jamming


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jamming

[′jam·iŋ]
(electronics)
Radiation or reradiation of electromagnetic waves so as to impair the usefulness of a specific segment of the radio spectrum that is being used by the enemy for communication or radar. Also known as active jamming; electronic jamming.

jamming

Electronic or mechanical interference that may disrupt the display of aircraft on radar or the transmission or reception of radio communication or radio navigation signals. Radar, communications equipment, and navigational aids can be jammed. Jamming is a major activity in electronic warfare.
References in periodicals archive ?
Jamming by response is made by radar signal reception, its amplification on target and reemission in such a pattern and in such a time that target reflexes, that do not exist in the space under surveillance, appear on the jammed radar, or the coordinates with the existing target have been shifted so to remain within the reliability required.
Main radar jamming modes are (Schlesinger R, 1999):
If partial-band jamming is used against a frequency hopper, some of the hop frequencies are jammed, while others are not.
Modulated infrared sources and pyrotechnic flares are used to accomplish jamming in the infrared spectrum analogous to that of a radio frequency jammer.
S]) can be calculated from the various signal and jamming parameters.
During each dynamic performance, E-shot online will snap images of energized concert goers jamming to the band's hard-hitting rhythms while enjoying a delicious cup of Nescafe.
Totally transparent to the devices under test, the jamming process can be performed at several levels, to a precise frame or primitive.