deception jamming

deception jamming

deception jamming
Normal operation. The radar locks onto the target.
deception jamming
Aircraft on edge of beam. The jammer leaks into the antenna via the side lobe and the radar locks onto fake target.
deception jamming
The same process is repeated. Another fake target created.
An electronic countermeasure (ECM) operation whose aim is to deceive enemy sensors, especially radar. It involves transmitting fake return signals that the victim accepts as genuine. These signals often are sent when the enemy's antenna is not directly facing the jammer, so they must be very powerful to seep into the antenna via a side lobe. The fake pulse is then of an appropriate strength to be accepted as genuine.
References in periodicals archive ?
Intrepid Tiger pods onboard a Reaper would allow the Marine Corps to conduct missions such as "jamming, deception jamming to try to confuse the radars,...
The noise jamming conceals the target signal with the intentionally radiated noise-like signal and the deception jamming deceives the tracking system of radar with the false information about the critical intelligence such as range, angle, or velocity of target.
Angle deception jamming is a significant electromagnetic interference for monopulse radar seekers, which is in the same range unit and beam unit with the target, and making the seekers track to themselves but notthe real target.
Garmatyuk, "Deception jamming modeling in radar sensor networks," Proceedings of IEEE Military Communications Conference (MILCOM'08), 1-7, Washington, DC, USA, 2008.
It seems that the most effective solution is the use of laser-based IR jammers for deception jamming or simply to destroy the vulnerable parts of a missile's IR seeker.
When used for real time deception jamming, a frequency memory loop is brought into play.
Garmatyuk, "Performance of random OFDM radar signals in deception jamming scenarios," in Proceedings of the IEEE Radar Conference, pp.
The SPS-141 jamming pod provides deception jamming, affecting the range and azimuth display of the threat radar.
The A.100 has 360|degrees~ coverage in azimuth in both transmit and receive modes and is capable of generating 14 deception jamming, nine noise jamming, eight Doppler jamming and six combination jamming modulations plus a multimode feature which allows the system to run four pre-programmed modes sequentially.
Jamming may be performed by a transmitter that either swamps the enemy transmitter (i.e., noise or brute-force jamming) or produces misleading information (deception jamming), creating false targets or breaking radar tracking.
Deception jamming is primarily a countermeasure used against search and tracking radars.