Monopulse switching to cancel phase offset in array antenna comprising multiple COTS SDRs

Masato Miyazawa, Jin Mitsugi, Yuusuke Kawakita, Haruhisa Ichikawa

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

This paper proposes a phase offset canceler for an array antenna, which comprises multiple low-cost commercial of the shelf (COTS) software defined radio (SDR) devices. The main challenge is the phase synchronization of SDR devices because each SDR devices has its own phase offset when it produces IQ stream. We devise a simple yet effective method to cancel the phase offset of individual SDR device using a double-pole, double-throw (DPDT) switch which is implemented between antenna and SDR device. The DPDT switch is controlled according to the frame timing of each IQ stream to produce two set of measurements, from which we can compute angle of arrival(AoA) with a simple signal processing. We refer this mechanism as 'Monopulse Switching'. We evaluated the working principle experimentally to reveal Monopulse switching successfully cancel phase offset to detect AoA without any initial calibration and achieves 2.8 degree measurement accuracy.

本文言語English
ホスト出版物のタイトル2016 IEEE International Conference on RFID Technology and Applications, RFID-TA 2016
出版社Institute of Electrical and Electronics Engineers Inc.
ページ65-70
ページ数6
ISBN(電子版)9781509014088
DOI
出版ステータスPublished - 2016 11 21
イベント2016 IEEE International Conference on RFID Technology and Applications, RFID-TA 2016 - Shunde, Foshan, China
継続期間: 2016 9 212016 9 23

出版物シリーズ

名前2016 IEEE International Conference on RFID Technology and Applications, RFID-TA 2016

Other

Other2016 IEEE International Conference on RFID Technology and Applications, RFID-TA 2016
CountryChina
CityShunde, Foshan
Period16/9/2116/9/23

ASJC Scopus subject areas

  • Instrumentation
  • Computer Networks and Communications

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