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本文根据广州、北京、郑州等地的450MHz 移动通信场强测试资料,分析了市区、郊区和乡村环境中的、平坦地形下的信号快、慢衰落特性,给出了衰减中值及场强中值随传播距离变化的回归曲线,并与国外的测试结果作了比较。
Based on 450MHz mobile field strength test data in Guangzhou, Beijing and Zhengzhou, this paper analyzes the fast and slow fading characteristics of signals under flat terrain in urban, suburban and rural environments, and gives the attenuation median and field strength The median with the propagation distance of the regression curve, and with foreign test results were compared.