Localization of an Underwater Beacon in Task2 of Maritime RobotX

Ching Tang Hung, Shih Hsing Liu, Yen Hsiang Huang, Chi Fang Chan, Hsueh Cheng Wang

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

Abstract

This paper provides a method to localize an underwater beacon in real-time and overcome the challenge of SNR due to ambient noise and multiple reflections. The signal of beacon is a 4-ms pulse per 0.5 second, 1 second or 2 seconds, and the frequency is 25 to 40 kHz in 0.5 kHz increment. Details of this information is not disclosed until the day of the competition, which adds to the challenges. The algorithm for calculating direction where target signal is coming from is time difference of arrival(TDOA). In order to receive the time difference, we use two hydrophones at two different positions. After getting the time difference, incident angle can be calculated consequently, thus the direction which the target signal is from can be determined.

Original languageEnglish
Title of host publication2019 IEEE International Underwater Technology Symposium, UT 2019 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538641880
DOIs
StatePublished - Apr 2019
Event2019 IEEE International Underwater Technology Symposium, UT 2019 - Kaohsiung, Taiwan
Duration: 16 Apr 201919 Apr 2019

Publication series

Name2019 IEEE International Underwater Technology Symposium, UT 2019 - Proceedings

Conference

Conference2019 IEEE International Underwater Technology Symposium, UT 2019
CountryTaiwan
CityKaohsiung
Period16/04/1919/04/19

Keywords

  • Localization of Underwater Acoustic Source
  • Maritime RobotX
  • Time Difference of Arrival

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