基于传播模型和天线方向图高铁覆盖问题研究

基于传播模型和天线方向图高铁覆盖问题研究

内容简介：针对传统高铁WCDMA网络规划存在的问题，创新采用天线方向图和掠射角，并结合COST-231 Hata传播模型，计算满足全覆盖条件时不同技术组合下基站与轨道的垂直距离。结果表明，不同技术组合下基站与轨道的垂直距离应在合适的范围内才能达到高铁的全覆盖要求，实现投资收益最大化，避免因最弱点覆盖不足而造成重复投资。

Abstract：In order to solve the problems existing in WCDMA network planning of traditional high-speed railway, the antenna pattern and the grazing angle are creatively used. Combined with the COST-231 Hata transmission model, the vertical distances between base station and orbit are calculated under different technical combinations and full coverage condition. The results show that the vertical distances between base station and orbit should be in the right range under different technical combinations in order to achieve full coverage of high-speed railway and maximize investment returns, avoiding the repeated investment because of inadequate coverage on the weakest point.

作者：李文生, 李馨春, 梁松柏,

关键词：天线方向图, 传播模型, 掠射角, 垂直距离,