PPPLib: An open-source software for precise point positioning using GPS, BeiDou, Galileo, GLONASS, and QZSS with multi-f
- PDF / 1,134,433 Bytes
- 7 Pages / 595.276 x 790.866 pts Page_size
- 73 Downloads / 362 Views
GPS TOOLBOX
PPPLib: An open‑source software for precise point positioning using GPS, BeiDou, Galileo, GLONASS, and QZSS with multi‑frequency observations Chao Chen1,2 · Guobin Chang1,2 Received: 14 July 2020 / Accepted: 28 October 2020 © Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract Precise Point Positioning Library (PPPLib) is a multi-GNSS data processing software designed to process multi-frequency data from GPS, BeiDou, Galileo, GLONASS, and QZSS. PPPLib is written in the C/C++ programming language. It can compile and run on both Linux and Windows operating systems. PPPLib mainly performs precise point positioning from single to triple frequency based on either ionospheric-free or uncombined observations. Moreover, it solves for abundant parameters, including position, tropospheric delay, ionospheric delay, and ambiguity information. Useful scripts and visualization tools are also provided for data download, batch processing, or solution presentation. We give a preliminary review, including positioning accuracy and convergence time of PPP using dual-frequency, ionospheric-free from single system to multi-GNSS, to show the working status of the current version of the software. In addition, the software also supports postprocessing kinematic mode and INS/GNSS loosely coupled mode for kinematic positioning. Keywords GNSS · Precise point positioning (PPP) · Multi-frequency · Open-source
Introduction Global Navigation Satellite Systems (GNSS) are upgraded, and more modernized satellites bring opportunities and challenges to Precise Point Positioning (PPP), which is an absolute positioning technology that can operate on a global The GPS Tool Box is a column dedicated to highlighting algorithms and source code utilized by GPS engineers and scientists. If you have an interesting program or software package you would like to share with our readers, please pass it along; e-mail it to us at [email protected]. To comment on any of the source code discussed here, or to download source code, visit our website at http://www.ngs.noaa.gov/gps-toolbox. This column is edited by Stephen Hilla, National Geodetic Survey, NOAA, Silver Spring, Maryland, and Mike Craymer, Geodetic Survey Division, Natural Resources Canada, Ottawa, Ontario, Canada. * Guobin Chang [email protected] 1
NASG Key Laboratory of Land Environment and Disaster Monitoring, China University of Mining and Technology, Xuzhou 221116, China
School of Environmental Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221116, China
2
scale (Malys and Jensen 1990; Zumberge et al. 1997). Currently, most GNSS satellites are transmitting signals on three or even more frequencies (Li et al. 2020b), e.g., the new Block IIF of Global Positioning System (GPS) can transmit another civil signal L5 (1176.45 MHz) in addition to the existing L1 (1575.42 MHz) and L2 (1227.60 MHz). The GLONASS-K and part of GLONASS-M satellites have started to transmit the G3 signal (1202.025 MHz) with code division multipl
Data Loading...
