测控站对流层电波折射修正模型研究  

The Correction Model Studyon Radio Wave Refraction in Troposphere

作　　者：李高[1] 许文波[1] 

机构地区：[1]电子科技大学,四川成都611731

出　　处：《无线电工程》2015年第9期61-64,共4页Radio Engineering

摘　　要：针对具体测控站的对流层电波折射,充分利用了测控数据、气象数据、空间环境监测和高精度航天器轨道数据,开展针对测控站的对流层折射修正模型的研究。分析了对流层中的气象数据与折射率剖面的模型的关系,建立了测控站各季度的折射率剖面模型;对Hopfield修正模型和射线描迹法进行详细阐述并进行了仿真分析,发现在仰角为30°以下时修正精度较低,以及Hopfield模型的一些缺陷。This study makes full use of the TT ＆ C data, meteorological data, space environment monitoring and high precision spacecraft orbit data to carry out the study correction ofradio wave refraction in troposphere according to refraction waves in the tropo- sphere of the specific control stations.The analysis of the relationship between meteorological data and refractive index profile modelin the troposphere is made first,then the troposphericrefraction index profile model of control stations in each quarterare established.A sim- ulation analysis has been executed onHopfield correction model and the Ray-tracing method in detail.The simulation results show the correctionprecision is low when the elevation angle is below 30 degrees and some defects of Hopfield model have been found.

关 键 词：对流层 折射率剖面 射线描迹法 电波折射误差 卫星测控 

分 类 号：U666.12[交通运输工程—船舶及航道工程] V249.322[交通运输工程—船舶与海洋工程]