Electronic counter-measures
Electronic countermeasures or ECM are any sort of electrical or electronic device designed entirely to "spoof" radar, sonar, or other detection systems. They may be used both offensively or defensively in any method to deny targeting information to an enemy. The system may make there appear to be hundreds of seperate targets, or make the real target appear to dissapear or move about randomly. It is used effectively to protect aircraft from guided missiles. Many Air Forces use them to protect their aircraft from attack.
Offensive ECM often takes the form of jamming. Defensive ECM includes using chaff against air stikes, as well as soids, blip enhancement and jamming of missile terminal homers.
Examples of Dedicated Electronic Countermeasures Aircraft
See also
