摘要
为在月球建立长期驻留的月面科研基地,实现局部网络的通信覆盖,提出了月球通信塔(lunar communication tower,LCT)的模型设计方法和多基站的部署方案。通过对月面探测任务与月表多设施通信网络的需求分析,设计了LCT的功能模块和模型结构。引入基于地理信息的覆盖场强预测模型,结合月表地形对通信链路的损耗影响,评估了多基站通信塔的有效覆盖与传输速率指标。在部署方案上,首先,在月球南极光照区范围内采用遍历法得到覆盖平均场强最大的主基站部署位置;随后,采用遗传算法最大化主基站半径10 km范围内的覆盖场强,对月球表面特定区域进行搜索,获取多个副基站的最佳部署位置;最后,针对集中式和分布式通信塔主、副基站的部署方案,进行了对应于CCSDS Proximity-1协议、长期演进(long term evolution,LTE)、Wi-Fi制式下覆盖性和传输速率的仿真分析,充分验证了月表多设施通信网络建设的可行性。
In order to establish a long-term lunar research base and realize the communication coverage of local network,a lunar communication tower(LCT)model and a deployment scheme of multiple base stations are proposed.The functional modules and model structure of LCT are designed by analyzing the requirements of the lunar exploration mission and the lunar surface multi-device communication network.Combining the coverage field strength prediction model based on terrain geometry with the communication link loss by lunar surface terrain.This paper evaluates the effective coverage and transmission rate of multiple LCTs.In terms of deployment scheme,this paper firstly obtains the location of the main base station with the maximum covering average field strength by using ergodic algorithm within the lunar south pole illumination region.Then,this paper uses the genetic algorithm to search the optimal deployment locations of several sub-base stations,which maximizes the coverage field strength within the area with a radius of 10 km.Finally,the deployment schemes of the centralized and distributed main and sub stations of communication tower are simulated to show the coverage performance and transmission rate of CCSDS Proximity-1 protocol,long term evolution(LTE),and Wi-Fi,which fully verifies the feasibility of the multi-device communication network construction on the lunar surface.
作者
覃凯
顾术实
张智凯
王玉
刘倩
赵晨
张钦宇
QIN Kai;GU Shushi;ZHANG Zhikai;WANG Yu;LIU Qian;ZHAO Chen;ZHANG Qinyu(School of Electronic and Information Engineering,Harbin Institute of Technology(Shenzhen),Shenzhen 518055,China;Guangdong Provincial Key Laboratory of Aerospace Communication and Networking Technology,Shenzhen 518055,China;Shanghai Institute of Aerospace System Engineering,Shanghai 201109,China)
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2024年第2期729-739,共11页
Systems Engineering and Electronics
基金
国家自然科学基金(62271165,61831008,62027802)
广东省基础与应用基础研究基金(2021A1515011572,2023A1515030297)资助课题。
关键词
月球通信塔
月表地理信息
ITU-RP.526模型
场强预测
遗传算法
lunar communication tower(LCT)
lunar surface terrain geometry
ITU-RP.526 model
field strength prediction
genetic algorithm
