LoginPrecise GNSS
(ECTS: 6; SWS: 4)Lecturers
Dr.-Ing. Peter Steigenberger, Univ.-Prof. Dr.phil.nat. Urs HugentoblerTheory classes (2h) and labs (2h). The aim of the course is to
- get familiar with GNSS, with models involved, and with processing strategies used for precise GNSS positioning applications
- get experience with GNSS data in practical work.
Lectures in Precise GNSS
Lecturers
Univ.-Prof. Dr.phil.nat. Urs HugentoblerContents
- review of GNSS, signal structure, data formats
- linear combinations and differences of observations
- models for atmospheric corrections
- models for station displacements
- ambiguity resolution strategies
- positioning, network adjustment, datum definition
Literature
- Hofmann-Wellenhof, B., Lichtenegger, H., Wasle, E. (2008): GNSS - Global Navigation Satellite Systems, ISBN: 978-3-211-73012-6, Springer Verlag
- Kaplan (Ed.) (1996): Understanding GPS: Principles and Applications. Artech House
- Theunissen, Kleusberg (Eds.) (1998): GPS for Geodesy. Springer
Downloads
Chapter 1: Introduction (1,4 MB)Chapter 2: Global Navigation Satellite Systems (1,1 MB)
Chapter 3: Signal Structure of the GPS (1,1 MB)
Chapter 4: Observation Equations (229 KB)
Chapter 5: Differences and Linear Combinations (359 KB)
Chapter 6: Pseudorange Positioning (219 KB)
Chapter 7:Tropospheric Corrections (2,5 MB)
Chapter 8: Ionospheric Corrections (2,0 MB)
Chapter 9: Classes of Errors (105 KB)
Chapter 10: International GNSS Service (IGS) (1,5 MB)
Chapter 11: GNSS Satellite Orbits (2,7 MB)
Chapter 12: Station Displacement Models (2,7 MB)
Chapter 13: Technique-specific Problems (1,4 MB)
WS 10/11: Chapter 14: GIOVE Observations (1,9 MB)
Chapter 15: GPS Seismology (1,2 MB)
Chapter 16: Multipath (895 KB)
WS 10/11: Chapter 17: Precise Point Positioning (520 KB)
Chapter 18: GNSS on Low Earth Orbiters (4,4 MB)
Labs in Precise GNSS
Lecturers
Dr.-Ing. Peter Steigenberger
Contents
- development of a simple point positioning tool using MATLAB
- experiments using a scientific software package (Bernese GPS Software) to study the impact of different effects and analysis strategies on positioning results.
Prerequisites
- basic MATLAB knowledge
- least squares adjustment
Literature
- GPS Interface Control Document, ICD-GPS-200C
- RINEX 2.11 format description
- Bernese User Manual
- Bernese Tutorial
The labs start on 31 October 2011 at 8:00 in room 3238
No Labs on 09 January 2012 due to ESPACE workshop at LMU
Exercise 1: Read and Plot Observations
Downloads
Introduction Exercise 1: Read and Plot Observations (132 KB)Exercise 1: Read and Plot Observations (39 KB)
readrnx (8 KB)
gpstime.m (2 KB)
Exercise 2: GPS Navigation Message
Downloads
Introduction Exercise 2: GPS Navigation Message (216 KB)Exercise 2: GPS Navigation Message (31 KB)
prnnav.m (1 KB)
readnav.m (3 KB)
coast0.mat (67 KB)
Exercise 3: Residuals and Corrections
Downloads
Exercise 3: Residuals and Corrections (37 KB)Introduction Exercise 3: Residuals and Corrections (88 KB)
Exercise 4: Positioning with Pseudoranges
Downloads
Exercise 4: Positioning with Pseudoranges (40 KB)Introduction Exercise 4: Positioning with Pseudoranges (164 KB)
Exercise 5: First Steps with the Bernese GPS Software
Downloads
Exercise 5: Bernese Introduction (34 KB)First Steps with the Bernese GPS Software (861 KB)
Introduction Exercise 5: Bernese GPS Software (431 KB)
Exercise 6: Influence of the Troposphere
Information on GMF, GPT, and VMF1Downloads
Exercise 6: Influence of the Troposphere (31 KB)Introduction Exercise 6: Influence of the Troposphere (295 KB)
Exercise 7: Influence of the Ionosphere
Global ionosphere maps of the CODE IGS analysis centerDownloads
Exercise 7: Influence of the Ionosphere (28 KB)Introduction Exercise 7: Influence of the Ionosphere (396 KB)
Exercise 8: Ambiguity Resolution
Downloads
Exercise 8: Ambituity Resolution (36 KB)Introduction Exercise 8: Ambiguity Resolution (31 KB)
Exam
Written exam at the end of the semester.
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