A false target in radar refers to a deceptive signal that appears on the radar display as if it were a real object, but in reality, it is not. False targets can occur for a variety of reasons, such as noise, interference from other electromagnetic sources, or reflections from environmental objects like birds, clouds, or terrain features. Radar systems use signal processing techniques to filter out false targets and distinguish genuine echoes from noise or clutter. Minimizing false targets is crucial to maintaining the accuracy and reliability of radar systems in applications such as aviation, military operations and weather monitoring.
Radar jamming refers to the deliberate interference of radar signals to disrupt or deceive radar systems. It is generally used as a countermeasure in military operations to reduce the effectiveness of enemy radar systems. Jamming can take different forms, including noise jamming, which overwhelms the radar receiver with random signals, and deception jamming, which creates false targets or modifies radar echoes to mislead the radar operator. Effective radar jamming requires knowledge of the radar frequency, modulation characteristics, and signal processing techniques used by the targeted radar system.
Stand-off jamming is a specific technique used in electronic warfare where the jamming platform operates remotely from the targeted radar system. Unlike close-range jamming, which requires the jamming platform to be in close proximity to the radar, drive jamming allows the jammer to maintain a safer distance from the threat while effectively disrupting radar operations. Stand-off jamming platforms can use powerful transmitters and antennas to emit jamming signals directed at the radar system, intended to overwhelm or deceive its reception capabilities. This technique improves the survivability of the jamming aircraft or vehicle by reducing its exposure to enemy radar and defensive measures.