mitsubishi F-2 avionics suite ⓘ linked to: Mitsubishi F-2
platform	Mitsubishi F-2A ⓘ linked to: Mitsubishi F-2 Mitsubishi F-2B ⓘ linked to: Mitsubishi F-2
primaryRole	air-to-air target tracking ⓘ air-to-surface targeting ⓘ fire-control ⓘ
purpose	enhanced situational awareness for fighter pilots ⓘ fire-control solution generation ⓘ
radarBand	X-band ⓘ
scanType	electronic scanning ⓘ
successor	J/APG-2 ⓘ
technologyType	AESA ⓘ
usedBy	Japan Air Self-Defense Force ⓘ
user	Japan Air Self-Defense Force ⓘ

How these facts were elicited

Referenced by (3)

Full triples — surface form annotated when it differs from this entity's canonical label.

Mitsubishi F-2 → radar → J/APG-1 AESA radar ⓘ

Mitsubishi F-2 → radar → J/APG-2 AESA radar ⓘ

linked to: J/APG-1 AESA radar

FS-X → radar → J/APG-1 active electronically scanned array radar (on resulting F-2) ⓘ