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The Effects of Jamming on GPS/GNSS Signals

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2/6/13 1:00 pm to 2/6/13 2:00 pm EST

Rohde 468x60 6feb13

 

GPS Interference & Spoofing: Origins, Effects and Mitigations for the Military and Civil Communities

Title:
Part I: The Effects of Jamming on GPS/GNSS Signals

Date: February 6, 2013

Time:10:00 AM PT/ 1:00 PM ET/ 6:00 PM UTC

Presnter/Sponsor:
Rohde & Schwarz

Overview:
After a review of GPS signal structures and current satellite constellation status, this webinar provides a tutorial examination of how interference affects GPS signal reception. In particular, interrelations between jammer spectrum and GPS signal spectrum are explored. The role of code structure in assessing vulnerabilities is examined in detail for the civil C/A code. The Betz equation for computing cross coupling between an interference source and a spread spectrum signal is introduced in the context of GPS signals and the role of signal and jammer RF propagation is considered.

Presenter:
Logan Scott

Presenter Bio:
Logan Scott has nearly 35 years of military and civil GPS systems engineering experience. He is a private consultant specializing in radio frequency signal processing and waveform design for communications, navigation, radar, and emitter location. He has been an active advocate for improved civil GPS security through test based GPS receiver certification, crowd sourced jammer detection and location (J911), and, by adding robust signal authentication features to civil GPS signals. At Texas Instruments, he pioneered approaches for building high-performance, jamming-resistant digital receivers. Logan holds 34 US patents.

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