| Navy Shipboard Lasers for Surface, Air, and Missile Defense: Background and Issues for Congress |
19 Oct 2012 |
67 pages |
| Authors:
Ronald O'Rourke; LIBRARY OF CONGRESS WASHINGTON DC CONGRESSIONAL RESEARCH SERVICE
|
 | Department of Defense (DOD) development work on high-energy military lasers, which has been underway for decades, has reached the point where lasers capable of countering certain surface and air targets at ranges of about a mile could be made ready for installation on Navy surface ships over the next few years. More powerful shipboard lasers, which could become ready for installation in subsequent years, could provide Navy surface ships with ... |
|
| Applying Modeling and Simulation to Predict Human Injury due to a Blast Attack on a Shipboard Environment |
Oct 2012 |
6 pages |
| Authors:
Brigid Jacobs; Lee A Young; Howard Champion; Mary Lawnick; Michael Galameau; Vern Wing; William Krebs; NAVAL HEALTH RESEARCH CENTER SAN DIEGO CA
|
| Computer models simulating blast effects on ship personnel are needed, but thus far, development of models has focused on simulating blast effects on ship structure and equipment. Thus, capability gaps exist in predicting the type and severity of injuries from surface or underwater weapon impact, estimating medical response requirements, and determining outcomes of patients. The Human Injury & Treatment (HIT) model addresses these gaps. Algorithms are utilized for scoring the ... |
|
| DCL System Research Using Advanced Approaches for Land-based or Ship-based Real-Time Recognition and Localization of Marine Mammals |
30 Sep 2012 |
19 pages |
| Authors:
Peter J Dugan; Christopher W Clark; Yann A LeCun; Sofie M Van Parijs; CORNELL UNIV ITHACA NY LAB OF ORNITHOLOGY
|
| We aim to investigate advancing the state of the art of detection, classification and localization (DCL) in the field of bioacoustics. The two primary goals are to develop transferable technologies for detection and classification in: (1) the area of advanced algorithms, such as deep learning and other methods; and (2) advanced systems, capable of real-time and archival and processing. This project will focus on long-term, continuous datasets to provide automatic ... |
|
| Cloud Computing and Virtual Desktop Infrastructures in Afloat Environments |
Jun 2012 |
98 pages |
| Authors:
Stefan E Gillette; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| The phenomenon of cloud computing has become ubiquitous among users of the Internet and many commercial applications. Yet, the U.S. Navy has conducted limited research in this nascent technology. This thesis explores the application and integration of cloud computing both at the shipboard level and in a multi-ship environment. A virtual desktop infrastructure, mirroring a shipboard environment, was built and analyzed in the Cloud Lab at the Naval Postgraduate School, ... |
|
| Analysis of Alternative Watch Schedules for Shipboard Operations: A Guide for Commanders |
Mar 2012 |
130 pages |
| Authors:
Donald A Roberts; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| In recent years optimal manning has been implemented on U.S. Navy surface ships where crew sizes have been reduced. This undermanning has resulted in a requirement for sailors to stand longer watches and get less sleep, making for less effective sailors while standing watch. Alternative watch schedules can be used that minimize fatigue of sailors while on watch. The first objective of this study is to analyze a USS San ... |
|
| Manpower Issues Involving Visit, Board, Search, and Seizure (VBSS) |
Mar 2012 |
76 pages |
| Authors:
Emory A Rank; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| Nearly all Cruiser Destroyer (CRUDES) ships deploy through potential piracy areas in the five-million square mile Fifth Fleet domain, which is why all Navy warships maintain Visit, Board, Search and Seizure (VBSS) shipboard teams. This research analyzed advantages and disadvantages of the VBSS structure including alternative approaches to how the Navy could train, certify and deploy VBSS teams, e.g., Fifth Fleet detachments. Ship's company VBSS teams face an unattractive tradeoff ... |
|
| Evaluation of a Modified Atmosphere Packaging System to Increase Fresh Fruit and Vegetable Shelf Life for Extended Military Supply Chains |
24 Feb 2012 |
161 pages |
| Authors:
