Impulse Response Shortening in TDOA Algorithm for Underwater Acoustic Localization
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- Shingo Yoshizawa
- Kitami Institute of Technology, Kitami, Hokkaido 0908507, Japan
説明
<jats:p>This paper presents a new idea of impulse response shortening in time difference of arrival (TDOA) measurement algorithm for underwater acoustic localization. Due to strong multipath interference caused by acoustic wave reflection, the pseudo-peaks occur when calculating a correlation function. Their pseudo-peaks disturbs the detection of a correct time position and leads to large TDOA measurement errors. In our previous paper, we presented the impulse response based GCC-PHAT (IR-GCC-PHAT), which computes a time difference by taking a cross-correlation between two impulse responses. As the further improvement, we study the effects of impulse response shortening that removes the pseudo-peaks. The effectiveness of impulse response shortening is explained by observing acoustic wave paths on an acoustic propagation simulator and verified by the simulation results</jats:p>
収録刊行物
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- International Journal of Circuits, Systems and Signal Processing
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International Journal of Circuits, Systems and Signal Processing 15 1624-1631, 2021-11-03
North Atlantic University Union (NAUN)
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詳細情報 詳細情報について
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- CRID
- 1360857593774527488
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- ISSN
- 19984464
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- 資料種別
- journal article
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- データソース種別
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- Crossref
- KAKEN
- OpenAIRE
