Humidity Effect on Dust Storm Attenuation Prediction for 21 GHz Microwave Links in Sudan

2020 International Conference on Computer, Control, Electrical, and Electronics Engineering (ICCCEEE) Pub Date : 2021-02-26 DOI:10.1109/ICCCEEE49695.2021.9429635

E.I. Eltahir, E. A. Elsheikh, A. A. Babiker, I. Rafiqul, M. H. Habaebi, A. Abdulla, E. Saad, F. M. Suliman

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引用次数: 2

Abstract

Dust storms affect the performance of microwave links. Several dust storm attenuation prediction models were proposed by researchers based on theoretical assumptions of either single - particle scattering theorems or numerical methods. The climate conditions and signal variations on microwave link operated at 21 GHz were monitored concurrently in Khartoum, Sudan for one year period. It was observed that dust storms are accompanied with increase of relative humidity and decrease in the received signal. The attenuation predicted by theoretical models and the measured attenuation at 21GHz were compared for a dry and humid case. The predicted attenuations in humid condition are varied significantly and increased 5 times more than dry dust condition. From these results it’s obvious that all the theoretical methods are unable to determine the attenuation of microwave propagation in dust storm at 21GHz and it’s essential to improve available models by considering the effect of humidity.

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湿度对苏丹21 GHz微波链路沙尘暴衰减预测的影响

沙尘暴会影响微波链路的性能。研究人员提出了几种基于单粒子散射定理的理论假设或数值方法的沙尘暴衰减预测模型。在苏丹喀土穆同时监测了21千兆赫微波链路的气候条件和信号变化，为期一年。观测到沙尘暴伴随着相对湿度的增加和接收信号的减弱。在干燥和潮湿情况下，将理论模型预测的衰减与21GHz的实测衰减进行了比较。湿润条件下的预测衰减变化显著，是干燥条件下的5倍。从这些结果可以看出，所有的理论方法都无法确定21GHz沙尘暴中微波传播的衰减，有必要考虑湿度的影响来改进现有的模型。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2020 International Conference on Computer, Control, Electrical, and Electronics Engineering (ICCCEEE)

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