Research and learning resources

• Canadian Space Geodesy Forum
• Differential GNSS
• GIS for the Curious, a guide to Geographic Information Systems
• Global Positioning System (GPS) Information
• GPS Analysis and Positioning Software (GAPS) Online Precise Point Positioning (PPP) Data Processing
• GPS Navigation Message Ephemeris Accuracy - Daily Analysis
• GPS Receiver Manufacturers, System Integrators, Equipment Suppliers, and Service Providers
• GPS World
  • GPS World Innovation Column Catalogue
  • GPS World Innovation: The Early Years
  • GPS World Tech Talk (topics include GPS modernization, precise point positioning, software receivers, atmospheric effects, GLONASS and more)
• Guide to GPS Positioning
• How Does GPS Work? - A Brief, Simple Explanation
• Image Fusion Examples
• Iraq and GPS: Some Frequently Asked Questions
• Latest GLONASS Constellation Status
  • GLONASS Constellation Plot
• Latest GPS Constellation Status
  • GPS Constellation Plot
• Online Tutorial in Geodesy
• The Precise Point Positioning Software Centre
• Spaceborne GPS Information
• Ten Tips for New (and not so new) Owners of a GPS Unit
• Time and Timekeeping
  • A Few Facts Concerning GMT, UT, and the RGO
  • Fredericton Military Compound Sundial
  • Just Wait a Second: Leap Second News
  • Recording Diagram of Canadian Time Signal Station CHU's 31 December 2005 Leap Second
  • UTC Leap Second, 31 December 2008: Greenwich Time Signal (7 pips) and Big Ben on BBC Radio 5 Live
  • Article on the 30 June 2012 UTC leap second
  • Article on the 30 June 2015 UTC leap second
• Topographical Density Models
  • 1 arc-degree grid spacing
  • 5 arc-minutes grid spacing
  • 30 arc-seconds grid spacing
• UNB Fredericton - A Hotbed of GPS Research
• UNB Vienna Mapping Function Service
• UNB Wide Area Augmentation System Monitoring Station
• UNBJ/UNB1: UNB's IGS Reference Station
• UNB3 Neutral Atmosphere (Troposphere) Propagation Delay Model
• UNB3m Neutral Atmosphere Delay Model