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GPS Interference: Origins, Effects & Mitigations 1-15-15 Rec
Friday, January 16, 2015 10:15:00 AM CST - Wednesday, December 31, 2025 11:15:00 AM CST
GPS INTERFERENCE:  ORIGINS, EFFECTS, AND MITIGATIONS - Recorded 1/15/15

PLEASE NOTE:  This event is part of the Virtual Series Archive. It is only available to AOC members and is password protected. Follow the links below to access the password or become a member.

Password (Members Only): bit.ly/1OiQfsG

Join the AOC: bit.ly/1Tcz3Df

WEBINAR DETAILS:
GPS has been described as the stealth utility. Diverse elements of our military capability and national infrastructure are critically reliant on precise location and time, usually derived from GPS.  Yet, GPS signal reception is potentially vulnerable to interference and spoofing. This webinar provides a high level perspective on the effects of jamming and spoofing on GPS receivers and describes some interference mitigation approaches. 

After a quick review of GPS signals and how receivers determine position, the focus is on the effects of select interference types on specific GPS signals, both military and civil. Jamming effectiveness as a function of range is examined and the effect of ground mobile propagation in limiting effective jammer range is described. Military mitigations such as adaptive arrays and inertial measurement unit (IMU) aiding are discussed as well as their limitations. The prospects for integrating rapidly evolving civil “smartphone” approaches into a military context are then explored.

Finally, because GPS is a dual use civil/military system, training military users for operation in a challenged RF environment is highly problematic since actually jamming GPS is often not an option. Discussion will include some approaches to realistically simulate jamming effects under field conditions..


SPEAKER:
Logan Scott
President, LS Consulting

Logan Scott has over 35 years of military and civil GPS systems engineering experience. He is a consultant specializing in radio frequency signal processing and waveform design. At Texas Instruments, he pioneered approaches for building high-performance, jamming-resistant digital receivers. At Omnipoint (now T-Mobile), he developed spectrum sharing techniques that led to a Pioneer’s preference award from the FCC. He is a cofounder of Lonestar Aerospace, an advanced decision analytics company located in Texas. He is also a partner at GeoCodex LLC developing location aware security architectures for mobile applications. Logan has been an active advocate for improved civil GPS location assurance through test based GPS receiver certification, crowdsourced jammer detection and location, and, by adding robust signal authentication features to civil GPS signals. Logan is a Fellow of the Institute of Navigation and holds 36 US patents.


This AOC webinar is COMPLIMENTARY, unclassified, and all participants are welcome.


PLATINUM SPONSOR:
- Rohde & Schwarz

BRONZE SPONSOR:
- Raytheon

PLEASE NOTE:  By registering for this event, the details of your profile may be used by the Association of Old Crows (AOC), the presenter, or the sponsor(s) to contact you by email.

Speaker

Logan Scott
President, LS Consulting

Logan Scott has over 35 years of military and civil GPS systems engineering experience. He is a consultant specializing in radio frequency signal processing and waveform design.  Logan has been an active advocate for improved civil GPS location assurance through test based GPS receiver certification, crowdsourced jammer detection and location, and, by adding robust signal authentication features to civil GPS signals. Logan is a Fellow of the Institute of Navigation.

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