Harry Kirejczyk; Jeremy Whitsitt; ARMY NATICK SOLDIER RESEARCH DEVELOPMENT AND ENGINEERING CENTER MA
|
| This report documents the evaluation of a case level Modified Atmosphere Packaging System (MAPS) designed to extend product shelf life of military fresh fruit and vegetables (FF&V). Three key items - iceberg lettuce, romaine lettuce, and broccoli crowns - were tested in the Pacific Region Guam supply chain. Due to longer total distribution times and/or less frequent end customer deliveries, some military FF&V supply chains require extra product shelf life ... |
|
| UAV Deck Recovery Stability Analysis |
Jan 2012 |
19 pages |
| Authors:
Bernard Ferrier; John Duncan; HOFFMAN ENGINEERING CORP ANOKA MA
|
| A manned or unmanned helicopter-ship qualification program (Dynamic Interface Testing) evaluates, improves, and/or develops all aspects of shipboard helicopter compatibility. Issues addressed during a test may include the adequacy,effectiveness, and safety of shipboard aviation support facilities and helicopter recovery procedures. Manned and unmanned aircraft share a number of common issues as those related to deck handling, repositioning, tie down, refueling and maintenance tasks. Procedures are further affected by the ability ... |
|
| Laser Weapon System (LAWS) Adjunct to the Close-In Weapon System (CIWS) |
Jan 2012 |
9 pages |
| Authors:
Robin Staton; Robert Pawlak; NAVAL SURFACE WARFARE CENTER DAHLGREN DIV VA
|
| The Naval Sea Systems Command (NAVSEA) established the Navy Directed Energy Weapons Program Office in January 2002 and subsequently chartered the Directed Energy and Electric Weapon Systems Program Office (PMS 405) in July 2004. Its mission is to change the way the Navy fights in the 21st century by transitioning directed energy and electric weapon technology, providing the warfighter with additional tools to fight today's and tomorrow's wars. In support ... |
|
| Nonlethal Small-Vessel Stopping with High-Power Microwave Technology |
Jan 2012 |
5 pages |
| Authors:
Jacob Walker; NAVAL SURFACE WARFARE CENTER DAHLGREN DIV VA
|
| The employment of small vessels to attack merchant ships and other seafaring units has emerged as a significant threat to international navigation and safe operations on the high seas. Along with swarm tactics, small vessels have been known to carry improvised explosive devices, help smuggle terrorists and weapons, and serve as attack platforms on the water for larger weapons. While kinetic solutions serve as the decisive option, alternative solutions that ... |
|
| Ship to Shore Data Communication and Prioritization |
Dec 2011 |
130 pages |
| Authors:
Phillip L Allen; David P Gravseth; Michael B Huffman; Richard W Hughes; Bradley J May; Son N Nguyen; James W Pinner; Edgar C Pontejos; Debra R Reinertson; Michael J Roderick; NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF SYSTEMS ENGINEERING
|
| Ships are plagued by connectivity issues while underway resulting in backlogs of data needing to get off a ship. This capstone project's main focus was to provide the Commanding Officer (CO) the capability to select and prioritize outgoing data flow from ship-to-shore dependent on their ship's operational situation while afloat. In carrying out this effort, the team focused its analysis on the Navy's Automated Digital Network System (ADNS) and Information ... |
|
| Vibrational Analysis of a Shipboard Free Electron Laser Beam Path |
Dec 2011 |
73 pages |
| Authors:
Bryan M Gallant; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| This thesis explores the deployment of a free electron laser (FEL) weapon system in a shipboard vibration environment. A concept solid model of a shipboard FEL is developed and used as a basis for a finite element model which is subjected to vibration simulation in MATLAB. Vibration input is obtained from ship shock trials data and wave excited motion data from ship motion simulation software. Emphasis is placed on the ... |
|
| FEL Mirror Response to Shipboard Vibrations |
Dec 2011 |
77 pages |
| Authors:
Joshua A Beauvais; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| The Optical cavity of a Free Electron Laser (FEL) is composed of components that must be maintained to very tight tolerances. The shipboard environment is one that will preclude a direct coupling of FEL components to the ship. This thesis will explore the basis for these tight tolerances, and how to isolate them from the FEL. A solid model of a potential FEL system will be developed using SolidWorks. This ... |
