Mitigating jamming and meaconing attacks using direct GPS positioning

Yuting Ng, Grace Xingxin Gao

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Direct GPS Positioning (DP) is a robust method that estimates the GPS navigation solution directly from the received GPS signal. In contrast, traditional methods, such as scalar tracking and vector tracking, compute intermediate channel range and range residual measurements independently, then use these as inputs into the navigation filter to estimate the navigation solution. However, a brute force implementation of DP is not computationally efficient. Our research contribution is to evaluate the robustness of DP using our more computationally efficient DP implementation. Our novel and effective DP receiver architecture initializes the navigation solution guesses as two groups: guesses varying in position and clock bias, guesses varying in velocity and clock drift. We then perform vectorized calculations to get the expected delay and Doppler between the receiver and each satellite in view. Following that, we perform batch calculations using Fast Fourier Transforms (FFTs) to obtain the vector correlation and vector spectrum. The navigation solution residual derived from the vector correlation and vector spectrum is then used as input into the navigation filter. We implemented our receiver architecture using our research platform - PyGNSS. We then evaluated the robustness of our DP receiver architecture by subjecting it to simulated jamming and meaconing attacks. We demonstrate through our experiments the robustness of our DP receiver architecture.

Original languageEnglish (US)
Title of host publicationProceedings of the IEEE/ION Position, Location and Navigation Symposium, PLANS 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1021-1026
Number of pages6
ISBN (Electronic)9781509020423
DOIs
StatePublished - May 26 2016
EventIEEE/ION Position, Location and Navigation Symposium, PLANS 2016 - Savannah, Georgia
Duration: Apr 11 2016Apr 14 2016

Publication series

NameProceedings of the IEEE/ION Position, Location and Navigation Symposium, PLANS 2016

Other

OtherIEEE/ION Position, Location and Navigation Symposium, PLANS 2016
CountryGeorgia
CitySavannah
Period4/11/164/14/16

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Mechanical Engineering
  • Instrumentation

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