Vertical integrity monitoring with direct positioning

Arthur Hsi Ping Chu, Grace Xingxin Gao

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

Abstract

The monitoring of GPS integrity is critical for preventing Harzardously Misleading Information (HMI) in safety-of-life applications. We propose an integrity monitoring algorithm based on Direct Position Estimation (DPE), an unconventional GPS receiver architecture. Without the need for intermediate pseudorange models, which are essential under conventional schemes, we are able to account for all sources of error collectively in the position domain, enabling more thorough protection against different modes of integrity threats. Using the correlation manifold provided by a generic DPE receiver, our algorithm characterizes the deformation of the manifold with a Gaussian distribution, which reflects the trust-worthiness of the DPE navigation solution. In this paper, we focus on the vertical aspect of our DPE-based integrity monitoring algorithm. This proposed algorithm was verified with live data to be able to provide indication for the presence of integrity threats, such as a degrading signal environment.

Original languageEnglish (US)
Title of host publication2018 IEEE/ION Position, Location and Navigation Symposium, PLANS 2018 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages367-373
Number of pages7
ISBN (Electronic)9781538616475
DOIs
StatePublished - Jun 5 2018
Event2018 IEEE/ION Position, Location and Navigation Symposium, PLANS 2018 - Monterey, United States
Duration: Apr 23 2018Apr 26 2018

Publication series

Name2018 IEEE/ION Position, Location and Navigation Symposium, PLANS 2018 - Proceedings

Other

Other2018 IEEE/ION Position, Location and Navigation Symposium, PLANS 2018
CountryUnited States
CityMonterey
Period4/23/184/26/18

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ASJC Scopus subject areas

  • Automotive Engineering
  • Aerospace Engineering
  • Control and Optimization

Cite this

Chu, A. H. P., & Gao, G. X. (2018). Vertical integrity monitoring with direct positioning. In 2018 IEEE/ION Position, Location and Navigation Symposium, PLANS 2018 - Proceedings (pp. 367-373). (2018 IEEE/ION Position, Location and Navigation Symposium, PLANS 2018 - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PLANS.2018.8373402