摘要
卫星导航信道具有宽带、时变和城区复杂多径等特征,为了能够充分挖掘、有效预测和评估全球导航卫星系统(Global Navigation Satellite System,GNSS)的性能,需要对各种环境中的卫星信道进行测量和建模研究,文中主要讨论了卫星导航信道的测量和建模及其研究进展.首先给出了信道建模的方法和与卫星导航相关的测量活动的汇总,然后讨论比较了几种常见的卫星导航信道模型,最后探讨了卫星导航信道建模面临的挑战以及未来的研究重点.
Satellite navigation channel has the characteristics of broadband,time-varying,complex multipath in urban,etc.In order to practically enhance,effectively predict and evaluate the performance of Global Navigation Satellite System(GNSS),it is necessary to measure and model the satellite channel in the challenging environment.This paper mainly discusses the measurement and modeling of satellite navigation channel and its research advances.It summarizes the research status of measurement activities,reviews the general methods of channel modeling and the summary of measurement activities related to satellite navigation,and discusses and compares several prevailing GNSS channel models.Finally,the challenge of satellite navigation channel modeling and the future research focus are discussed.
作者
周顺
林红磊
王茂磊
唐小妹
欧钢
ZHOU Shun;LIN Honglei;WANG Maolei;TANG Xiaomei;OU Gang(College of Electronic Science and Technology,National University of Defense Technology,Changsha 410073,China;The 63rd Research Institute,National University of Defense Technology,Nanjing 210007,China;Beijing Satellite Navigation Centre,Beijing 100094,China)
出处
《电波科学学报》
EI
CSCD
北大核心
2020年第4期504-514,共11页
Chinese Journal of Radio Science
关键词
卫星导航
信道模型
信道测量与建模
陆地移动卫星
传播特性
satellite navigation
channel model
channel measurements and modeling
land mobile satellite
propagation characteristic
