无人机三维空地信道模型的空间特性研究

doi:10.11959/j.issn.1000-436x.2020043

通信学报 ›› 2020, Vol. 41 ›› Issue (2): 123-130.doi: 10.11959/j.issn.1000-436x.2020043

无人机三维空地信道模型的空间特性研究

张治¹,熊天波¹,陈建侨¹,马楠^1,²

¹ 北京邮电大学信息与通信工程学院，北京 100876
² 中国电子科技集团公司数据链技术重点实验室，陕西西安 710068

修回日期:2020-01-14 出版日期:2020-02-25 发布日期:2020-03-09
作者简介:张治（1977- ），男，河北安平人，博士，北京邮电大学副教授、博士生导师，主要研究方向为移动通信关键技术、数字信号处理、通信系统设计|熊天波（1995- ），男，四川蓬安人，北京邮电大学硕士生，主要研究方向为空地通信信道建模|陈建侨（1988- ），男，河北秦皇岛人，北京邮电大学博士生，主要研究方向为无线信道建模与信道估计|马楠（1979- ），男，陕西旬阳人，北京邮电大学讲师，主要研究方向为无线信道建模、物联网
基金资助:
国家自然科学基金资助项目(61790553);北京市科技计划课题基金资助项目(Z181100003218015)

Research on the spatial characterization of a 3D UAV air-to-ground channel model

Zhi ZHANG¹,Tianbo XIONG¹,Jianqiao CHEN¹,Nan MA^1,²

¹ School of Information and Communication Engineering,Beijing University of Posts and Telecommunications,Beijing 100876,China
² Key Laboratory of Data Link Technology,CETC,Xi’an 710068,China

Revised:2020-01-14 Online:2020-02-25 Published:2020-03-09
Supported by:
The National Natural Science Foundation of China(61790553);The Beijing Municipal Science and Technology Project(Z181100003218015)

摘要/Abstract

摘要：

针对现有无人机（UAV）空地信道几何统计模型（GBSM）对信号到达角和出射角分布的假设过于理想，无法准确描述UAV空地传播环境的空间统计特性，影响建模准确性的问题，面向基于圆柱散射体的UAV三维空地信道模型，从俯仰面和水平面详细分析了到达角和出射角对应散射区域的空间几何特征，进而推导得到角度分布的概率密度函数。通过仿真研究了信道模型的多种参数对概率密度函数的影响，证明了所提成果能够准确地刻画UAV空地信道到达角和出射角的分布，可为空地通信信道的准确建模提供支撑。

关键词: 无人机, 空地信道模型, 圆柱散射体, 空间统计特性

Abstract:

To cope with the problem that the distribution assumptions of arrival angle and departure angle in existing geometry-based stochastic modeling (GBSM) for the unmanned aerial vehicle (UAV) air-to-ground (A2G) channel are too ideal to describe the spatial statistical property of the UAV A2G propagation environment precisely,considering the three-dimensional (3D) cylindrical A2G channel model,the spatial geometric characteristics of scattering regions were investigated analytically as corresponding to the angles of arrival and departure in both elevation and azimuth planes,which derived the probability density function (PDF) for the distribution of each angle.The effects of various parameters of channel model on the PDF were studied and simulation results prove that the derived PDF can describe the spatial statistical properties of UAV A2G channels more accurately,and can support the modeling of A2G communication channels well.

Key words: UAV, A2G channel model, cylinder, spatial statistical property

中图分类号:

TN929.5

张治,熊天波,陈建侨,马楠. 无人机三维空地信道模型的空间特性研究[J]. 通信学报, 2020, 41(2): 123-130.

Zhi ZHANG,Tianbo XIONG,Jianqiao CHEN,Nan MA. Research on the spatial characterization of a 3D UAV air-to-ground channel model[J]. Journal on Communications, 2020, 41(2): 123-130.

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无人机三维空地信道模型的空间特性研究

Research on the spatial characterization of a 3D UAV air-to-ground channel model

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