基于抛物方程的无人机通信场景传播特性分析

doi:10.11959/j.issn.1000-0801.2022247

Abstract

Abstract:

To improve the analysis accuracy of the propagation characteristics of UAV millimeter-wave communication scenarios, a method based on the parabolic equation was developed to analyze the propagation characteristics of UAV communication scenarios and simulate the propagation characteristics in urban and suburban areas.The results show that the proposed method can effectively express the influence of terrain parameters on the UAV air-ground communication link.Overall, the prediction results are consistent with the ITU-R statistical method in both scenarios.Effective prediction of the propagation characteristics of millimeter-wave UAV application scenarios can be realized with the proposed method, which may support the design, development, and testing of UAV millimeter-wave communication systems.

Key words: UAV, communication, radio propagation, parabolic equation, simulation

CLC Number:

TP393

Hui HAN, Yulong HAO, Cheng YANG, Jian WANG. Analysis of propagation characteristics of UAV communication scenarios based on parabolic equation[J]. Telecommunications Science, 2022, 38(8): 45-53.

Figures/Tables 8

References 31

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方法	类型	适用频段	适用场景	特点
ITU-R P.1546	经验性预测模型	30～4 000 MHz	天线离地高度小于3 km、路径长度在1～1 000 km的地面业务	能够预测陆地、海面、混合路径对流层无线电链路特性
ITU-R P.2001	确定性预测模型	30 MHz～50 GHz	对流层内路径长度为 3～1 000 km的地面业务	能够预测不同传播机制下信号的衰落和增强
射线追踪方法	确定性预测模型	—	基于直射、反射和透射等传播机制的电磁波传播	描绘电磁波射线传播轨迹，对传播情况提供定性的描述
抛物方程方法	确定性预测模型	—	复杂大气和地表环境下的电磁波传播	能够根据边界条件，精确评估复杂环境下的电波传播效应

场景名称	方法	极大值/dB	极小值/dB	极差值/dB
典型都市场景	本文方法	174.99	102.21	72.78
	ITU-R P.1546模型	134.09	99.88	34.21
典型郊区场景	本文方法	134.14	102.18	31.96
	ITU-R P.1546模型	106.44	99.88	6.56

Analysis of propagation characteristics of UAV communication scenarios based on parabolic equation

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