Adda S, Anglesio L, d'Amore G, Mantovan M, Menegolli M
ARPA Piemonte, Dipartimento di Ivrea, Via Jervis 30, 10015 Ivrea (To), Italy.
Radiat Prot Dosimetry. 2004;111(4):339-42. doi: 10.1093/rpd/nch050.
This paper aims to validate a ray-tracing model for electromagnetic field calculation, which is used in urban environments to predict irradiation from radio base stations for population exposure evaluation. Validation was carried out through a measurement campaign by choosing measurement points in order to test different propagation environments and analysing broadcast control channels through narrow band measurements. Comparison of the calculated and measured fields indicates that the ray-tracing model used calculates electric field with good accuracy, in spite of the fact that the propagation environment is not described in detail, because of difficulties in modelling the geometrical and electrical characteristics of urban areas. Differences between the calculated and measured results remain below 1.5 dB, with a mean value of 1 dB.
本文旨在验证一种用于电磁场计算的射线追踪模型，该模型用于城市环境中预测无线电基站的辐射，以评估人群暴露情况。通过开展测量活动进行验证，选择测量点以测试不同的传播环境，并通过窄带测量分析广播控制信道。计算场与测量场的比较表明，尽管由于对城市区域的几何和电气特性进行建模存在困难，传播环境未得到详细描述，但所使用的射线追踪模型计算电场的精度良好。计算结果与测量结果之间的差异保持在1.5 dB以下，平均值为1 dB。
