GNSS Education Archives

A Technical Primer: How GNSS Works

July 16, 2024

The incredible but imperfect mechanics of measuring pseudorange — and how we get closer to perfection
Once a technology has been around long enough, you start to take it for granted.…

NovAtel Review and Top GNSS Correction Service Alternatives [2024]

July 9, 2024

Whether collecting location data for tasks like urban planning and underground pipe location or measuring land for property documentation and construction planning, GNSS correction services are not just useful but…

WGS84: What is the World Geodetic System 1984

June 5, 2024

The World Geodetic System (WGS) is a standard that defines Earth-centered, Earth-fixed (ECEF) models, Earth gravitational, and World Magnetic models. In 1983, a new realization of WGS—WGS84—was developed from modifications…

WGS84 vs. NAD83 vs. ITRF 2014: What are the differences?

June 3, 2024

Geodetic reference datums are central to geospatial positioning applications such as Global Positioning System (GPS) and Geographic Information Systems (GIS), forming the foundation for geospatial mapping and inertial navigation systems.…

Loosely Coupled & Tightly Coupled INS & GNSS [2024 Guide]

June 1, 2024

Learn about the differences between loose and tight coupling in GNSS, and why tight coupling provides greater precision to power more reliable solutions.

Navigating the Solar Maximum With RTK Corrections

May 23, 2024

From Earth, the sun looks like a steady celestial presence, a small but powerful speck that reliably shares its light day in and day out. But a closer look at…

NAD83: What is North American Datum of 1983

May 23, 2024

The North American Datum of 1983, or NAD83, is a crucial system used for mapping and navigation across North America. It was developed to replace the older NAD27 and marked…

ITRF: What is the International Terrestrial Reference Frame? [2024]

May 20, 2024

The International Terrestrial Reference Frame (ITRF) is a reference frame for earth sciences and global positioning derived from the International Terrestrial Reference System (ITRS). The ITRF is approved by the…

Calibration Guide: How INS & RTK Calibration Works [2024]

April 22, 2024

Advancements in location technology have catalyzed fields from agriculture to surveying and automated vehicles. From inertial navigation systems to RTK technology, ultra-precise location information has unlimited applications. However, sensors can…

What are RTK Networks? The Complete Guide to Location Precision in 2024

April 20, 2024

Whether navigating drones over vast agricultural landscapes or guiding survey robots through intricate urban environments, the accuracy provided by RTK-enabled devices is unmatched.In the realm of precision location and navigation,…