基于正六边形网格通信可视域的机动节点站选址方法

Location Method of Mobile Station Based on Hexagonal Grid Communication Viewshed

战术信息通信系统组织筹划时需要考虑复杂地形环境对通信保障的影响。顾及地面障碍对无线通信信道的遮蔽情况,首先提出一种基于正六边形网格的通信可视域生成算法;其次以生成的通信可视域范围和相关地形影响为约束条件,构建一种基于通信可视域的机动节点站覆盖选址模型;最后改进了粒子群算法对覆盖选址模型进行优化求解。实验结果表明:正六边形网格通信可视域覆盖率比原有覆盖率提高7个百分点以上,且差值不大于2个百分点;选址结果收敛于8个站点,总覆盖率达93.48%。生成的选址参考方案可为战场信息通信网络规划和应急通信保障提供有效支持。

In the tactical information communication system organization planning,the influence of the complex terrain environment on communication support should be taken into account.Consider-ing that ground obstacles obstruct the wireless communication channel,we propose an algorithm for building the communication viewshed based on a regular hexagonal grid.We also construct a cover-age location model of a mobile node station based on communication viewshed and improve the parti-cle swarm optimization(PSO)algorithm to solve it.The experimental results demonstrate that our al-gorithm increases the coverage of the communication viewshed by more than 7 percentage points and reduces the difference to less than 2 percentage points.The site selection result converges to 8 sites,with a total coverage rate of 93.48%.Our scheme can offer effective support for the battlefield infor-mation communication network planning and emergency communication support.