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Empirical analysis of medium wave field strength prediction in urban environments

机译:城市环境中介质波场强度预测的实证分析

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This paper presents results obtained from four extensive field trials of medium wave DRM (Digital Radio Mondiale) which were carried out in Madrid (Spain), Delhi (India) and Mexico D.F. (Mexico) using different transmission frequencies. The objective is to provide medium wave field strength spatial variability values for urban environments using empirical analysis methodology. The influence of the transmission frequency on medium wave propagation in urban environments is included. Both, long and short term components of the signal spatial variability are studied characterizing wide, medium and narrow streets, and the attenuation caused by different urban fast variation occurrences is statistically featured. All the results presented in this paper are essential for future network planning of new emerging digital broadcasting services and have been validated using the Generalized Lee Method.
机译:本文介绍了在马德里(西班牙),德里(印度)和墨西哥D.F.进行的四次中波DRM(数字无线电Mondiale)广泛现场试验获得的结果。 (墨西哥)使用不同的传输频率。目的是使用经验分析方法为城市环境提供中波场强度空间变异性值。包括传输频率对城市环境中介质波传播的影响。研究了信号空间变化的长期和短期成分,以表征宽,中,窄街道,并统计了由不同城市快速变化发生而引起的衰减。本文介绍的所有结果对于新兴的数字广播服务的未来网络规划都是必不可少的,并且已使用通用李方法进行了验证。

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