紫外光通信网节点设计与性能分析

Design of UV communication network node and performance analysis

为了解决军事作战时复杂地形和气候环境中移动设备间的通信问题,针对紫外光通信特点对组网节点进行设计,利用紫外光非视距单次散射链路模型来研究紫外光通信系统的性能.根据MATLAB仿真结果,分析了在发散角、接收视场角、通信距离不同时偏转角对基于该设计的紫外光组网的路径损耗、误码率的影响关系.结果表明,路径损耗、误码率随着通信距离和偏转角的增大而增大,接收视场角越大,误码率越小,主从节点间的有效通信时间越长,发散角变化对紫外光组网节点性能影响不明显.

In order to solve the communication problem of mobile devices when military oper- ates in complex terrain and climatic conditions, network nodes are designed according to the characteristics of the ultraviolet communication, and then the performance of UV communica tion system is studied based on the non-line-of-sight single scattering model of UV. According to MATLAB simulation results, an analysis is made of the relationship between off-axis angle and path loss, BER when Tx beam angle, Rx FOV and baseline distance are different. The re- sults show that path loss and BER increase with the increase of baseline distance and off-axisangle, the larger Rx FOV is, the smaller BER is, the longer the effective tween nodes is,the change of Tx beam angle to the performance of ultravio is not obvious.