arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2205.03327cs.ITcs.AImath.IT
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基于混合无线电信道模型的无人机辅助无线节点定位

UAV-aided Wireless Node Localization Using Hybrid Radio Channel Models

EURECOM(欧洲通信学院)

Omid Esrafilian, Rajeev Gangula, David Gesbert

摘要:

研究了基于无人机接收信号强度测量的地面用户定位问题。将无人机-用户链路信道模型参数和无人机天线辐射方向图作为未知量进行估计。提出了一种混合信道模型,该模型由传统的路径损耗模型和近似无人机天线增益函数的神经网络组成。利用该模型和一组离线RSS测量,估计未知参数。然后,我们采用粒子群优化(PSO)技术,利用学习的混合信道模型以及三维地图的环境,以准确地定位地面用户。所开发的算法的性能进行评估,通过模拟和现实世界的实验。

英文摘要:

This paper considers the problem of ground user localization based on received signal strength (RSS) measurements obtained by an unmanned aerial vehicle (UAV). We treat UAV-user link channel model parameters and antenna radiation pattern of the UAV as unknowns that need to be estimated. A hybrid channel model is proposed that consists of a traditional path loss model combined with a neural network approximating the UAV antenna gain function. With this model and a set of offline RSS measurements, the unknown parameters are estimated. We then employ the particle swarm optimization (PSO) technique which utilizes the learned hybrid channel model along with a 3D map of the environment to accurately localize the ground users. The performance of the developed algorithm is evaluated through simulations and also real-world experiments.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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