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|  | | 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。 | |
Seafloor sediment classification based on echo characteristics obtained from single-beam echosounder is very useful in remote and instant sediment classification.
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Seafloor sediment classification from single beam echo sounder data using LVQ network
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This demonstrates the importance of calibrating remote sediment classification observations using complimentary acoustic analysis of seabed samples to generate a site-specific geoacoustic database.
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A remote sediment classification technique based on attenuation measurements from Chirp sub-bottom profiler data is described.
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An attenuation-based sediment classification technique using Chirp sub-bottom profiler data and laboratory acoustic analysis
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| | Based on the ground spectral features and different information reflected on the false color synthetic images of aerial remote sensing, the surface sediments in the experimental area are interpreted as eight kinds of materials of different genesis. As a result a sediment classification map of 1:10000 is charted. | | 根据地物光谱特征及其在航空遥感假彩色合成像片上的信息,对试验区地面沉积物解译出8种成因类型物质,并绘制了1∶1万的沉积物类型图。 | | 文摘来源 | | The paper presents a method of lake bottom sediment classification using echo signals provided by a wideband active sonar. The five types of sediments are silt. rocks. pebbles. sand. and mixture of sand and gravel. Different sub-band divisions for frequency domain feature extraction are compared and it is shown that the contant Q method provides better results in comparison with the constant bandwidth method. Using a standard feedforward BP network, 82. 1% correct classification in a... | | 本文论述如何运用实际宽带主动声呐的回波信号识别湖底沉积物介质类型。五类湖底沉积层介质分别为:淤泥、岩石、孵石、沙、沙/砾石混合层。比较了等Q和等带宽两种子带能量频域特征提取方法,确认了等Q方法的优点。应用标准前馈BP人工神经网络结构,对五类湖底沉积层介质的平均正确识别率达到82.1%。 | | 文摘来源 | | Based on the various data from the tested 30 spot samples of the surficial sediments at the southwestern Xisha sea area,obtained by the Guangzhou Marine Geological Survey,MGMR,1993,types,mineral compositions,geochemistry and micropaleontology of the sediments are expounded in this paper in order to provide valuable information for marine geological researches of the South China Sea. The sampling spots are almost located at the 2000—30... | | 西沙西南海域表层沉积物样品矿物成分、地球化学、微体古生物分析测试结果表明:沉积物可分为7种类型,沉积环境主要是陆坡,部分为深海平原,海洋生物、海洋化学以及火山物质的沉积起到了积极的作用,陆源物质的影响较小,它们主要来源于北部大陆和南部岛礁等物源区。 | | 文摘来源 | |   | | << 更多相关文摘 |
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