Innovation will allow Chinese forces to protect own troops and allies from signal jamming disruptions while disabling enemy communication
By adjusting the waveform, amplitude, phase and relative timing of their signals, these drones can generate a targeted null at friendly positions where jamming signals are cancelled out.
“Under the simulation condition of a 20 dB interference-to-signal ratio, electromagnetic interference at the target legitimate user can be reduced to zero,” wrote the team led by Yang Jian, a professor at the Beijing Institute of Technology, in a peer-reviewed paper published in Chinese journal Acta Electronica Sinica on July 24.
This dual capability – jamming adversaries while safeguarding allies – marks a significant evolution from traditional electronic warfare, which often relies on brute force. This usually comes in the form of omnidirectional jamming that disrupts everything within range, friend or foe, according to Yang and his collaborators from the National Key Laboratory of Wireless Communications in Chengdu, Sichuan.
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