Ocean ambient noise measurements near Lanai: A quiet location
نویسندگان
چکیده
منابع مشابه
Head waves in ocean acoustic ambient noise: Measurements and modeling.
Seismic interferometry recovers the Green's function between two receivers by cross-correlating the field measured from sources that surround the receivers. In the seismic literature, it has been widely reported that this processing can produce artifacts in the Green's function estimate called "spurious multiples" or the "virtual refracted wave." The spurious multiples are attributed to the hea...
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With the assumption that the ocean-acoustic ambient noise field is a random process that obeys the central limit theorem, many useful statistical properties of subsequent intensity and mutual intensity measurements are readily deduced by respective applications of coherence theory and estimation theory.
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Inherent in passive sonar are several challenges that any effective system implementation must address. One of these challenges is how to best treat multipath arrivals. In some cases these can be a hindrance while in this research they are exploited. In certain environments, different arrivals (multipath and direct) retain significant coherence with respect to each other. This fact has been not...
متن کاملOcean Ambient Noise Studies for Improved Sonar Processing
Inherent in passive sonar systems are several challenges that any effective system implementation must address. One of these challenges is how to best treat multipath arrivals. In some cases these can be a hindrance while in this research they are exploited. In certain environments, multipath arrivals retain significant coherence with respect to each other. This fact has been noted and exploite...
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ژورنال
عنوان ژورنال: The Journal of the Acoustical Society of America
سال: 1977
ISSN: 0001-4966
DOI: 10.1121/1.2016162