日本QZSS系统建设进展及性能分析  

Construction Progress and Performance Analysis of Japanese QZSS System

作　　者：胡彩波[1,2] 赵金贤 唐云 张之学 

机构地区：[1]武汉大学卫星导航技术研究中心,湖北武汉430079 [2]北京卫星导航中心,北京100094

出　　处：《测绘科学与工程》2014年第2期61-64,69,共5页Geomatics Science and Engineering

基　　金：国家863计划资助项目（2013AA122401）.

摘　　要：Qzss是日本研制的星基区域增强卫星导航系统，星座由3颗QZS卫星组成，以确保日本及大洋洲地区时刻有一颗卫星在高仰角区域可视。该星座独特的设计构型极大地改善了日本地区在高楼林立的城市峡谷环境下利用GPS导航问题。本文对Qzss系统发展现状进行了分析，并从不同区域卫星可视数量以及对该地区DOP的影响方面进行仿真研究，验证这种星座构型对导航服务的贡献。QZSS （ Quasi - Zenith Satellite System） is a satellite - based regional augmentation navigation system. The con- stellation consists of three QZS satellites, which guarantees at least one visible satellite with high - elevation for Japan and Ocean- ia all the time. The constellation design configuration greatly improved the problem of using GPS in urban canyon environment in Japan. In September 2010, the first QZSS satellite QZS -1 is launched into space. In this paper, the present situation of QZSS system development is analyzed, and simulation researches are conducted on the number of visible satellites in different regions and their impacts on DOP, which can validate the contribution of the constellation configuration to navigation service.

关 键 词：QZSS 区域卫星导航系统 性能 系统建设现状 

分 类 号：TN967.1[电子电信—信号与信息处理]