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 ?
The primary motivation of the proposed novel jamming detection technique is to identify the jamming attack within the cluster and outside the cluster.
The main objective of this paper is to detect the presence of jamming in wireless sensor networks using two jamming detection metrics namely packet delivery ratio (PDR) and received signal strength indicator (RSSI).
"Satellite networks should take the initiative to ensure new frequencies for the Lebanese channels because the jamming might be related to the political problems the region is going through."
And it is important that this picture is shown before a decision is taken as to whether jamming a certain radar is beneficial.
He also said that they can't stop China from doing what they want on their bases, such as deploying assets with jamming capabilities.
[K.sub.j] denotes the minimum ratio of jamming and signal, which indicates defender [R.sub.j] required for normal work.
The output SINR is guaranteed, it will be easier to calculate the satellite navigation signal after suppressing the jamming for the GNSS receiver.
Jamming in narrow-band frequency--narrow-band jamming requires good knowledge of jammed device frequency.
There are various jamming techniques that can be used against DSSS signals, including stand-in and pulse jamming.
The authors consider all methods of protecting aircraft part of the taxonomy of EW, to include regular jamming of air defense radars (called masking jamming), deception, jamming the radars on high-speed anti-radiation missiles (HARMs), and directed energy destruction of radars.