OVERVIEW: A Directed Infrared Countermeasure (DIRCM) system is an active self-protection suite designed to detect and defeat incoming infrared-guided missiles by directing high-intensity modulated infrared energy at the seeker. It provides enhanced survivability for aircraft against MANPADS and heat-seeking threats.

GENERAL DESCRIPTION: DIRCM systems combine missile warning sensors with a high-speed tracking turret and modulated IR laser emitter to jam or confuse the seeker head of incoming infrared-guided missiles. Unlike passive flares, DIRCM provides continuous, targeted jamming and is effective against advanced seeker types, including those resistant to traditional decoys. Typically installed on high-value assets such as transport aircraft, helicopters, or VIP platforms, DIRCM systems are a critical evolution in aircraft survivability, often integrated with broader self-protection suites (SPS).

ROLE SUMMARY:
Category: Defensive Aids / Infrared Countermeasures
Primary Use: Protection against IR-guided missile threats
Function: Active detection, tracking, and jamming of missile seekers
Platform: Rotary- and fixed-wing aircraft, including transport, VIP, and special mission platforms
Integration: Works with Missile Warning Systems (MWS) and other ECM components

SPECIFICATIONS:
Type: Directed Infrared Countermeasure (DIRCM)

See Specific information under [Sensors/EW] section.

SOURCE:
Leonardo, Elbit Systems, Northrop Grumman DIRCM product brochures
https://en.wikipedia.org/wiki/Directional_infrared_counter_measure