Radar jamming and deception

Radar jamming and deception is a form of <a href="/facts/Electronic_countermeasure/fu0m3qqp">electronic countermeasures</a> (ECMs) that intentionally sends out <a href="/facts/Radio/XFr909M2">radio</a> <a href="/facts/Frequency/QUSbPaW8">frequency</a> signals to interfere with the operation of <a href="/facts/Radar/jk9BTbFA">radar</a> by saturating its receiver with <a href="/facts/Signal_noise/Izbv38Rr">noise</a> or false information. Concepts that blanket the radar with signals so its display cannot be read are normally known as jamming, while systems that produce confusing or contradictory signals are known as deception, but it is also common for all such systems to be referred to as jamming.
There are two general classes of radar jamming, mechanical and electronic. Mechanical jamming entails reflecting enemy radio signals in various ways to provide false or misleading target signals to the radar operator. Electronic jamming works by transmitting additional radio signals towards enemy receivers, making it difficult to detect real target signals, or take advantage of known behaviors of automated systems like <a href="/facts/Radar_lock-on/x3KMFTQ3">radar lock-on</a> to confuse the system.
Various <a href="/facts/Electronic_counter-countermeasure/WJ2NyhSQ">Electronic counter-countermeasures</a> (ECCMs) can sometimes help radar operators maintain target detection despite jamming.

Radar jamming and deception open-in-new

Radar jamming and deception