How To: Achieve Centimeter Accuracy in GNSS Impaired Environments

by TNyland 3. May 2019 12:21

Technology has transformed our way of communicating and performing our work-based tasks that help us maximize our output, complete jobs quicker, and most importantly, increase our safety in the field. The New World of Tech is gaining momentum, and while we haven’t conquered it by any means, the past decades have provided us with substantial milestones that are helping us pave the way to an even more connected future.

Satellites are steadily multiplying and building a technological atmosphere providing humans with faster connection speeds and modernizing the Earth into an autonomous civilization. GNSS, the Global Navigation Satellite System, is helping us shape our future. GNSS is becoming the world’s GPS: providing us with coordinates for whatever we may need. Whether we are looking to construct new buildings, provide more telecommunications for our 5G future, or to simply find where we are going when we get lost, GNSS provides autonomous geo-spatial positioning with global coverage to help us discover, build, and implement.

Users who integrate GNSS receivers into their workflow have their position triangulated by grabbing signals from at least four GNSS satellite signals from multiple satellite navigation systems that increase a user’s accuracy.

Discovering, building, and implementing, however, can be tricky when you happen to arrive in a GNSS impaired environment.

A GNSS impaired environment happens due to the obstruction of the signal from buildings, terrains, or anything that causes the signal to be blocked. In addition, a GNSS satellite signal can be compared to a 50-watt lightbulb, making it an already weak signal to begin with.

The need for real-time, high-accuracy GNSS positioning is growing. Regulatory requirements on spatial data accuracy is increasing and within some industries less than the utmost precision is acceptable. Collecting highly accurate horizontal and vertical data is achievable in some areas, but how do we reach centimeter accuracy in GNSS impaired environments?

The Power of Three
You can achieve centimeter accuracy in GNSS impaired environments on assets located in alleyways, under trees, and even in the middle of a busy street by uniting hardware and software solutions from industry leaders:

Esri®: the leaders in GIS software for the field and office,

Eos®: the leaders in high-accuracy GNSS receives for BYOD,

Laser Technology, Inc®: The leaders in high-accuracy laser rangefinders and encoders.

To learn more about this solution and achieving centimeter accuracy in GNSS impaired environments, you can review the course recording presented by GIS Mapping experts or review the PDF of the PowerPoint presentation.

Centimeter Accuracy in GNSS Impaired Environments Course Recording
Recorded April 4, 2019

You can view the GNSS Mapping Webinar presentation clicking on the image below.


Enjoy these videos that take you through the full details, step-by-step, of the world’s first and only laser rangefinder mapping solution for Collector for ArcGIS®!

Go here for more information on any of these solutions.


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