Detecting GPS spoofing via a multi-receiver hybrid communication network for power grid timing verification

Tara Yasmin Mina, Sriramya Bhamidipati, Grace Xingxin Gao

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

Abstract

For the future Smart Grid, devices called Phasor Measurement Units (PMUs) are being widely deployed to continuously monitor the state of the power grid in real-time. The voltage and current phasor measurements are synchronized across the network using GPS. However, because civilian GPS signals are unencrypted, these receivers are susceptible to being spoofed. In this work, we propose a wide-area spoofing detection algorithm for PMUs using a hybrid communication architecture which overlays NAPSInet, a proposed communication structure for the future Smart Grid. We create conditioned signal snippets which contain the military P(Y) signal, whose precise code sequence is unavailable to civilian users and thus cannot be generated by an attacker. Thus, the encrypted signal establishes a type of signature in the background of all authentic GPS signals, the presence of which can be verified by correlating between conditioned signals from other distant receivers. We further consider the potential for a coordinated spoofing attack against regional collections of cross-check receivers and generate representative snippets for each regional network to verify against other distant sites. Additionally, we use real-world data recorded during a government-sponsored, live-sky spoofing event and demonstrate our algorithm can successfully evaluate the authenticity of a widely dispersed network of receivers.

Original languageEnglish (US)
Title of host publicationProceedings of the 31st International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS+ 2018
PublisherInstitute of Navigation
Pages2963-2977
Number of pages15
ISBN (Electronic)0936406100, 9780936406107
DOIs
StatePublished - 2018
Event31st International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS+ 2018 - Miami, United States
Duration: Sep 24 2018Sep 28 2018

Publication series

NameProceedings of the 31st International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS+ 2018

Conference

Conference31st International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS+ 2018
CountryUnited States
CityMiami
Period9/24/189/28/18

ASJC Scopus subject areas

  • Computer Science Applications
  • Software
  • Electrical and Electronic Engineering

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  • Cite this

    Mina, T. Y., Bhamidipati, S., & Gao, G. X. (2018). Detecting GPS spoofing via a multi-receiver hybrid communication network for power grid timing verification. In Proceedings of the 31st International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS+ 2018 (pp. 2963-2977). (Proceedings of the 31st International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS+ 2018). Institute of Navigation. https://doi.org/10.33012/2018.15904