水中音源到来方向推定におけるマルチパス干渉に強い到達時間差測定アルゴリズム

• 高田 渓作

  北見工業大学大学院工学研究科

• 吉澤 真吾

  北見工業大学大学院工学研究科

書誌事項

タイトル別名

• TDOA Measurement Algorithm Resistant to Multipath Interference in Estimating Direction of Arrival of Underwater Sound Source

抄録

In this paper, we propose a time difference of arrival (TDOA) measurement algorithm resistant to multipath interference in estimating direction of arrival (DOA) of an underwater sound source. In strong multipath interference, the pseudo-peaks caused by reflected affect the correlation function, which makes it difficult to detect the peak with correct time position and leads to a large TDOA measurement error. The proposed method detects the arrival time difference by cross-correlating two impulse responses measured using a reference signal, and realizes a TDOA measurement that is resistant to multipath interference. We discuss the effectiveness of the proposed method by using an underwater acoustic reflection model, and report its performance by comparing the conventional method and the proposed method by our simulation and experiment.

収録刊行物

• 信号処理

  信号処理 25 (1), 33-42, 2021-01-01

  信号処理学会

キーワード

• underwater acoustics
• direction of arrival
• time difference of arrival
• multipath interference

詳細情報

• CRID: 1391694356248556672
• NII論文ID: 130007965077
• DOI: 10.2299/jsp.25.33
• ISSN: 18801013
• ISSN: 13426230
• Web Site: https://www.jstage.jst.go.jp/article/jsp/25/1/25_33/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可