Application of sidescan sonar to geological sea floor mapping
نویسندگان
چکیده
منابع مشابه
Mapping seagrass in the Swan-Canning Estuary using sidescan sonar
Seagrass distribution and other measures of seagrass condition have been used as broad scale biological indicators of marine and estuarine health. To date the distribution of seagrass in the Swan-Canning Estuary has been assessed based on aerial photographs, which is ineffective in deep, turbid waters. Sidescan sonar systems (SSS) provide acceptable results in a much wider range of environmenta...
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1 Abstract This paper presents a technique for the classiication and analysis of seabed sediments from sidescan sonar image, the origins of which lie in the body of fractal theory. Six seabed types were analysed, namely clay, mud, sand, gravel, stones and rock. These data sets have previously been analysed by several authors who have used techniques based on the power spectrum. The method propo...
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Sound backscattered to a sonar from a seabed decreases in intensity with increasing range (R) due to geometrical spreading. As a far-range approximation, a geometrical spreading correction of +30 log R decibels may be applied. A correction based on an accurate estimation of the area of the seabed ensonified by the sonar pulse incorporates additional terms that are a function of: range, sonic ra...
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ژورنال
عنوان ژورنال: The Journal of the Acoustical Society of America
سال: 1993
ISSN: 0001-4966
DOI: 10.1121/1.406284