A smart tracking-based jamming scheme for signals with periodic synchronization sequences

Abstract

In this paper, a smart tracking-based jamming scheme is proposed for the signal with synchronization sequences. A different pseudo-random interference sequence, different from the signal's synchronization sequence, is used to track and interfere with the synchronization header in the original signal. With this known pseudo-random synchronization interference sequence, the interference overlapping on the original signal can be nearly cancelled, meanwhile the original signal can be successfully demodulated and decoded at the own receiver without severe interference. However, the other receivers, directly receiving the hybrid signal composed of the original and the pseudo-random interference signals, will fail to recover the original signal without the knowledge of the pseudo-random interference sequence. Compared with traditional full-band full-time noise blanket jamming in communication countermeasures, the advantages of this smart jamming scheme are its low power consumption and up to 100% chance of successful jamming. Simulation results and hardware implementation both show that this scheme can effectively and essentially interfere with the signal at low power consumption.