What Are The Antenna Jamming Techniques In Radar Detector?


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Jamming refers to RF signals initiating from basis outer the radar, broadcasting in the radar's occurrence and thus masking targets of attention. Jamming may be deliberate, as by an anti-radar electronic warfare (EW) method, or inadvertent, as with gracious forces operating tackle that spreads using the equal occurrence range. Jamming is measured a vigorous intrusion source, since it is started by rudiments outside the radar and in commonly unconnected to the radar signals.

Jamming is difficult to radar since the jamming indication only wants to voyage one-way (from the jammer to the radar recipient) while the radar repeats travel two-ways (radar-target-radar) and are therefore considerably condensed in power by the time they go back to the radar recipient. Jammers consequently can be much fewer powerful than their jammed radars and still successfully facade targets by the side of the line of sight from the jammer to the radar (Main lobe Jamming). Jammers have an added result of touching radars along supplementary line-of-sights, due to the radar recipient's side lobes (Side lobe Jamming).

Main lobe jamming can normally simply be condensed by tapering the main lobe solid angle, and can never completely be removed when straightly facing a jammer which uses the similar occurrence and division as the radar. Side lobe jamming can be conquer by reducing getting side lobes in the radar aerial design and by using an omni directional aerial to notice and ignored non-main lobe indications. Other anti-jamming methods are frequency hopping and divergence.

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