|
| In-Situ Wave Observations in the High Resolution Air-Sea Interaction DRI |
30 Sep 2011 |
8 pages |
| Authors:
Thomas H Herbers; Tim T Janssen; NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF OCEANOGRAPHY
|
| Ocean wave prediction models, based on a spectral energy balance, are widely used to obtain wind-wave forecasts and hindcasts on global and regional scales (e.g., Komen et al., 1994). However, these inherently stochastic models assume a Gaussian and homogeneous sea state and thus do not describe the nonlinear instability processes that can dramatically alter the structure of wave groups and produce anomalously large waves, also known as freak or rogue ... |
|
| Analysis of Coherent Microwave Data Collected on the Ocean over Two Decades |
30 Sep 2011 |
9 pages |
| Authors:
William J Plant; WASHINGTON UNIV SEATTLE APPLIED PHYSICS LAB
|
| The long-term goal of this project is to fully utilize microwave backscattering data sets that have been collected on the ocean over the last two decades. The prime objective is to better understand the formation of breaking waves on the ocean and their effect on microwave backscatter. The scientific objectives of this study are to investigate wave shadowing and wave modulation in low-grazing-angle backscatter from the ocean. Our approach is ... |
|
| RF Performance Predictions for Real Time Shipboard Applications |
30 Sep 2011 |
6 pages |
| Authors:
Richard Sprague; Priya Babu; Amalia E Barrios; SPACE AND NAVAL WARFARE SYSTEMS CENTER PACIFIC SAN DIEGO CA ATMOSPHERIC PROPAGATION BRANCH
|
| Long-term Goals: Develop electromagnetic propagation models, that perform equally well over land and sea and in the presence of anomalous propagation conditions for both surface and airborne emitters, for use in operational or engineering propagation assessment systems. The specific technical objectives are to: (1) develop a method to extract rainfall data from the tactical scans of the SPS-48 radar and provide the rain data in a form suitable for propagation ... |
|
| IWISE: Observations of Internal Wave and Tide Generation in the Luzon Strait Using Shipboard Surveys and Oceanographic Moorings |
30 Sep 2011 |
8 pages |
| Authors:
Steven R Ramp; SOLITON OCEAN SERVICES INC CARMEL VALLEY CA
|
| The long-term goal of this research is to enhance our understanding of coastal oceanography by means of applying simple dynamical theories to high-quality observations obtained in the field. The objective of this grant is to improve our understanding of how the large-amplitude internal waves and tides in the northeastern South China Sea are generated via the interaction of the barotropic tide with the ridges and islands in the Luzon Strait. ... |
|
| Produce Sanitation System Evaluation |
MAY 2011 |
32 pages |
| Authors:
John Gildea; Louis Jamieson; ARMY NATICK SOLDIER RESEARCH DEVELOPMENT AND ENGINEERING CENTER MA
|
| This report documents an evaluation, performed by the Department of Defense (DoD) Combat Feeding Directorate (CFD), of an automated produce cleansing and sanitizing sink in an effort to facilitate a more effective and efficient means for cleansing and sanitizing fresh fruits and vegetables (FF&V) aboard Navy vessels, The sink saves labor associated with the washing of produce in food service operations by automatically performing this effort, thus allowing food service ... |
|
| Shipboard Landing Challenges for Autonomous Parafoils |
May 2011 |
11 pages |
| Authors:
Charles W Hewgley; Oleg A Yakimenko; Nathan J Slegers; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| This paper examines some of the challenges that must be overcome if future aerial delivery systems are to have the capability to land on the flight deck of a ship underway. The unique aspects of trajectory planning for landing on a ship s flight deck are first examined, followed by formulation of the position estimation problem for a moving target. Some preliminary investigations into characterizing the wind over a moving ... |
|
| Implementing Quality of Service in Shipboard Power System Design |
APR 2011 |
20 pages |
| Authors:
Norbert Doerry; Jr. Amy John; NAVAL SEA SYSTEMS COMMAND WASHINGTON DC
|
|
