High Resolution Time-of-Flight Measurement with Narrow-Band COTS Ultrasonic Transducers

Mondo Saito, Jin Mitsugi

研究成果: Conference contribution

抄録

Ultrasonic transducers (a pair of speaker and microphone) are extensively used in distance and wind speed measurements. The measurement of Time-of-Flight (TOF) between an ultrasonic speaker and a microphone dominates the accuracy. This paper presents a method to improve the TOF measurement accuracy using narrow-band commercial off-the-shelf (COTS) ultrasonic transducers. The method features the use of an experimentally captured waveform to correlate the transmitted and received signals and the use of a phase modulated ultrasonic signal. The method is experimentally evaluated to show that the proposal can significantly reduce the TOF measurement error, from 25.5% to 0.3%.

本文言語English
ホスト出版物のタイトル2018 IEEE SENSORS, SENSORS 2018 - Conference Proceedings
出版社Institute of Electrical and Electronics Engineers Inc.
2018-October
ISBN(電子版)9781538647073
DOI
出版ステータスPublished - 2018 12 26
イベント17th IEEE SENSORS Conference, SENSORS 2018 - New Delhi, India
継続期間: 2018 10 282018 10 31

Other

Other17th IEEE SENSORS Conference, SENSORS 2018
CountryIndia
CityNew Delhi
Period18/10/2818/10/31

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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