Spectrum Sharing of Radar and Communication for Multi-detection Working Mode

In this paper, for the spectrum resource management problem of the radar and communication integration system (RCIS) under conversion of multi-detection working mode with limited spectrum resource, a technique of spectrum sharing on demand is proposed. Firstly, we derive the radar echoes data rate and establish the performance index of RCIS. In turn, the system performance of each detection working mode under the traditional spectrum non-sharing (TSNS) scheme and communication dominant spectrum sharing (CDSS) scheme is analyzed. Then, a technique of spectrum sharing on demand is put forward. To realize the real-time transmission of detection data, the optimal sharing band is obtained according to the criterion of minimizing mutual interference between radar and communication and maximizing detection performance. Finally, numerical results are provided to demonstrate the validity of the proposed method.