Cooperative Waveforms Design for Distributed Radars in Multiple Blanket Jamming

This paper deals with the suppression of multiple mainlobe blanket jamming for a distributed radar system via an interesting cooperative waveform strategy in frequency domain. Specifically, we consider three sites including one transmitting/receiving site and two transmitting sites with short baseline arrangement. We herein design a narrowband detecting signal with good autocorrelation for the transmitting/receiving site, and desired narrowband deceiving and wideband protecting signals for other two transmitting sites. By doing so, a complex spectrum can be formed when the three signals arrive at the enemy jammers via reasonably controlling the powers and launch timings of the three sites. Thus, the enemy jammers can not identify the real detecting signal resulting in degradation of the jamming efficiency. The numerical simulations are conducted to assess the performance of the proposed method compared with the classic distributed Multiple-Input Multiple-Output (MIMO) mode and Single-Input Single-Output (SISO) mode.