Online integrity alert limit determination method for autonomous vehicle navigation

Qian Meng, Li Ta Hsu, Shaojun Feng

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review


Integrity is the critical performance indicator for navigation in safety-critical applications such as autonomous vehicles. Alert limit is one of the representative parameter in integrity which defines the maximum tolerable positioning error for an operation to safely proceed. However the integrity requirements for GNSS assessment are quite different from those for autonomous vehicles. For autonomous vehicles, a reasonable alert limit needs to ensure the vehicle security and take full advantage of the space between vehicle and lane as much as possible. Based on the analysis of differences from civil aviation to autonomous vehicles, an improved alert limit determination method is proposed in this paper. The kinematic model is firstly introduced into the online determination of alert limit. The integrity risk on two sides are allocated optimally respect to the road geometry and kinematic model. The fixed cuboid bounding box is replaced by a subversive fan-shaped bounding box which is more reasonable to cover the safe-critical areas. The experiment test results compared with those of the Ford model also verified the superiority of the proposed method. Finally the paper also gives the alert limits calculated based on the Chinese standards and hopefully it could provide some references.

Original languageEnglish
Title of host publication11th China Satellite Navigation Conference, CSNC 2020 Proceedings: Volume II
EditorsJiadong Sun, Changfeng Yang, Jun Xie
Number of pages11
ISBN (Print)9789811537103
Publication statusPublished - May 2020
Event11th China Satellite Navigation Conference, CSNC 2020 - Chengdu, China
Duration: 22 Nov 202025 Nov 2020

Publication series

NameLecture Notes in Electrical Engineering
Volume651 LNEE
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119


Conference11th China Satellite Navigation Conference, CSNC 2020


  • Alert limit
  • Autonomous vehicles
  • Integrity
  • Kinematic model

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering


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