Signal jamming weapons also have offensive and defensive capabilities
Whatever the target of a GPS jammer, the devices do not discriminate, so there is usually additional collateral damage. Air Traffic Control (ATC), search and rescue operations, the electric grid and mobile phone services are all vulnerable to GPS jamming fallout. The London Stock Exchange has been subject to repeated GPS outages, affecting timestamping of financial transactions. In 2007, a navy exercise on loss of GPS communications in San Diego harbor meant that residents of the city were unable to withdraw cash from ATMs and doctors’ emergency pagers stopped working – it took 3 days to identify the ships as the cause. As jamming activity from civilian users becomes more prevalent, we risk similar disruptions as well as more fatal incidents such as aircraft colliding over populated areas.
The Military IR GPS jammer is the top of the line in infrared missile protection. It sends out a short laser burst at the incoming missile, disabling its sensor 'eye' and causing it to wander off target. Recent developments in this technology have improved its reliability, and very few missiles make it through its 'screen'.
Radar capabilities such as synthetic aperture radar (SAR) imaging, multiple degrees of agility, and a wide spectral range – coupled with the introduction of cognitive/adaptive EW jamming techniques – have dramatically increased the complexity and cost of developing effective test environments.
RFM technology has been increasingly used in ECM signal jammer systems to deny and/or deceive radar systems. As a result, modern radar systems have developed methods to quickly detect “synthetic” DRFM-generated signals and identify them as jamming signals rather than tracking them as valid targets.
Additionally, the move toward multicore GPU servers for complex radar signals will accelerate as machine learning and artificial intelligence are employed in radar and jammer systems to enable cognitive/adaptive capabilities.
uckey was referring to other counter-drone systems that seek to disable their targets by using electronic warfare, typically by jamming the unmanned aircraft's links to a ground control station. The hope is that this would cause it to fall out of the sky or initiate a pre-programmed emergency function that tells it to return to the point of launch. U.S. Marines used just such a system earlier this year to knock down two Iranian drones in the Strait of Hormuz.