OCEANS 92 Proceedings@m_Mastering the Oceans Through Technology最新文献_第2页

δk-lidar sensing of the ocean surface 海洋表面的δk激光雷达探测

OCEANS 92 Proceedings@m_Mastering the Oceans Through Technology Pub Date : 1992-10-26 DOI: 10.1109/OCEANS.1992.612745

A. Palmer, J. Churnside

引用次数: 1

Full-scale Experiments In Open-loop Positioning Of A Deep Towfish 深海拖鱼开环定位的全尺寸实验

OCEANS 92 Proceedings@m_Mastering the Oceans Through Technology Pub Date : 1992-10-26 DOI: 10.1109/OCEANS.1992.607705

F. Hover, D. Yoerger

引用次数: 0

A Simple Low Cost Acoustic Current Meter 一种简单的低成本声学电流计

OCEANS 92 Proceedings@m_Mastering the Oceans Through Technology Pub Date : 1992-10-26 DOI: 10.1109/OCEANS.1992.607655

N. Brown

引用次数: 4

Fast Repetition Rate (FRR) Fluorometer For Making In Situ Measurements Of Primary Productivity 用于原位测量初级生产力的快速重复率荧光计

OCEANS 92 Proceedings@m_Mastering the Oceans Through Technology Pub Date : 1992-10-26 DOI: 10.1109/OCEANS.1992.607657

Zbigniew, Kolber, Paul G. Falkowski

{"title":"Fast Repetition Rate (FRR) Fluorometer For Making In Situ Measurements Of Primary Productivity","authors":"Zbigniew, Kolber, Paul G. Falkowski","doi":"10.1109/OCEANS.1992.607657","DOIUrl":"https://doi.org/10.1109/OCEANS.1992.607657","url":null,"abstract":"Understanding the ocean carbon cycle and predicting how climate-induced changes in ocean circulation will affect ocean productivity requires that (a) primary productivity be measured with high spatial and temporal resolution, and (b) natural variability in primary productivity be parameterized with regardto environmental factors such as nutrient availabuity, irradiance, and temperature. Instrumentation to measure primary productivity from the stimulated in vivo fluoresence of phytoplankton chlorophyll is currendy being developed at Brookhaven National Laboratory. The instrumentation is based on fast repetition rate (FRR) fluorometry, and provides a robust technique for deriving the photosynthetic rates in situ. Moreover, the FRR methodology directly measures several photosynthetic parameters such as effective absorption cross- section, photo-conversion efficiency, and turnover time of photosynthesis, and relate them to primary productivity. Since photosynthetic parameters are affected by environmental factors such as fight and nutrient availability, the relationship between these parameters and primary productivity can be established. By understanding such relationships, prognostic models of primary productivity can be developed and parameterized.","PeriodicalId":158109,"journal":{"name":"OCEANS 92 Proceedings@m_Mastering the Oceans Through Technology","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115325579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 33

Development Of Expendable Optical Fiber Cable ROV "UROV" 一次性光缆ROV“UROV”的研制

OCEANS 92 Proceedings@m_Mastering the Oceans Through Technology Pub Date : 1992-10-26 DOI: 10.1109/OCEANS.1992.607689

T. Aoki, S. Tsukioka, M. Hattori, T. Adachi, N. Ietsugu, T. Itoh, T. Nakae

引用次数: 12

Ocean Probe - An Experiment In Operational Oceanography 海洋探测器-应用海洋学实验

OCEANS 92 Proceedings@m_Mastering the Oceans Through Technology Pub Date : 1992-10-26 DOI: 10.1109/OCEANS.1992.612631

D. Hazen, A. Bowen, K. Thompson, S. A. Matheson

引用次数: 0

Millimeter-wave Scattering In A Wind-wavetank 毫米波在风波箱中的散射

OCEANS 92 Proceedings@m_Mastering the Oceans Through Technology Pub Date : 1992-10-26 DOI: 10.1109/OCEANS.1992.612696

