Sweep Jamming Mitigation Using Adaptive Filtering for Detecting Frequency Agile Systems

The military applications of interference mitigation are numerous, with the most obvious application being suppressing the effects of adversarial jamming. However, jamming mitigation also becomes essential in scenarios where the host force's jammer and signal intelligence receiver are in close proximity to each other and the jammer inadvertently introduces interference in the receiver. In this paper, through experiments carried out in a laboratory environment, we demonstrate the feasibility of digitally mitigating non-stationary narrowband interference caused by a sweep jammer, while simultaneously retaining the ability to receive and detect signals from unmanned aerial vehicle (UAV) remote control systems that use frequency hopping in the jammed frequency band.