一种面向大规模感知节点的电磁环境地图快速生成方法  

A Fast Radio Environment Map Construction Scheme for Large Scale Sensor Nodes

作　　者：张淞 邵尉 郭宇鹏 李炳呈 李艳婷 肖逸凡 ZHANG Song;SHAO Wei;GUO Yupeng;LI Bingcheng;LI Yanting;XIAO Yifan(Army Engineering University of PLA,Nanjing 210007,China)

机构地区：[1]陆军工程大学,江苏南京210007

出　　处：《电声技术》2020年第9期61-64,68,共5页Audio Engineering

摘　　要：为扩大频谱监测网络的覆盖范围并保证电磁环境地图的生成精度,目前频谱感知节点的布设数量越来越多。面向感知节点规模增大导致REM生成运算量过大的问题,设计一种REM快速生成方法并进行仿真验证。首先,将整个地域划分为多个分区,利用改进Shepard内插算法生成各分区REM再拼接为全地域REM;其次,通过电波传播损耗模型外推生成感知数据,作为频谱感知节点的感知数据来源,以支持仿真系统的构建;最后,通过开展计算机仿真实验,验证了所提方法在快速生成REM方面是可行的。Currently,in order to expand the coverage of the spectrum monitoring network and ensure the accuracy of the constructed Radio Environment Map(REM),more and more spectrum sensing nodes are arranged.Aimed at reducing the excessive calculation of REM construction when the scale of sensing nodes expands,this paper designs a fast scheme for constructing REM and carries out a simulation experiment for validation.We first divide the whole area into several subareas,and then built the REMs of these subareas to combine them together to form the REM of the whole area through the improved Shepard interpolation algorithm.Later,the sensing data is extrapolated through the electromagnetic propagation loss model and then used as the sensing data source for the spectrum sensing nodes,to support the simulation system.Finally,we conduct computer simulation experiments and verify that the scheme we designed is feasible in constructing REM in a fast way.

关 键 词：大规模感知节点 电磁环境地图 分区 快速生成 

分 类 号：TN92[电子电信—通信与信息系统]