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Monday, September 8 • 8:30am - 5:00pm
Introduction to GNSS

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The use of the Global Navigation Satellite Systems (GNSS) has become pervasive in the GIS and Surveying communities, and with anyone who needs or collects data that has a geographic or locational component.  Local, state and federal agencies regularly use it for a myriad of purposes including E911, utility locations, pavement inventories, biological studies and more.  In the private sector, surveyors and other consultants use GNSS in their everyday work.  Even hikers, boaters and hunters rely on GNSS to document their fishing holes, hunting blinds and to leave virtual bread crumb trails.  This data finds its way into thousands of different databases and maps and is used in every conceivable application.  GNSS is a highly specialized technology that, by its very nature, is prone to accidental misapplication; and it will produce inaccurate results that are not recognized to the untrained user.  This workshop will, in a non-technical, yet thorough manner, explore the GNSS satellite constellations (GPS, GLONASS and others), how geographic positions are determined, sources of errors in GNSS data collection, and the types of GNSS receivers with the goal of arming users with the ability to achieve the results they expect and need in their work.


Specific topics include:

  • The Global Navigation Satellite System – satellites, control and receivers
  • How GNSS works - Measurements from 12,000 miles up
  • Latitude and Longitude
  • Factors affecting the accuracy of GPS measurements
  • Determining the accuracy of my GPS measurements
  • How to obtain more accurate results
  • Types of GNSS receivers
  • Methods of making measurements – Static, Rapid Static, RTK
  • Review of all GNSS, including GPS, GLONASS (Russian), Beidou (Chinese) and others

Intended Audience:  Any person who uses a GNSS receiver, or who relies on or uses geographic locations determined by GNSS measurements.

avatar for Keri Brennan, GISP

Keri Brennan, GISP

Consultant, The Schneider Corporation
Keri is a Senior GIS Consultant with the Schneider Corporation in Indianapolis, Indiana.  As a Senior GIS Consultant for the Schneider Corporation, Ms. Brennan primarily works with key clients on staff augmentation, helping these clients move their GIS to a full enterprise solution. She also is the Product Manager for IDAM – the integrated damage assessment model application which assists emergency management and assessment... Read More →
avatar for Tripp Corbin, GISP

Tripp Corbin, GISP

CEO, eGIS Associates, Inc.
Tripp Corbin has over 20 years of GIS, Surveying and mapping experience. He is a recognized expert in the field of geospatial technology. As a GIS Certified Professional and CompTIA Certified trainer, he teaches GIS classes and workshops throughout the US and Canada. Tripp is an active member of the GIS Community serving on the GITA Southeast Board and the GISP Application Review Committee. He is also President Elect of URISA and recipient of the... Read More →

Monday September 8, 2014 8:30am - 5:00pm
Grand Ballroom E

Attendees (8)