关中平原大地等效电导率的间接测量

Indirect Measurement of Earth Equivalent Conductivity in Guanzhong Plain

为准确预报地波传播时延,用电波传播法对关中平原的大地等效电导率进行了间接测量。阐述了电波传播法的测量原理和方法,第一次给出关中平原大地等效电导率的间接测量结果,同时,给出了中国科学院国家授时中心临潼科研楼参考点的BPL信号传播时延测量结果,并对这些测量结果进行了精度分析。

In order to predict the ground-wave propagation delay,the earth equivalent conductivity in Guanzhong plain has been measured indirectly with the radio-wave propagation method.In this paper,the principle and method of the measurement are demonstrated,the indirectly measured results of the earth equivalent conductivity for Guanzhong plain are given for the first time,and the measurement result of the BPL signal propagating delay for the reference point at the National Time Service Center＇s research building is also presented.Furthermore,the accuracies of the measurement results are analysed.