电波科学学报2018，Vol.33Issue(1)：41-47,7.DOI:10.13443/j.cjors.2017100801
高架桥场景下的射线跟踪仿真器校正及信道特性分析
Calibration of ray tracer and channel analysis for high-speed railway viaduct scenario
摘要
Abstract
In this paper, ray tracer (RT) is applied to conduct simulation of the propagation in high-speed railway viaduct scenario at 93. 2 GHz. Some basic input parameters such as geometrical dimensions of environment, positions of transmitter and receiver, permittivity of materials are calibrated based on the measurement results. The average error of path loss between simulation and measurement is calibrated to 0. 2 dB, obtaining a reasonable improvement of the accuracy of RT. The calibrated results are employed to study propagation characteristics in viaduct scenario. Rician K-factor, root-mean-square (RMS) delay spread, power delay profile and angular spread are calculated. The typical structure of viaduct and the application of horn antennas lead to a small value of each calculated parameters at each snapshot. In addition, correlation between parameters are also analyzed in this paper.关键词
高架桥场景/毫米波/信道/仿真器校正/参数分析Key words
viaduct scenario/millimeter wave/propagation channel/ray tracer calibration/parameters analysis分类
信息技术与安全科学引用本文复制引用
林雪,艾渤,何丹萍,官科,钟章队..高架桥场景下的射线跟踪仿真器校正及信道特性分析[J].电波科学学报,2018,33(1):41-47,7.基金项目
国家自然科学基金 (U1334202和61501021) （U1334202和61501021）
中央高校基本科研业务费专项资金 (2016JBM075) （2016JBM075）
轨道交通控制与安全国家重点实验室自主课题 (RCS2017ZZ004和RCS2017ZT008) （RCS2017ZZ004和RCS2017ZT008）
