对流层和电离层是地球近地空间环境中两个重要的组成部分, 是靠近地球表面且与人类生活联系
最密切的大气圈层. 全球导航卫星系统技术的快速发展, 为GNSS 空间环境学的研究提供了良好 …

With the current data availability from both ground‐and space‐based sources, the network of
ground‐based Global Positioning System (GPS) receivers, GPS occultation receivers, in situ …

PPP-RTK is integer ambiguity resolution-enabled precise point positioning. In this
contribution, we present the principles of PPP-RTK, together with a review of different …

In the context of the International GNSS Service (IGS), several IGS Ionosphere Associated
Analysis Centers have developed different techniques to provide global ionospheric maps …

Abstract The International GNSS Service (IGS) Working Group on Ionosphere was created in
1998. Since then, the Scientific community behind IGS, in particular CODE, ESA, JPL and …

The Global Positioning System (GPS) is a navigation system based on satellite technology.
Its fundamental technique involves measuring the ranges between the receiver and a few …

A summary of the main concepts on global ionospheric map (s)[hereinafter GIM (s)] of
vertical total electron content (VTEC), with special emphasis on their assessment, is …

The main goal of this paper is to provide a summary of our current knowledge of the
ionosphere as it relates to space geodetic techniques, especially the most informative …

In this work we present a simple technique to estimate the medium‐scale traveling
ionospheric disturbances (MSTIDs) characteristics (such as occurrence, velocity, vertical …

Integer ambiguity resolution at a single receiver can be achieved if the fractional-cycle
biases are separated from the ambiguity estimates in precise point positioning (PPP) …