摘要
电离层是 GPS定位的主要误差源。本文论述电离层的特征和折射系数 ,以及电离层的下列影响 :电离层码群延、电离层载波相位超前、电离层多普勒频移、振幅闪烁、电离层相位闪烁效应、磁暴对 GPS定位测量的影响、电离层对差分 GPS的影响和 GPS接收机的电离层改正。
The ionoshpere is an important error source of GPS positicning. In this paper, characteristics of the lonosphere, refractive index of the ionosphere and the following major effects: ionospheric group delay, ionospheric carrier phase advance, ionoshperic Doppler shift, ionospheric phase scintilation effects, magnetic stroms effects on GPS positioning, ionospheric effects on differential GPS positioning and ionospheric correction of GPS receivers are discussed.
出处
《测绘工程》
CSCD
2000年第1期9-15,共7页
Engineering of Surveying and Mapping
