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2023 Multi-GNSS Precise Point Positioning and PRIDE PPP-AR Short Course

Date(s): September 25 & 27, 2023

This course provides a study of high-precision multi-GNSS precise point processing (PPP) using the latest version of the open-source software PRIDE PPP-AR. The course will cover the application of PPP in various fields such as geodesy, seismology, aerial photogrammetry, engineering surveys, and meteorology. Participants will learn the PPP fundamentals and techniques for undifferenced ambiguity resolution, as well as hands-on experience with the PRIDE PPP-AR software. The features and capabilities of PRIDE PPP-AR will be discussed and demonstrated, with a focus on setting options for high-precision results, analyzing output, and applying the software to scientific research and engineering projects. By the end of the course, participants will have a basic understanding of high-precision multi-GNSS PPP and be equipped to use PRIDE PPP-AR software effectively.

Primary Audience: researchers, students, and professionals in the field of geodesy, GNSS, or related fields who have specific research or application needs for GNSS high-precision data processing, and have a basic understanding of GNSS data processing principles and a current interest in utilizing this technology.

Secondary Audience: individuals who are interested in geodesy or GNSS technology and who have little to no prior experience with the principles of GNSS data processing. These individuals may be students, hobbyists, or professionals from a variety of fields who are looking to gain a basic understanding of GNSS data processing and its applications.

Learning Objectives

Participants who complete this course will gain a well-rounded understanding of the theory of multi-GNSS precise point positioning (PPP) and undifferenced ambiguity resolution. They will be skilled in handling phase and code biases, satellite attitude corrections, troposphere retrieval, and higher-order ionosphere corrections to achieve high-precision. They will be able to effectively use the PRIDE PPP-AR software to perform static and kinematic PPP processing and analyze the results for various scientific and engineering applications including geodesy, seismology, aerial photogrammetry, engineering surveys, and meteorology.

Assessment of the participants’ understanding of the course material will be done through hands-on exercises, which will be assigned during the course and reviewed in the subsequent class. Participants can compare their completed exercises to determine if they have achieved their learning goals.

Prerequisite, Computers and Data

The primary tool in the workshop will be the open-source software PRIDE PPP-AR, which is available in both command-line interface for Linux systems and graphical user interface for macOS/Windows systems. This is a virtual class, so everybody should have a continuous internet connection.

Basic knowledge of GNSS and Linux.

A laptop or desktop computer to support Linux or macOS, gfortran, gcc, wget, python3.

Software and instructions can be found on the GNSS-PPP GitHub Homepage


Course Materials and Examples

Session 1 (September 25, 2023, 1:00-3:30pm UTC) View Recording

  • Fundamentals of High-Precision GNSS PPP-AR
  • PRIDE PPP-AR Software Overview and Basic Operation
  • Processing Exercise

Session 2 (September 27, 2023, 1:00-3:30pm UTC) View Recording

  • High-Precision PPP-AR Processing for Various Scenarios
  • Exercise Review and Explanations


Jianghui Geng, GNSS Research Center of Wuhan University

Jihang Lin, GNSS Research Center of Wuhan University

Charlie Sievers, EarthScope Consortium


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