Channel Measurements and Characterizations for Long Range Air-to-Ground Communication Systems in the UHF Band

Jaesin Kim, Inkyu Lee

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

In this paper, we consider long range air-to-ground (AG) communication systems which support aeronautical platforms including unmanned aerial vehicles (UAVs) in the ultra high frequency (UHF) band. For such a system, we present the measurement based path loss analysis and multipath characteristic results at the distance of hundreds of kilometers. To this end, the experimental AG channel measurement system is implemented at the aircraft with various ground station (GS) environments. Through realistic flight tests, we observe the path loss behaviors for long range UHF channels with sea and ground earth surface reflections. By comparing the measurement results with the empirical path loss model and the spherical earth two-ray model, we demonstrate that our measurement results match well with the model. Moreover, for the multipath channel characterization, we provide field test results on the occurrence probability, delay, and power of multipath components in hilly and mountainous environments with various altitudes of the aircraft.

Original languageEnglish
Pages (from-to)101880-101888
Number of pages9
JournalIEEE Access
Volume10
DOIs
Publication statusPublished - 2022

Bibliographical note

Publisher Copyright:
© 2013 IEEE.

Keywords

  • Air-to-ground
  • channel characterization
  • long range communication systems
  • UHF band

ASJC Scopus subject areas

  • General Computer Science
  • General Materials Science
  • General Engineering
  • Electrical and Electronic Engineering

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