雷达通信自组网的邻居发现算法研究

摘要

Based on radar system,the radar communications network is an ad hoc network with target detection and communications capabilities.It can give full play to the high-speed communication potential of radar systems and achieve real-time information sharing and fusion.As the first and pivotal step of networking system,neighbor discovery's convergence rate can determine the efficiency of networking.In view of this and in considering the characteristics of radar ad hoc network with directional transmission,a high real-time directional neighbor discovery algorithm named radar scanning-based algorithm (RSBA) is proposed,and its performance is also given.Different from the early neighbor discovery algorithms,RSBA can take advantage of neighbors' fuzzy azimuths provided by radar scanning and accelerate the neighbor discovery.Simulation with OPNET and comparison of RSBA with scanning-based algorithm (SBA) and completely random algorithm (CRA) indicate that RSBA outweighs the others.%雷达通信自组网是一种基于雷达系统的集成目标探测与通信功能的专有自组织网络,可以发挥雷达系统的高速通信潜力,实现信息的实时共享融合.邻居发现是系统组网的首要步骤,其收敛速度决定了组网的效率.因此,针对基于定向传输的雷达通信自组网的特点,建立定向传输网络模型,提出了一种高实时性的定向邻居发现算法(RSBA),并分析了该算法的性能.与以往无先验信息的邻居发现算法不同,RSBA可以充分利用雷达扫描提供的邻居模糊方位角加速发现过程.利用OPNET对RSBA、顺序扫描算法(SBA)和随机扫描算法(CRA)进行仿真分析,结果显示RSBA收敛性能优于其他算法.