NLOS exclusion using consistency check and city building model in deep urban canyons

Li Ta Hsu, Shunsuke Kamijo

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

7 Citations (Scopus)

Abstract

Lots of studies are focused on improving GNSS positioning in urban environments. One of the promising solution is to take advantage of city building models to mitigate, detect or even correct the reflection signals. The studies that corrected NLOS and used it as an addition measurement usually assumes the travelling path of the NLOS is single reflected. In the case of middle urban canyons, this assumption should be correct in most of the cases. Because of the dense and modern buildings in deep urban canyon, the possible reflection paths of GNSS signals are increased dramatically. As a result, a two or multipath reflected NLOS signal became easily observed. This paper applies the consistency check in the developed 3D map based positioning method to exclude the abnormal reflection signals. According to the experiment result, the positioning result with the consistency check outperforms the positioning result without it. The mean of positioning error of the 3D map method with consistency check is about 3.8 meters in the deep urban environment.

Original languageEnglish
Title of host publication28th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS 2015
PublisherInstitute of Navigation
Pages2390-2396
Number of pages7
ISBN (Electronic)9781510817258
Publication statusPublished - 1 Jan 2015
Externally publishedYes
Event28th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS 2015 - Tampa, United States
Duration: 14 Sep 201518 Sep 2015

Publication series

Name28th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS 2015
Volume3

Conference

Conference28th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS 2015
Country/TerritoryUnited States
CityTampa
Period14/09/1518/09/15

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Software

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