Narrowband interference mitigation in angle-frequency direct product domain in UWB receivers

Kazutaka Kikuta, Akira Hirose

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

Abstract

The high precision ranging using ultra wideband (UWB) requires mitigation of interference from other communication systems, in particular from narrowband interference (NBI). There have been many studies of adaptive notch filters (ANF) to cope with NBI at various frequencies. This paper proposes a novel adaptive NBI mitigation method which uses the direction of arrival as well as frequency selectivity. We use an array antenna and apply the optimal weight which directs nulls to large-power waves. This realizes NBI suppression because of the lower power spectrum of the UWB pulse signal. Our method does not need any iteration such as feedback loop, and thus requires only a small calculation cost. Simulations demonstrate that the proposed method is applicable to variously directional and multiple-frequency NBIs.

Original languageEnglish
Title of host publicationISAP 2016 - International Symposium on Antennas and Propagation
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages502-503
Number of pages2
ISBN (Electronic)9784885523137
Publication statusPublished - 2017 Jan 17
Externally publishedYes
Event21st International Symposium on Antennas and Propagation, ISAP 2016 - Ginowan, Okinawa, Japan
Duration: 2016 Oct 242016 Oct 28

Publication series

NameISAP 2016 - International Symposium on Antennas and Propagation

Other

Other21st International Symposium on Antennas and Propagation, ISAP 2016
CountryJapan
CityGinowan, Okinawa
Period16/10/2416/10/28

Keywords

  • Power inversion
  • Ultra wideband (UWB)

ASJC Scopus subject areas

  • Radiation
  • Computer Networks and Communications
  • Instrumentation

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