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Underwater acoustic remote control based on time-frequency joint coding

Published: 11 November 2013 Publication History

Abstract

In order to ensure the navigation security of unmanned underwater vehicles (UUVs), an underwater acoustic remote control system is essential. An applied remote control method is proposed. The information to be transmitted is modulated both on frequency and pulse intervals. Reliability is guaranteed, and the communication rate is improved at the same time. To reduce the correlation between reverberation and response, opposite chirp rates are used for up-run and down-run instructions. The incoming signal strength, reference signal parameters and the relationship between the incoming signal and the reference signal are utilized to evaluate the hypothesis testing adaptive threshold. A constant false alarm rate (CFAR) detector is realized. Through estimating the channel impulse response, a deconvolution Doppler frequency correction method is proposed. After dividing the band of frame head, a sub-band pre-detector and a copy sequence notch filter are designed to suppress interference from other acoustic platforms. The feasibility and effectiveness of these methods are verified by lake trial results.

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  • (2014)Robust underwater acoustic remote control method2014 IEEE International Conference on Signal Processing, Communications and Computing (ICSPCC)10.1109/ICSPCC.2014.6986331(919-922)Online publication date: Aug-2014

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cover image ACM Conferences
WUWNet '13: Proceedings of the 8th International Conference on Underwater Networks & Systems
November 2013
374 pages
ISBN:9781450325844
DOI:10.1145/2532378
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Publication History

Published: 11 November 2013

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Author Tags

  1. CFAR detection
  2. doppler correction
  3. interference suppression
  4. remote control
  5. time-frequency joint coding

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  • Research-article

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WUWNET '13
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WUWNET '13: Conference on Underwater Networks and Systems
November 11 - 13, 2013
Kaohsiung, Taiwan

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WUWNet '13 Paper Acceptance Rate 11 of 55 submissions, 20%;
Overall Acceptance Rate 84 of 180 submissions, 47%

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  • (2014)Robust underwater acoustic remote control method2014 IEEE International Conference on Signal Processing, Communications and Computing (ICSPCC)10.1109/ICSPCC.2014.6986331(919-922)Online publication date: Aug-2014

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