Multiple Linear Chirp-Based Partial-Band Chirp Jamming for Chirp Spread Spectrum Systems

The conventional noise-based jamming strategy that randomly radiates high power radio frequency signals limits the jamming performance when the bandwidth is spread more widely. Moreover, increasing the jamming bandwidth to deteriorate entire spreading bandwidth reduces the jamming bandwidth efficiency. Thus, in this paper we propose a multiple linear chirp-based partial-band chirp (MLC-PBC) jamming which obtains the matched characteristic against the chirp signals used by the enemy. In order to evaluate the performance, we consider both jamming bandwidth and separation bandwidth of the MLC-PBC. Simulation results show that the proposed MLCPBC jamming can improve the jamming performance and the jamming bandwidth efficiency.