Advanced GNSS Techniques
Course Overview
Master complex GNSS surveying methods and error mitigation strategies to enhance your surveying capabilities and accuracy.
Duration
4 weeks
Difficulty
Advanced
Prerequisites
Basic GNSS knowledge
Course Modules
1. RTK and PPK Surveying
Learn advanced Real-Time Kinematic (RTK) and Post-Processed Kinematic (PPK) techniques for high-precision GNSS surveying.
- RTK principles and best practices
- PPK workflows and data processing
- Comparing RTK and PPK: pros and cons
- Troubleshooting common RTK/PPK issues
2. Network RTK and Virtual Reference Stations
Explore the benefits and implementation of Network RTK systems and Virtual Reference Stations (VRS).
- Network RTK concepts and infrastructure
- VRS technology and its advantages
- Implementing and using Network RTK/VRS in surveying projects
- Quality control and accuracy assessment
3. GNSS Error Sources and Mitigation Techniques
Gain in-depth knowledge of GNSS error sources and learn advanced strategies to mitigate their effects.
- Atmospheric errors: ionospheric and tropospheric effects
- Multipath detection and mitigation
- Satellite geometry and DOP factors
- Advanced antenna design and calibration
4. Multi-constellation GNSS Processing
Master the techniques for integrating and processing data from multiple GNSS constellations.
- Overview of GNSS constellations: GPS, GLONASS, Galileo, BeiDou
- Inter-system biases and calibration
- Multi-constellation data processing workflows
- Enhancing accuracy and reliability with multi-GNSS solutions
Practical Exercises
Hands-on GNSS Field Work
Apply your knowledge through a series of practical exercises designed to reinforce advanced GNSS techniques.
- Conduct RTK and PPK surveys in challenging environments
- Set up and use Network RTK/VRS for a surveying project
- Analyze and mitigate GNSS errors in real-world scenarios
- Process and compare multi-constellation GNSS data
Learning Resources
Recommended Reading
- GNSS for Land Surveyors, 4th Edition by Jan Van Sickle
- GPS Satellite Surveying by Alfred Leick, et al.
- Error Analysis of GNSS Measurements by Murat Erdoğan
Software and Tools
- Trimble Business Center
- Leica Infinity
- RTKLIB (open-source GNSS processing software)
- GNSS Planning Online (satellite visibility tool)
Assessment and Certification
Course Evaluation
Your mastery of advanced GNSS techniques will be assessed through:
- Weekly quizzes on theoretical concepts
- Practical field exercise reports
- Final project: Plan and execute a complex GNSS survey, including data processing and analysis
Upon successful completion of the course, you will receive a certificate of achievement in Advanced GNSS Techniques from Land Surveyors United.
Course Instructors
Dr. Jane Doe
PhD in Geomatics, 15+ years experience in GNSS surveying and research
John Smith
Licensed Professional Surveyor, GNSS specialist with 20+ years field experience
Student Feedback
"This course dramatically improved my understanding of advanced GNSS techniques. The hands-on exercises were particularly valuable."
- Sarah J., Professional Surveyor
"The instructors' expertise and real-world examples made complex concepts easy to grasp. Highly recommended for any surveyor looking to enhance their GNSS skills."
- Michael T., Geomatics Engineer
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