Measurement Signal Quality Assessment on All Available and New Signals of Multi-GNSS (GPS, GLONASS, Galileo, BDS, and QZSS) with Real Data
Measurement Signal Quality Assessment on All Available and New Signals of Multi-GNSS (GPS, GLONASS, Galileo, BDS, and QZSS) with Real Data
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DOI：
10.1017/s0373463315000624
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发表时间：
2015-09
影响因子：
2.4
通讯作者：
Yiming Quan;L. Lau;G. Roberts;Xiaolin Meng
中科院分区：
文献类型：
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作者：
Yiming Quan;L. Lau;G. Roberts;Xiaolin Meng
基于全球导航卫星系统(GNSS)载波相位的高精度定位技术在大地测量、姿态确定、工程测量和农业应用中得到了广泛的应用。随着GNSS的现代化，多星座、多频率数据处理成为当前GNSS研究的热点之一。GNSS开发当局对新信号进行了更好的设计，旨在为民用用户快速捕获信号，减少受干扰和多径的影响，并具有较低的测量噪声。然而，新的信号在实践中有多好？本文件的目的是对新获得的信号进行早期评估，并对其他现有信号进行评估。通过查看多个GNSS(GPS、GLONASS、Galileo、BDS和QZSS)的零基线双差(DD)CP残差来评估它们的信号质量。在已知短基线的情况下，从精度、精度和固定解可获得性等方面研究了多个GNSS多频信号对单历元定位的影响。
Global Navigation Satellite Systems (GNSS) Carrier Phase (CP)-based high-precision positioning techniques have been widely used in geodesy, attitude determination, engineering survey and agricultural applications. With the modernisation of GNSS, multi-constellation and multi-frequency data processing is one of the foci of current GNSS research. The GNSS development authorities have better designs for the new signals, which are aimed for fast acquisition for civil users, less susceptible to interference and multipath, and having lower measurement noise. However, how good are the new signals in practice? The aim of this paper is to provide an early assessment of the newly available signals as well as assessment of the other currently available signals. The signal quality of the multi-GNSS (GPS, GLONASS, Galileo, BDS and QZSS) is assessed by looking at their zero-baseline Double Difference (DD) CP residuals. The impacts of multi-GNSS multi-frequency signals on single-epoch positioning are investigated in terms of accuracy, precision and fixed solution availability with known short baselines.