IEEE Journal of Oceanic Engineering

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Publication Year: 2010, Page(s):C1 - C4
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• IEEE Journal of Oceanic Engineering publication information

Publication Year: 2010, Page(s): C2
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• Guest Editorial - Special Issue on Sediment Acoustic Processes: Part III

Publication Year: 2010, Page(s):449 - 452
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• Detailed Bathymetric Surveys Offshore Santa Rosa Island, FL: Before and After Hurricane Ivan (September 16, 2004)

Publication Year: 2010, Page(s):453 - 470
Cited by:  Papers (10)
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Two weeks before Hurricane Ivan reworked the shores and nearshore seafloor of the northeastern Gulf of Mexico, swath bathymetry surveys were conducted with high-frequency (300 and 455 kHz) multibeam echosounders in three areas offshore Santa Rosa Island, FL, an 80-km barrier island extending west from Destin to Pensacola Bay, FL. These surveys were repeated in late October 2004, six weeks after th... View full abstract»

• Fine-Scale Volume Heterogeneity in a Mixed Sand/Mud Sediment off Fort Walton Beach, FL

Publication Year: 2010, Page(s):471 - 487
Cited by:  Papers (14)
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As part of the effort to characterize the acoustic and physical properties of the seafloor during the high-frequency 2004 Sediment Acoustics Experiment (SAX04), fine-scale variability of sediment sound speed and density was measured in a medium quartz sand using diver cores and an in situ conductivity probe. This study has a goal of providing environmental input to high-frequency backscatter model... View full abstract»

• Physical Pore Properties and Grain Interactions of SAX04 Sands

Publication Year: 2010, Page(s):488 - 501
Cited by:  Papers (5)
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During the 2004 Sediment Acoustic eXperiment (SAX04), values of sediment pore properties in a littoral sand deposit were determined from diver-collected cores using traditional methods and image analysis on X-ray microfocus computed tomography (XMCT) images. Geoacoustically relevant pore-space properties of sediment porosity, permeability, and tortuosity were evaluated at scales ranging from the p... View full abstract»

• Time-of-Flight Measurements of Acoustic Wave Speed in a Sandy Sediment at 0.6–20 kHz

Publication Year: 2010, Page(s):502 - 515
Cited by:  Papers (6)
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There is considerable interest within the underwater acoustics community as to whether a fluid model or a poroelastic (Biot) model provides a more accurate representation of sandy sediments. One key metric used to determine this is the acoustic wave speed in the seabed, since the Biot model predicts a sound speed that is frequency dependent whereas the traditional fluid model assumes a sound speed... View full abstract»

• Measurement and modeling of seabed particle motion using buried vector sensors

Publication Year: 2010, Page(s):516 - 537
Cited by:  Papers (6)
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A technique was developed to measure the speed of sound in marine sediments at discrete frequencies from 0.6 to 3 kHz by transmitting pulses from acoustic projectors within the water column and measuring the pressure and acceleration components of the acoustic field on vector sensors buried in the seabed. The burial depth and orientation of the vector sensors was determined by analyzing the amplit... View full abstract»

• Measurement of the frequency dependence of the sound speed and attenuation of seafloor sands from 1 to 400 kHz

Publication Year: 2010, Page(s):538 - 557
Cited by:  Papers (8)
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Measurements of sound speed and attenuation were performed over a frequency range from 1 to 400 kHz in the sandy seafloor near Ft. Walton Beach, FL, as part of the 2004 Sediment Acoustics Experiment (SAX04). The measurements at the lowest frequencies, from 1 to 20 kHz, were performed by transmitting tone burst signals from two acoustic sources positioned at depths up to 1 m below the seafloor whic... View full abstract»

• Wave Power Absorption as a Function of Water Level and Wave Height: Theory and Experiment

Publication Year: 2010, Page(s):558 - 564
Cited by:  Papers (14)
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This paper investigates the sensitivity of a wave power system to variations in still water levels and significant wave heights. The system consists of a floating point absorber connected to a linear generator on the seabed. Changing still water levels are expected to affect the power absorption, since they will displace the equilibrium position for the generator translator. Similarly, changing si... View full abstract»

• Numerical Modeling for an In Situ Single-Point-Mooring Cage System

Publication Year: 2010, Page(s):565 - 573
Cited by:  Papers (11)
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To mitigate marine pollution intensity at the sea bottom, an automatic rotating type of cage systems such as a single-point-mooring (SPM) cage system is often regarded as biofriendly equipment for fish farming in the open sea due to spreading uneaten waste feed and fish feces into a vast area. Though the SPM cage dynamic features under regular sea state have been investigated in previous researche... View full abstract»

