Global navigation satellite system (GNSS ) signals are so weak near the Earth’s surface that they can be easily squelched by natural or man-made interference. Moreover, the most popular GNSS signals – those offered with unrestricted access – are unencrypted and unauthenticated, which means they can be counterfeited, or spoofed. Strict international laws protect the radio frequency bands allocated to GNSS, but mother nature does not respect these laws, and man-made interference – whether accidental or intentional – is a growing concern.

This chapter examines sources of GNSS signal interference and the interference effects on GNSS signal tracking. It offers a systematic treatment of natural, unintentional, and intentional interference, with emphasis on intentional jamming and spoofing. Theoretical performance bounds are developed for the simplest cases of narrowband and wideband interferences. The chapter finishes with a review of the state of the art in antenna-oriented and signal-processing-oriented interference detection and mitigation techniques.


automatic gain control


binary offset carrier


carrier-phase differential GNSS


civil navigation message


distance measuring equipment


Federal Communications Commission


global navigation satellite system


Global Positioning System


inertial measurement unit


International Telecommunication Union


low-noise amplifier


maximum a posteriori


micro-electromechanical system


oven controlled crystal oscillator


phase lock loop


personal privacy device


precise point positioning


position, velocity and time


radio frequency interference


radio frequency


radio navigation satellite service


signal-to-noise ratio


tactical air navigation (system)


temperature compensated crystal oscillator


ultra-high frequency


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Copyright information

© Springer-Verlag Berlin Heidelberg 2017

Authors and Affiliations

  1. 1.Aerospace Engineering and Engineering Mechanics, W.R. Woolrich Laboratories, C0600The University of Texas at AustinAustinUSA

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