Assessment of GPS L1/Galileo E1 interference monitoring system for the airport environment

Oscar Isoz, Dennis Akos, Tore Lindgren, Chih Cheng Sun, Shau Shiun Jan

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

14 Citations (Scopus)

Abstract

How does the GPS Ll spectrum look like at a commercial airport? How frequently do radio frequency interference (RFI) incidents occur? To answer this, the GPS Ll/Galileo El band was monitored at two different airports for an extended period of time. The monitor stations continuously recorded the noise level using the automatic gain control (AGC) in the frontend. Also, the raw intermediate frequency (IF) signal was recorded at regular intervals as well as when the AGC level dropped below a certain threshold. In this paper the analysis of long-term measurements of the spectrum and AGC level at Luleå Airport outside Luleå, Sweden, and Kaohsiung International Airport in Kaohsiung City, Taiwan, is presented. The results shows that RFI incidents did occur at both airports, although more frequent at Kaohsiung International Airport. The measurements also show that the AGC level is useful in systems monitoring the RFI environment. Importantly, the measured data could be utilized for analyses toward the future introduction of GBAS for civil aviation authorities.

Original languageEnglish
Title of host publication24th International Technical Meeting of the Satellite Division of the Institute of Navigation 2011, ION GNSS 2011
Pages1920-1930
Number of pages11
Publication statusPublished - 2011 Dec 1
Event24th International Technical Meeting of the Satellite Division of the Institute of Navigation 2011, ION GNSS 2011 - Portland, OR, United States
Duration: 2011 Sep 192011 Sep 23

Publication series

Name24th International Technical Meeting of the Satellite Division of the Institute of Navigation 2011, ION GNSS 2011
Volume3

Other

Other24th International Technical Meeting of the Satellite Division of the Institute of Navigation 2011, ION GNSS 2011
CountryUnited States
CityPortland, OR
Period11-09-1911-09-23

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Communication

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