• A Potential 4-D Fingertip Force Sensor for an Underwater Robot Manipulator

Publication Year: 2010, Page(s):574 - 583
Cited by:  Papers (8)
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The latest generation of underwater robots employ manipulators without force sensors. Accordingly, this paper presents a novel 4-D fingertip force sensor based on an E-type membrane for underwater robot manipulators. Specifically, this sensor is aimed at obtaining the accurate interaction force between underwater robot manipulators and other objects. Moreover, a seal technique and natural pressure... View full abstract»

• An Efficient Digital CZT Beamforming Design for Near-Field 3-D Sonar Imaging

Publication Year: 2010, Page(s):584 - 594
Cited by:  Papers (26)  |  Patents (1)
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A planar array of sensors is required to collect the signals coming from a 3-D scene to generate volumetric underwater acoustic images. The method most frequently used to process the acquired signals is a digital beamforming algorithm. In general, owing to the high number of sensors and beam signals, the computational load is prohibitive for real-time image generation. In the literature, a frequen... View full abstract»

• Improved torpedo range estimation using the fast orthogonal search

Publication Year: 2010, Page(s):595 - 602
Cited by:  Papers (2)
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A modified torpedo detection algorithm (MTDA) that improves upon the range estimates of an earlier torpedo detection algorithm (TDA) is presented in this work. The original TDA used the fast orthogonal search (FOS) algorithm to estimate the frequency of direct-path and a surface-reflected-path signal emitted by a torpedo. This technique assumed that the torpedo was traveling directly at the receiv... View full abstract»

• A geoacoustic bottom interaction model (GABIM)

Publication Year: 2010, Page(s):603 - 617
Cited by:  Papers (24)
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The geoacoustic bottom interaction model (GABIM) has been developed for application over the low-frequency and midfrequency range (100 Hz to 10 kHz). It yields values for bottom backscattering strength and bottom loss for stratified seafloors. The model input parameters are first defined, after which the zeroth-order, nonrandom problem is discussed. Standard codes are used to obtain bottom loss, u... View full abstract»

• Detection of $H$ -Phase Signals From Hydroacoustic Data Using Quadratic Classification

Publication Year: 2010, Page(s):618 - 622
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The Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO) operates a network of underwater hydrophones as part of the International Monitoring System (IMS). Data from this network are processed at the International Data Centre (IDC), Vienna, Austria. One of the objectives is to identify the signals that are due to an underwater explosion, the so-called H-phase signals. Data provided by... View full abstract»

Publication Year: 2010, Page(s):623 - 634
Cited by:  Papers (18)
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Underwater acoustic networks have recently emerged as a new area of research in wireless networking. These networks can support a large number of applications such as environmental and underwater equipment monitoring. In recent years, there has been substantial work on protocol design for these networks with most efforts focusing on MAC and network layer protocols. Despite being a fundamental netw... View full abstract»

• Adaptive Channel Estimation and Data Detection for Underwater Acoustic MIMO–OFDM Systems

Publication Year: 2010, Page(s):635 - 646
Cited by:  Papers (52)
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In this paper, frequency and time correlation of the underwater channel are exploited to obtain a low-complexity adaptive channel estimation algorithm for multiple-input-multiple-output (MIMO) spatial multiplexing of independent data streams. The algorithm is coupled with nonuniform Doppler prediction and tracking, which enable decision-directed operation and reduces the overhead. Performance is d... View full abstract»

• Configuration Optimization of Supercavitating Underwater Vehicles With Maneuvering Constraints

Publication Year: 2010, Page(s):647 - 662
Cited by:  Papers (4)
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This paper presents configuration optimization studies on supercavitating underwater vehicles. These innovative vehicles operate at extremely high speeds due to the drag reduction achieved through the supercavitating regime. Their dynamic behavior is complex and highly nonlinear which makes their guidance and control particularly challenging. The extreme performance of the vehicles and the complex... View full abstract»

Publication Year: 2010, Page(s):663 - 678
Cited by:  Papers (80)  |  Patents (1)
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This paper considers the vehicle navigation problem for an autonomous underwater vehicle (AUV) with six degrees of freedom. We approach this problem using an error state formulation of the Kalman filter. Integration of the vehicle's high-rate inertial measurement unit's (IMU's) accelerometers and gyros allow time propagation while other sensors provide measurement corrections. The low-rate aiding ... View full abstract»

• 2011 IEEE membership form

Publication Year: 2010, Page(s):679 - 680
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• IEEE Oceanic Engineering Society Information

Publication Year: 2010, Page(s): C3
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Aims & Scope

The IEEE Journal of Oceanic Engineering (ISSN 0364-9059) is the online-only quarterly publication of the IEEE Oceanic Engineering Society (IEEE OES). The scope of the Journal is the field of interest of the IEEE OES, which encompasses all aspects of science, engineering, and technology that address research, development, and operations pertaining to all bodies of water. This includes the creation of new capabilities and technologies from concept design through prototypes, testing, and operational systems to sense, explore, understand, develop, use, and responsibly manage natural resources.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
Mandar Chitre
Acoustic Research Laboratory
National University of Singapore