Time difference auto‐extraction methods for in situ sound speed measurements in seafloor sediments
Qingfeng Hua,
Jingqiang Wang,
Guanbao Li
et al.
Abstract:The in situ acoustic measurement of seafloor sediment is an important technical means to obtain the acoustic parameters of seafloor. The time‐of‐flight method is commonly used to calculate the sound speed in seafloor sediment. Accurate identification of signal feature points is essential for determining travel time or travel time difference of acoustic signals. However, the precise identification of feature points, such as the take‐off point of the first wave of a sound wave signal, is challenging. The convent… Show more
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