M. Keller, W. Keller, B. Gotwols, D.S. Raley

{"title":"Millimeter-wave Scattering In A Wind-wavetank","authors":"M. Keller, W. Keller, B. Gotwols, D.S. Raley","doi":"10.1109/OCEANS.1992.612696","DOIUrl":"https://doi.org/10.1109/OCEANS.1992.612696","url":null,"abstract":"M illim e t e r -wave 6; c at t e r o m e t e r measurements were conducted in the NRL wind- wave facility at No and 515°incidence as a function of wind speed. The doppler spectra are consistent with Bragg scattering, so comparison with two-scale model functions is valid. Such comparison reveals that much work remains to be completed before our underslanding of the capillary waves with which millimeter-wave scatterometers are in resonance with is complete. For the past several years, the Naval Research Laboratory has been conducting scattering experiments in a wind-wave facility. These experiments have included backscattering measurements at X-band (10 GHz) that are reported elsewhere (l), and measurements of the modulation transfer function (mtf) at that frequency and at Ka-band (35 GHz). The good agreement obtained between the X-band wavetank results and open ocean measurements at similar frequencies suggested that the wavetank datal may provide an excellent test of scattering theories developed based on open ocean measurements. Further, if the data are consistent with Bragg scattering at Ka-band, then the scatterometer becomes one of the few instruments capable of measuring waves in the capillary regime.","PeriodicalId":158109,"journal":{"name":"OCEANS 92 Proceedings@m_Mastering the Oceans Through Technology","volume":"126 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116435451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Computational Experience With The Generalized Kalman Filter For Dynamic Heave Compensation 广义卡尔曼滤波在动态升沉补偿中的计算经验

OCEANS 92 Proceedings@m_Mastering the Oceans Through Technology Pub Date : 1992-10-26 DOI: 10.1109/OCEANS.1992.612701

F. el-Hawary, F. Aminzadeh, G. Mbamalu

引用次数: 2

Underwater Signal Enhancement Using A Sine-wave Representation 使用正弦波表示的水下信号增强

OCEANS 92 Proceedings@m_Mastering the Oceans Through Technology Pub Date : 1992-10-26 DOI: 10.1109/OCEANS.1992.612733

T. Quatieri, R. B. Dunn, R. McAulay, T. E. Hanna

引用次数: 4

A Forward Array Looking Wide Band Phased Sonar For Autonomous Vehicles (AUV) 一种面向自动驾驶车辆的前向阵宽带相控声呐

OCEANS 92 Proceedings@m_Mastering the Oceans Through Technology Pub Date : 1992-10-26 DOI: 10.1109/OCEANS.1992.607711

F. Nussbaum, J. G. Kelly, J. C. Cochran

{"title":"A Forward Array Looking Wide Band Phased Sonar For Autonomous Vehicles (AUV)","authors":"F. Nussbaum, J. G. Kelly, J. C. Cochran","doi":"10.1109/OCEANS.1992.607711","DOIUrl":"https://doi.org/10.1109/OCEANS.1992.607711","url":null,"abstract":"~ b s t r a c t Basic to the success of almost all AUV missions is the ability of a vehicle to detect and in many cases m, not just turn away from, an obstacle dead ahead. This requirement is made considerably more challenging when an AUV operates in shallow water because boundary reverberation will degrade acoustic sensor performance. Sensors currently available for forward mounting into an AUV either do not have adequate directional discrimination to allow for shallow water operation or they operate at a frequency so high that detection range and (as a result) forward speed are severely limited. A forward-looking phased array sonar that operates over a wide frequency range (50200 kHz) can detect obstacles at long ranges and provide fairly precise images of objects at short ranges. For specialized missions, this sonar would operate in concert with specialized mission sensors to provide performance gains in search, detection, classification, and vehicle control. NUWC is currently working with Raytheon, Submarine Signal Division, to demonstrate a wideband (50-200 kHz) phased array sonar for small underwater submersibles. By the end of Ey92, a 12 x 12 inch, 1600 element receive array, operating at 30% sparseness (500 individual element channels) will be fabricated and tested. During the course of this effort, new technology has been developed that configures single sheets of polyvinylidene diflouride polymer (PVDF) into densely populated arrays of independent acoustic sensors. This technology provides unprecedented flexibility in the design of acoustic receive arrays, making it feasible and affordable to configure acoustic receivers for specialized applications. The NUWC array is being configured to a plane surface, but this technology makes application of complex phased arrays to a curved surface a practical option.","PeriodicalId":158109,"journal":{"name":"OCEANS 92 Proceedings@m_Mastering the Oceans Through Technology","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128960708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2