ION Webinars

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Upcoming Webinars

Detecting GNSS Jamming and Spoofing on Android Devices
Date: Thursday, December 8, 12:00 p.m. EST
Presenters: Dennis Akos

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Global navigation satellite system (GNSS) location engines on Android devices provide location and navigation utility to billions of people worldwide. However, these location engines currently have very limited protection from threats to their position, navigation, and time (PNT) solutions. External sources of radio frequency interference (RFI) can render PNT information unusable. Even worse, false signals or spoofing can provide a false PNT solution to Android devices. To mitigate this, four detection methods were developed and evaluated using native location parameters within Android: Comparing the GNSS and network locations, checking the Android mock location flag, comparing the GNSS and Android system times, and observing the automatic gain control (AGC) and carrier-to-noise density (C/N0) signal metrics. These methods provide a powerful means to significantly increase the robustness of the Android GNSS-based PNT solution and are implemented in the GNSSAlarm Android application to demonstrate real-time jamming and spoofing detection.

Webinar Archive

Webinar Title Presented By
2022
November 15 Characterization and Performance Assessment of BeiDou-2 and BeiDou-3 Satellite Group Delays Dr. Oliver Montenbruck
October 27 Impact of GNSS-Band Radio Interference on Operational Avionics Dr. Michael Felux and Dr. Okuary Osechas
August 4 Mapping Bit to Symbol Unpredictability with Application to Galileo Open Service Navigation Message Authentication Dr. Cillian O’Driscoll and Dr. Ignacio Fernández-Hernández
July 13 National Strategy for Ocean Mapping Meredith Westington and CDR Briana Hillstrom
June 16 WAAS and the Ionosphere – A Historical Perspective: Monitoring Storms Dr. Lawrence Sparks
April 27 Results on GNSS Spoofing Mitigation Using Multiple Receivers Dr. Gustaf Hendeby
March 30 Urban positioning: 3D mapping-aided GNSS using dual-frequency pseudorange measurements from smartphones Hoi-Fung Ng
Feb. 22 Using GPS Data to Understand the Relationship Between Mobility Behavior and Well-Being Dr. Gabriella M. Harari
Feb. 7 First results from three years of GNSS interference monitoring from low Earth orbit Dr. Todd E. Humphreys and Dr. Lakshay Narula
2021
December 14 Navigation using carrier Doppler shift from a LEO constellation: TRANSIT on steroids Mark L. Psiaki
November 18 Data-driven protection levels for camera and 3D map-based safe urban localization Shubh Gupta
October 28 Air Data Fault Detection and Isolation for Small UAS Using Integrity Monitoring Framework Kerry Sun
October 18 How Insect Brains Perform Dead Reckoning Dr. Barbara Webb
September 14 Performance assessment of GNSS diffraction models in urban areas Guohao Zhang and Dr. Li-Ta Hsu
August 17 Overbounding the effect of uncertain Gauss-Markov noise in Kalman filtering Dr. Steve Langel
July 23 GNSS Spoofing Detection through Spatial Processing Dr. Fabian Rothmaier
June 28 Factor Graph Optimization for GNSS/INS Integration: A Comparison with the Extended Kalman Filter Dr. Li-Ta Hsu
June 15 GAO Report, “Defense Navigation Capabilities” Chi Mai and Jenn Beddor, U.S. GAO
May 27 Hurricane Hunters: Navigating a Plane through a Hurricane Lt. Cmdr. Brian Richards
May 11 Multi‐slices navigation approach for unknown 3D environments using micro aerial vehicles Dr. Haytham Mohamed
April 20 GNSS interference mitigation: A measurement and position domain assessment Dr. Daniele Borio and Dr. Ciro Gioia
March 23 Navigation of the Mars 2020 Perseverance Rover from Earth to Jezero Crater Dr. Gerhard Kruizinga

February 18

Effect of GPS III weighted voting on P(Y) receiver processing performance Dr. Karl Kovach
2020

December 10

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 Residual-based multi-filter methodology for all-source fault detection, exclusion, and performance monitoring Dr. Juan Jurado
October 22

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

Dr. Kevin Brink
August 20

Multi-Constellation ARAIM Exploiting Satellite Motion

Dr. Mathieu Joerger
July 9

Improving Environment Detection by Behavior Association for Context-Adaptive Navigation

Dr. Han Gao
June 25

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