ION Webinars

ION Webinars provide timely, engaging presentations on topics of interest to the PNT community.

To be notified of future Webinars, sign up for our email list or follow us on social media.

Upcoming Webinar

First results from three years of GNSS interference monitoring from low Earth orbit
Monday, February 7, 2022 at 1:00 p.m. EST

Presented by: Dr. Todd E. Humphreys and Dr. Lakshay Narula, The University of Texas at Austin

Register for the Webinar

Registration is complimentary. Sign in or sign up for a free account after clicking above.

Observation of terrestrial GNSS interference (jamming and spoofing) from low Earth orbit (LEO) is a uniquely effective technique for characterizing the scope, strength, and structure of interference and for estimating transmitter locations. Such details are useful for situational awareness, interference deterrence, and the development of interference-hardened GNSS receivers. This paper presents the results of a three-year study of global interference, with emphasis on a particularly powerful interference source active in Syria since 2017. It then explores the implications of such interference for GNSS receiver operation and design.


Webinar Archive

Date Title Presented By
Dec. 14, 2021 Navigation using carrier Doppler shift from a LEO constellation: TRANSIT on steroids Mark L. Psiaki
Nov. 18, 2021 Data-driven protection levels for camera and 3D map-based safe urban localization Shubh Gupta
Oct. 28, 2021 Air Data Fault Detection and Isolation for Small UAS Using Integrity Monitoring Framework Kerry Sun
Oct. 18, 2021 How Insect Brains Perform Dead Reckoning Dr. Barbara Webb
Sept. 14, 2021 Performance assessment of GNSS diffraction models in urban areas Guohao Zhang and Dr. Li-Ta Hsu
August 17, 2021 Overbounding the effect of uncertain Gauss-Markov noise in Kalman filtering Dr. Steve Langel
July 23, 2021 GNSS Spoofing Detection through Spatial Processing Dr. Fabian Rothmaier
June 28, 2021 Factor Graph Optimization for GNSS/INS Integration: A Comparison with the Extended Kalman Filter Dr. Li-Ta Hsu
June 15, 2021 GAO Report, “Defense Navigation Capabilities” Chi Mai and Jenn Beddor, U.S. GAO
May 27, 2021 Hurricane Hunters: Navigating a Plane through a Hurricane Lt. Cmdr. Brian Richards
May 11, 2021 Multi‐slices navigation approach for unknown 3D environments using micro aerial vehicles Dr. Haytham Mohamed
April 20, 2021 GNSS interference mitigation: A measurement and position domain assessment Dr. Daniele Borio and Dr. Ciro Gioia
March 23, 2021 Navigation of the Mars 2020 Perseverance Rover from Earth to Jezero Crater Dr. Gerhard Kruizinga

February 18, 2021

Effect of GPS III weighted voting on P(Y) receiver processing performance Dr. Karl Kovach

December 10, 2020

Automatic detection of ionospheric scintillation-like GNSS satellite oscillator anomaly using a machine-learning algorithm Yunxiang (Leo) Liu and Dr. Y. Jade Morton
November 12, 2020 Residual-based multi-filter methodology for all-source fault detection, exclusion, and performance monitoring Dr. Juan Jurado
October 22, 2020

Relative navigation of fixed-wing aircraft in GPS-denied environments

Dr. Kevin Brink
August 20, 2020

Multi-Constellation ARAIM Exploiting Satellite Motion

Dr. Mathieu Joerger
July 9, 2020

Improving Environment Detection by Behavior Association for Context-Adaptive Navigation

Dr. Han Gao
June 25, 2020

When GNSS fails, what will you do? MarRINav!
Co-sponsored by ION, the Resilient Navigation and Timing Foundation, and the Royal Institute of Navigation

Jonathan Turner, Alan Grant and Dana Goward
May 28, 2020 Impact of Sample Correlation on SISRE Overbound for ARAIM Dr. Santiago Perea
April 16, 2020 Flight Results of GPS-Based Attitude Determination for the Canadian CASSIOPE Satellite Dr. André Hauschild
March 5, 2020 Gaussian-Pareto Overbounding of DGNSS Pseudoranges from CORS Dr. Jordan D. Larson
December 5, 2019 LTE Receiver Design and Multipath Analysis for Navigation in Urban Environments Kimia Shamaei and Zak Kassas