Optimum Mitigation of distortion induced by Rayleigh Backscattering in Radio-over-Fiber links for the Square Kilometer Array Radio-Telescope

Jacopo Nanni, Andrea Giovannini, Muhammad Usman Hadi, Simone Rusticelli, Federico Perini, Jader Monari, Enrico Lenzi, Giovanni Tartarini

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

5 Citations (Scopus)

Abstract

This paper presents the theoretical and experimental study of unexpected distortions induced by the Rayleigh backscattering phenomenon in Radio-over-Fiber (RoF) links within the Square Kilometer Array (SKA) project. For this system, the radio frequency (RF) signals coming from the sky and celestial sources are received by more than 130k antennas individually and then transmitted to the signal processing room through an analogue RoF link. The low frequency band considered (from 50MHz to 350MHz) and the relatively low levels of the power of such RF signals are identified as the cause of these distortion effects which can decrease drastically the receiver dynamic range. An analysis of the phenomenon is presented in this work, together with an efficient solution optimized for the considered applicative case.

Original languageEnglish
Title of host publication2019 IEEE International Topical Meeting on Microwave Photonics, MWP 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728136257
DOIs
Publication statusPublished - 1 Oct 2019
Event2019 IEEE International Topical Meeting on Microwave Photonics, MWP 2019 - Ottawa, Canada
Duration: 7 Oct 201910 Oct 2019

Publication series

Name2019 IEEE International Topical Meeting on Microwave Photonics, MWP 2019

Conference

Conference2019 IEEE International Topical Meeting on Microwave Photonics, MWP 2019
CountryCanada
CityOttawa
Period7/10/1910/10/19

Keywords

  • Low Frequency ApertureArray
  • Radio-over-Fiber
  • Rayleigh Backscattering
  • Square KilometerArray

Fingerprint

Dive into the research topics of 'Optimum Mitigation of distortion induced by Rayleigh Backscattering in Radio-over-Fiber links for the Square Kilometer Array Radio-Telescope'. Together they form a unique fingerprint.

Cite this