OVERVIEW: Advanced Infrared Search and Track (IRST) systems provide high-resolution multi-spectral imaging with integrated air-to-air weapon fire control (AAW FC) data generation for precise targeting and engagement.

GENERAL DESCRIPTION: These advanced IRST systems combine state-of-the-art infrared focal plane arrays, multi-band detection (MWIR and LWIR), and sophisticated onboard processing capable of generating real-time fire control quality tracking data. Deployed on 4th and 5th generation fighter aircraft and naval platforms since the 2010s, they enable passive, stealthy target acquisition and targeting without radar emissions. Integration with weapons systems allows direct cueing for air-to-air missiles, enhancing engagement capabilities in contested and radar-denied environments.

ROLE SUMMARY:
Category: Passive Multi-Spectral Infrared Imaging with Fire Control
Primary Use: Target detection, tracking, identification, and generation of weapon fire control data for air-to-air combat
Function: High-precision passive tracking and targeting data generation
Platform: Modern fighter aircraft, maritime patrol aircraft, surface combatants
Integration: Integrated with radar, EW systems, and missile fire control systems

See Specific information under [Sensors/EW] and [Properties] sections.

SOURCE:
Defense Technical Information Center (DTIC)
https://en.wikipedia.org/wiki/Infrared_search_and_track