Performance of a cylindrical hydrophone array for practical use

Shaohao Zhu, Yixin Yang, Yong Wang, Qiulong Yang, Xidang Yan

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

Abstract

Cylindrical arrays are widely used in sonar systems for underwater target detection. For the sake of reducing calculation, each line of hydrophones at the same azimuth direction aligned with the cylinder axis are hardwired together in practice and thus, each line array with omnidirectional sensors becomes a directional sensor steered to broadside. As a result, the cylindrical array can be treated as a circular array with directional elements. In this paper, a model is introduced for computing the array gain and the white noise gain of an acoustically transparent cylindrical array. The three-dimensional acoustic field is described by the angular spectral density function and the steering vectors are represented by the cylindrical harmonic expansions, based on the derived noise cross-spectral matrix. Simulation results of array gains and white noise gains with the conventional beamformer (CBF) and the minimum variance distortionless response (MVDR) beamformer for different situations are presented, which has a guiding significance for practical applications.

Original languageEnglish
Title of host publication2017 IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1-5
Number of pages5
ISBN (Electronic)9781538631409
DOIs
StatePublished - 29 Dec 2017
Event7th IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2017 - Xiamen, Fujian, China
Duration: 22 Oct 201725 Oct 2017

Publication series

Name2017 IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2017
Volume2017-January

Conference

Conference7th IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2017
Country/TerritoryChina
CityXiamen, Fujian
Period22/10/1725/10/17

Keywords

  • array gain
  • Cylindrical array
  • noise covariance matrix
  • white noise gain

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