GNSS多频观测值线性组合研究  

Research on Multi-Frequency Observation Linear Combination of GNSS

作　　者：郭忠臣 高井祥[1] 王坚[1] 曹新运[1] 

机构地区：[1]中国矿业大学国土环境与灾害监测国家测绘地理信息局重点实验室,徐州市大学路1号221008

出　　处：《大地测量与地球动力学》2015年第3期379-382,共4页Journal of Geodesy and Geodynamics

基　　金：国家自然科学基金(41074010);江苏省高校优势学科建设工程(SZBF2011-6-B35);新世纪优秀人才支持计划(NCET-13-1019);中国矿业大学基本科研业务专项(2013RC16)

摘　　要：以Galileo四频为例,组合其不同频率间的相位观测值,给出以周为单位和以m为单位的相位组合观测模型的通用形式,系统分析组合后的电离层误差、波长以及观测噪声;在保持整周模糊度整数特性的前提下,研究电离层误差小、波长长、观测噪声小的组合;最后,按照合适的原则,编程计算出不同导航系统不同形式的组合观测系数,并给出几组典型组合。The combination of the phase observations between different frequencies is presented, using the Galileo four frequency as an example; and the general form of combination observation in the unit of cycles and meters is given. The ionospheric error, wavelength and the observation noise is analysized in detail. With the integer ambiguity as a prerequisite, some useful linear combination as long wavelength, weak ionospheric delay and weak observation noise is researched. Finally, depending on the combination principle, programming to calculate combination coefficients of different navigation system and several typical combination coefficients are given.

关 键 词：GNSS 线性组合 电离层延迟 观测噪声 整周模糊度 

分 类 号：P228.4[天文地球—大地测量学与测量工程]