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

Masato Miyazawa; Jin Mitsugi; Yuusuke Kawakita; Haruhisa Ichikawa

doi:10.1109/RFID-TA.2016.7750752

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

Masato Miyazawa, Jin Mitsugi, Yuusuke Kawakita, Haruhisa Ichikawa

Faculty of Environment and Information Studies

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

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.

Original language	English
Title of host publication	2016 IEEE International Conference on RFID Technology and Applications, RFID-TA 2016
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	65-70
Number of pages	6
ISBN (Electronic)	9781509014088
DOIs	https://doi.org/10.1109/RFID-TA.2016.7750752
Publication status	Published - 2016 Nov 21
Event	2016 IEEE International Conference on RFID Technology and Applications, RFID-TA 2016 - Shunde, Foshan, China Duration: 2016 Sep 21 → 2016 Sep 23

Publication series

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

Other

Other	2016 IEEE International Conference on RFID Technology and Applications, RFID-TA 2016
Country	China
City	Shunde, Foshan
Period	16/9/21 → 16/9/23

Keywords

Array antenna
Coherent receiver
Complex monopulse
Software Defined Radio

ASJC Scopus subject areas

Instrumentation
Computer Networks and Communications

Access to Document

10.1109/RFID-TA.2016.7750752

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Cite this

Miyazawa, M., Mitsugi, J., Kawakita, Y., & Ichikawa, H. (2016). Monopulse switching to cancel phase offset in array antenna comprising multiple COTS SDRs. In 2016 IEEE International Conference on RFID Technology and Applications, RFID-TA 2016 (pp. 65-70). [7750752] (2016 IEEE International Conference on RFID Technology and Applications, RFID-TA 2016). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/RFID-TA.2016.7750752

Monopulse switching to cancel phase offset in array antenna comprising multiple COTS SDRs. / Miyazawa, Masato; Mitsugi, Jin; Kawakita, Yuusuke; Ichikawa, Haruhisa.

2016 IEEE International Conference on RFID Technology and Applications, RFID-TA 2016. Institute of Electrical and Electronics Engineers Inc., 2016. p. 65-70 7750752 (2016 IEEE International Conference on RFID Technology and Applications, RFID-TA 2016).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Miyazawa, M, Mitsugi, J, Kawakita, Y & Ichikawa, H 2016, Monopulse switching to cancel phase offset in array antenna comprising multiple COTS SDRs. in 2016 IEEE International Conference on RFID Technology and Applications, RFID-TA 2016., 7750752, 2016 IEEE International Conference on RFID Technology and Applications, RFID-TA 2016, Institute of Electrical and Electronics Engineers Inc., pp. 65-70, 2016 IEEE International Conference on RFID Technology and Applications, RFID-TA 2016, Shunde, Foshan, China, 16/9/21. https://doi.org/10.1109/RFID-TA.2016.7750752

Miyazawa M, Mitsugi J, Kawakita Y, Ichikawa H. Monopulse switching to cancel phase offset in array antenna comprising multiple COTS SDRs. In 2016 IEEE International Conference on RFID Technology and Applications, RFID-TA 2016. Institute of Electrical and Electronics Engineers Inc. 2016. p. 65-70. 7750752. (2016 IEEE International Conference on RFID Technology and Applications, RFID-TA 2016). https://doi.org/10.1109/RFID-TA.2016.7750752

Miyazawa, Masato ; Mitsugi, Jin ; Kawakita, Yuusuke ; Ichikawa, Haruhisa. / Monopulse switching to cancel phase offset in array antenna comprising multiple COTS SDRs. 2016 IEEE International Conference on RFID Technology and Applications, RFID-TA 2016. Institute of Electrical and Electronics Engineers Inc., 2016. pp. 65-70 (2016 IEEE International Conference on RFID Technology and Applications, RFID-TA 2016).

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N2 - 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.

AB - 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.

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