Study of attenuation due to wet antenna in microwave radio communication

Noam David, Oz Harel, Pinhas Alpert, Hagit Messer

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Atmospheric conditions are known to affect the Received Signal Level (RSL) in commercial microwave links (MWLs), that operate at frequencies of tens of GHz. Study of these effects is of great importance both for communication engineers and for environmental monitoring. In this paper we study the phenomenon of a wet antenna. During periods of high relative humidity (RH), a thin layer of water may collect on the outside cover of the microwave units, resulting in increased signal attenuation. Here, we focus on the estimation of the signal power loss caused due to this phenomenon. We used a generalized likelihood ratio test (GLRT) to detect transient signal loss of unknown arrival time and duration, based on existing measurements from a network of commercial MWLs, used in for cellular backhauling. The results indicate the ability of the proposed algorithm to detect and estimate the signal loss of antenna moistening. Beyond its value for commercial microwave networks design, this information holds potential for the detection of dew, which is of great environmental importance.

Original languageEnglish
Title of host publication2016 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2016 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages4418-4422
Number of pages5
ISBN (Electronic)9781479999880
DOIs
StatePublished - 18 May 2016
Event41st IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2016 - Shanghai, China
Duration: 20 Mar 201625 Mar 2016

Publication series

NameICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Volume2016-May
ISSN (Print)1520-6149

Conference

Conference41st IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2016
Country/TerritoryChina
CityShanghai
Period20/03/1625/03/16

Keywords

  • Environmental sensor networks
  • GLRT
  • Microwave links
  • RSL
  • Wet antenna

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