GNSS Positioning
DISCLAIMER
Before undertaking any on-demand effort, you should review the rules of your licensing/certifying entity.
It’s your responsibility to determine whether this on-demand course meets your continuing education requirements.
You must take and pass a quiz to receive credit. You can take the quiz as many times as needed and there is no time limit on the quiz.
Once the quiz is completed, you will be asked to download your certificate.
**Any on-demand programs that qualify for AIA or LACES credit will require an additional 2 business weeks for processing.
**AIA credit is not available in USB format.
Streamable MP4/PDF
You will receive an automated email letting you know when your On-Demand package is available approximately 3 business days after the date of the live event or the date of your order, whichever is later. This email will contain links to the video recording, materials, and program quiz.
To track your purchase, you will need to create an account on the website using the email address used for your registration.
For AIA requirements only, the on-demand recording will have occasional question prompts that will not allow the video to progress unless they are answered, and you will not be able to skip forward while watching the video.
Please note, if you attempt to resume watching the video on a separate device, your progress will not be saved.
Click the link which appears at the end of the video to be taken to the course quiz.
You will have unlimited access to the on-demand video recording, and it will never expire.
**Any streamable on-demand programs that qualify for AIA or LACES credit will require an additional 2 business weeks for processing.
USB MP4/PDF
HalfMoon will mail these materials via USPS.
USB orders ship approximately 3 business days after the program takes place or after the order is placed, whichever date is later. Please allow an additional 7-10 business days for shipping.
The link to the quiz will be available in a PDF in your USB drive marked QUIZ.
HalfMoon will contact you and issue a full refund if the product you ordered is not available. However, refunds will not be issued if completion certificates are requested.
Please contact HalfMoon Education if you have any questions during the process of taking this course. (715) 835-5900 or qchapman@halfmoonseminars.org
**Any USB on-demand programs that qualify for LACES credit will require an additional 2 business weeks for processing.
**AIA credit is not available in USB format.
Agenda
Webinar instructions will be emailed before the date of the webinar.
Please log into the webinar 15 – 30 minutes before start time.
Monday, May 10, 2021
8:30 am – 4:00 pm CDT (including a 60-min. break)
Presented by Dr. Thomas H. Meyer
Agenda:
Observation Modes
Absolute positioning
• Autonomous
• Precise point positioning (PPP)
• Differenti al GPS (DGPS)
Relative positioning
• Phase differencing
Kinematic
Static
• CORS • Atop a tripod
• Static post-processing and OPUS
Real-time
• Real-time kinematic
• Real-time network
Independence of Observations: How Long Should We Wait?
What is independence? What is correlation? Bias?
Occupation duration
Examples of occupation duration with various epoch rates
Discussion of the constellation
• Orbital planes, slots, overview of SVs, 12-hr orbital period
Heighting example
Error Budget
Range-pole centering error
Multipath
Geometry
• Dilutions of precision
Environment
• Ionosphere → multi-frequency receivers
• Troposphere
• Signal-to-noise ratio
Ephemeris
• Positioning discussion: trilateration
• Control → orbits
• Predicted (broadcast) vs. modeled (precise)
• Comparison of ephemeris accuracies
Ranging
• Overview of how ranging works
• C/A code, P code
• Phase observable
To the Future
Reference frames, geodesy
• NAD 83 non-geocentricity, WGS 84, ITRF
• NATRF 2022
• Time-dependent positioning, Stable North American Ref. Frame (SNARF)
GPS modernization
• L1C, L2C, L5
• New navigation message
Webinar Instructions
All attendees must log-on through their own email – attendees may not watch together if they wish to earn continuing education credit. HalfMoon Education Inc. must be able to prove attendance if either the attendee or HalfMoon Education Inc. is audited.
Certificates of completion can be downloaded in PDF form upon passing a short quiz. A link to the quiz will be sent to each qualifying attendee immediately after the webinar. The certificate can be downloaded from the Results page of the quiz upon scoring 80% or higher.
Webinars are presented via GoToWebinar, an easy-to-use application that can be run on most systems and tablets. Instructions and login information will be provided in an email sent close to the date of the webinar. It is highly recommended that you download, install and test the application before the webinar begins by clicking on the link in the email.
GoToWebinar App requirements:
Windows 7 – 10 or Mac OSX Mavericks (10.9) – macOS Catalina (10.15)
Web Browser:
The two most recent version of the following browsers:
Google Chrome, Mozilla Firefox, Apple Safari, Microsoft Edge
Internet Explorer v11 (or later) with Flash enabled
Internet connection: Minimum of 1Mbps Hardware: 2GB RAM or more
For more information, visit the Support section at www.gotowebinar.com
Credits
Land Surveyors:
6.0 PDHs
(FL, MO, and TN Pending Approval, NJ, RI – No Credit Offered)
Professional/Civil Engineers:
6.0 PDHs
Continuing Education Credit Information
These webinars are open to the public. They offer continuing education credits to land surveyors in most states. Course approvals have been applied for in Florida, Missouri, and Tennessee, which are pending. Continuing education credits are not being sought in New Jersey or Rhode Island. HalfMoon Education is deemed an approved continuing education provider in New York land surveyors.
Continuing education credit is offered to professional and civil engineers licensed in all states. HalfMoon Education is an approved continuing education sponsor for engineers in Florida (Provider No. 0004647), Indiana (License No. CE21700059), Maryland, New Jersey (Approval No. 24GP00000700), North Carolina (S-0130), and North Dakota.
HalfMoon Education is deemed an approved continuing education provider for engineers and land surveyors licensed in New York (Regulations of the Commissioner §68.14(i)(2) and §69-1.5(i)(2)). The Landscape Architecture Continuing Education System has approved HalfMoon Education Inc. as a continuing education sponsor.
HalfMoon Education is an approved continuing education sponsor for land surveyors licensed in Indiana (License No. CE21700059), Maryland, North Carolina (S-0130), and North Dakota.
Tracking the Railroads is approved by the American Planner Association AICP for
CM | 4.0 for Certified Planners (Course No. 9212632).
Speakers
Dr. Thomas H. Meyer, Ph.D.
Professor of Geodesy, University of Connecticut
Dr. Meyer is a professor in the Department of Natural Resources and the Environment at UConn’s College of Agriculture, Health and Natural Resources (CAHNR). He is a member of the American Society of Civil Engineers and the American Society for Photogrammetry and Remote Sensing, and he is a fellow and past president (2016, 2019) of the American Association for Geodetic Surveying. Dr. Meyer is a past president (2006-2007) of the Geomatics Society of New England (previously known as the New England Section ACSM) and a member of the editorial boards of the Journal of Surveying Engineering and Surveying and Land Information Science. Dr. Meyer earned his Ph.D. degree from Texas A&M University (College Station, 1998) where he was a research associate in the Mapping Sciences Laboratory. He was named a UConn Teaching Fellow (2015), and he has taught geomatics courses at the graduate and undergraduate levels in geodesy, geographic information science, digital terrain modeling, spatial statistics, and global navigation satellite system surveying. Dr. Meyer has authored an undergraduate-level geodesy textbook and numerous peer-reviewed papers about surveying and mapping, and he teaches professional education seminars for surveyors throughout New England and the United States.