中央节目无线数字化覆盖工程规划试算电波传播模型研究

Research on Radio Wave Propagation Model in the Planning of Digital Wireless Coverage Project for Central Radio and TV Program

本文简要介绍了三种常用的电波传播模型,包括ITU-R P.1546、ITU-R P.526和Okumura-Hata,提出了一种用于对中央工程广播电视发射台站的场强覆盖进行仿真试算时使用的电波传播模型的方法,给出了模型确定的总体思路,并以广东省阳江市望瞭岭为典型案例,按照“三步走”原则,采用理论推导结合现场实测的方法,详细介绍了确定电波传播模型的过程,并给出结论。

The paper briefly introduces three commonly used radio wave propagation models,including ITU-R P.1546,ITU-R P.526 and Okumura-Hata,and proposes a method used to select the model that is suitable for coverage simulation of the transmitter in Digital Wireless Coverage Project.With combination of theory and practice,the paper shows process of determining propagation model based on“Three-stages”principle,in the use case of“Wangliao Ridge”TV transmitter in Yangjiang City,Guangdong Province.And at last it gives the conclusion.