Performance comparison of target localization for active sonar systems

Suhwan Kim, Bonhwa Ku, Wooyoung Hong, Hanseok Ko

Research output: Contribution to journalArticlepeer-review

57 Citations (Scopus)


The performance comparison of target localization for active sonar and effective fusion algorithms for target localization of multistatic sonar is investigated. Active sonar can be categorized into monostatic, bistatic, and multistatic, depending on the number of receiver elements. Target localization performance depends on the system configuration. The target localization performance of the monostatic, bistatic, and multistatic sonar systems is compared assuming that each element can receive both range and azimuth information of the target. In addition, we propose the weighted least square (WLS) algorithm, which incorporates judicial weighting to the conventional least square (LS) method, and an efficient sensor arrangement rule for target localization in the multistatic sonar system. The representative experimental results demonstrate that the target localization performance of multistatic sonar configuration is superior in terms of root-mean-square error (RMSE), to monostatic sonar and bistatic sonar by 35.98% and 37.45%, respectively, while the proposed WLS algorithm showed an improvement of 2.27% compared with the LS method.

Original languageEnglish
Pages (from-to)1371-1380
Number of pages10
JournalIEEE Transactions on Aerospace and Electronic Systems
Issue number4
Publication statusPublished - 2008

Bibliographical note

Funding Information:
This research was supported by the Underwater Acoustic Research Center (UARC).


  • Noise
  • Receivers
  • Sonar measurements
  • Transmitters

ASJC Scopus subject areas

  • Aerospace Engineering
  • Electrical and Electronic Engineering


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