Infrared Countermeasure - Directional IRCM

Directional IRCM

DIRCM, or Directional Infrared Countermeasures, avoid this potential drawback by mounting the energy source on a movable turret (much like a FLIR turret). They only operate when cued by a missile warning system of a missile launch, and use the missile plume to accurately aim at the missile seeker. The modulated signal can then be directed at the seeker, and the modulation scheme can be cycled to try to defeat a variety of seekers. Countermeasure success depend on threat's tracking techniques and requires threats' analysis capabilities. Defeating advanced tracking systems requires a higher level of DIRCM power. Issues of Laser Safety are also taken into account.

Israel has announced a program to develop a system called Multi Spectral Infrared Countermeasure (MUSIC) that will similarly use active lasers instead of flares to protect civilian aircraft against MANPADs. The US Army is deploying a similar system to protect its helicopters.

Department of the Navy Large Aircraft Countermeasures (DoN LAIRCM) by Northrop Grumman provides infrared threat protection for U.S. Marine Corps CH-53E, CH-46E and CH-53D platforms.

BAE Systems' AN/ALQ-212 advanced threat infrared countermeasures (ATIRCM) - part of a directable infrared countermeasures suite - is fielded on U.S. Army CH-47 Chinook helicopters. The suite provides protection against an array of threats, including all infrared threat bands. The AN/ALQ-212 incorporates one or more infrared jam heads to counter multiple missile attacks.