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2021 PNT Webinar Symposium

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2021 PNT Symposium Banner Graphic

Once again, due to the corona virus pandemic, this year's annual PNT symposium was a virtual event—a webinar in which presenters and participants were connected and communicated via the Internet using Zoom and YouTube livestreaming technologies.


As was the case last year, this year’s PNT webinar symposium was held over two half days: Wednesday morning, October 27, and Thursday morning, October 28. Each webinar morning featured interesting and informative invited presentations. Except for Brad Parkinson's lead-off  presentation on Day 1, which lasted an hour, all ten other invited presentations lasted 30 minutes, including Q&A. There were no student presentations again this year, and unfortunately, we still were not able to find a way to include a virtual banquet and dinner speaker during this year's virtual symposium. We are, of course, hoping to return to our usual in-person symposium format next fall.

Invited Speakers

Continuing our PNT Symposium tradition, we invited a variety of prominent U.S. and international academic, business and government leaders to speak on their PNT-related research and development efforts. Invitees included U.S. government representatives, industry representatives, academic representatives, and a few invitees with a unique PNT perspective.

Symposium Attendees

As has been the case throughout the 15 years we have been offering this annual symposium,  attendees represented a cross-section of the PNT Community, including: Stanford faculty, researchers and grad students, U.S. government representatives, SCPNT Industrial Member representatives (Boeing, CIA Research Labs, Lockheed-Martin, Northrop Grumman, Qualcomm, Trimble Navigation, L3Harris, Polaris Wireless, etc.) and other invited guests.

2021 Symposium Flyer & Agenda (PDF)

2021 PNT Symposium Flyer & Agenda Thumbnail Image

View/Download 2021 PNT Symposium Flyer & Agenda PDF

2021 PNT Webinar Symposium Invited Presentations

The table below displays the invited speaker presentations from both days of the 2021 PNT Webinar Symposium. The presentations are listed alphabetically by the presenter's last name.

While all of the presentations were recorded on both days of the 2021 webinar symposium, we have only received permission from some of the speakers to display their video presentation and/or a PDF file of their presentation slides.

For those presentations which we are permitted to display, click on the Play Video button preceding the presentation title to open an SCPNT Video Gallery webpage containing an unlisted (not searchable) YouTube video of that presentation.

Also, for those presentations for which we are permitted to display presentation slides, click on any presentation title in blue text to view/download the presentation PDF file.

2021 PNT Webinar Symposium • Invited Presentations

Invited SpeakerAffilationPresentation Title (Blue=Link to Presentation File)
Penina AxelradUniv. of Colorado & NIST
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Tracking Clustered CubeSat Deployments

John BurkeDARPAAtomic frequency references and sensor
Todd ElyNASA JPLDeep Space Atomic Clock (DSAC)
Eric FrewUniversity of Colorado, Boulder
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Control and Navigation of Unmanned Aircraft in Complex Atmospheric Phenomena

Andrew HansenDepartment of Transportation, Volpe
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Complementary PNT Evaluation

Gabriella HarariStanford University
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Using Location data for Mental Health

Tonya LadwigLockheed Martin
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The Future of Assured PNT

Sherman Lo & Todd WalterStanford University
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Welome Comments & Announcements

Guttorm OpshaugQualcomm
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Navigating using 5G

Brad ParkinsonStanford University, Emeritus
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Wouter PelgrumBlue Origin
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Navigating to Space and Back at Blue Origin

Mac SchwagerStanford University
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Robots that Work Together, Robots that Play Together