非均质无线电电子环境下近地表电磁背景的最坏情况估计

V. Mordachev
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引用次数: 3

摘要

给出了一种实用的估算不同无线电系统产生的近地表电磁背景总量的最坏情况的方法。该方法考虑了不同业务的全套固定和移动发射机所形成的无线电电子环境的异质性,以及发射机与观测点之间不同距离上无线电波传播的特殊性,以及这些发射机产生的观测点电磁场的统计特征。所提出的方法可以直接将区域上的总电磁载荷估计为所有业务的全套发射机的等效各向同性辐射功率的总等效辐射功率,从而估计出由异质无线电电子环境产生的电磁背景总强度的基本上界。研究结果为非正弦波超宽带无线电系统和次频段认知无线电系统的电磁兼容诊断和设计提供了保障,并为人口密集地区可接受的电磁环境条件提供了支持。
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Worst-case estimation of electromagnetic background near ground surface created by heterogeneous radioelectronic environment
The practical method of worst-case estimation of the total electromagnetic background near ground surface created by different radio systems is offered. This method takes into consideration heterogeneity of radioelectronic environment formed by the full set of stationary and mobile transmitters of different radio services, and peculiarities of radio wave propagation on different distances between transmitters and observation point, and of statistical features of electromagnetic fields in observation point generated by these transmitters. The presented method allow to estimate the fundamental upper bound of electromagnetic background total intensity created by heterogeneous radioelectronic environment, directly on the basis of estimation of the total electromagnetic loading on territory as the total equivalent isotropic radiated power of full set of transmitters of all services falling to the unit of the area of considered territory. The presented results ensure the facilities of EMC diagnostics and design of ultra wide band radio systems using nonsine radio waves, and cognitive radio systems using frequency bands on the secondary basis, and of support of the acceptable electromagnetic environmental conditions in populous areas.
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