| Integrated Warfighter Biodefense Program (IWBP) - Phase 2 |
03 MAR 2011 |
88 pages |
| Authors:
Franklin T. Abbott; Ganesh Vaidyanathan; QUANTUM LEAP INNOVATIONS INC NEWARK DE
|
| The aim of the Integrated Warfighter Biodefense Program (IWBP) is to develop innovative technology that can be deployed to prevent U.S. armed forces from becoming battle or non-battle casualties, and especially to reduce morbidity and mortality throughout the increasingly complex battlespace of current operations. The initial program was specifically linked to the operational requirements of end-users at US Northern Command (USNORTHCOM) and US Pacific Command (PACOM). In this summary of ... |
|
| Intelligent Advanced Communications IP Telephony Feasibility for the US Navy - Phase 3 |
MAR 2011 |
382 pages |
| Authors:
Todd D. Binns; Jerald Oram; Stephen Keohane; L-3 COMMUNICATIONS HENSCHEL NEWBURYPORT MA
|
| The objective of this research paper is to detail our exploration of open source SIP solutions as a viable alternative to building an Assured Services SIP end instrument (aka IP phone) as defined by the DOD Unified Capabilities and requirements specification. This report is based on the following research and validation testing: - L-3 Maritime Systems internal research, - L-3 Maritime Systems VoIP lab research, - L-3 Maritime Systems prototyping ... |
|
| Literature Review of the State of the Art for Graphical User Interfaces (GUI) for a Series of Oil Quality Monitoring Sensors for Shipboard Equipment |
Mar 2011 |
46 pages |
| Authors:
K J KarisAllen; FACTS ENGINEERING INC HALIFAX (NOVA SCOTIA)
|
| Over the past several years, DRDC Atlantic has embarked on a program for the evaluation of existing technologies, as well as the development of new technologies for application in platform specific lubricating oil condition monitoring systems. The current study is primarily focused on conducting a literature review of the current state of the art for graphical user interfaces (GUI) with general discussions of background technologies and potential frameworks for developing ... |
|
| Information Systems Technician Rating Stakeholders: Implications for Effective Performance |
Jan 2011 |
84 pages |
| Authors:
Margaret C Harrell; Harry J Thie; Roland J Yardley; Maria C Lytell; RAND NATIONAL DEFENSE RESEARCH INST SANTA MONICA CA
|
| The U.S. Navy is organized by five warfare enterprises and with various providers that contribute services, materiel, and human resources to achieve overall readiness. This system is characterized by complex networks of organizations with disparate goals and priorities. For example, the relative emphases on efficiency and effectiveness vary throughout this enterprise system. The Consolidated Afloat Networks and Enterprise Services (CANES) initiative is designed to consolidate and improve the networks on ... |
|
| Novel Membrane Separation System for Shipboard Oily Wastewater Treatment |
DEC 2010 |
68 pages |
| Authors:
David W. Maribo; NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD
|
| The objective of the demonstration is to improve fouling resistance and process reliability of ceramic membrane modules used in the secondary treatment of oily wastewater using a nonporous polymer coating, thereby reducing life-cycle costs. A secondary objective was to improve acquisition cost of membranes through the use of polymeric spiral-wound membranes in lieu of ceramic. This study has so far shown that ceramic membranes coated with one layer of 0.1% ... |
|
| Demonstration of Advanced Oxidation Treatment of Shipboard Blackwater and Graywater |
DEC 2010 |
157 pages |
| Authors:
Tina Lerke; Sheila Riggs; Howard Castle; NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD
|
| The demonstration project was conducted to evaluate a shipboard wastewater treatment system that could potentially meet the restrictive requirements of Department of Defense vessel design and operation and meet current and future effluent discharge standards. The laboratory portion of the project evaluated advanced oxidation technology generated via ozone and ultraviolet light. The Navalis Orion Model 5 Advanced Oxidation Wastewater Treatment System was tested with simulated shipboard wastewater. The results show ... |
|
| RF Performance Predictions for Real Time Shipboard Applications |
30 SEP 2010 |
5 pages |
| Authors:
Richard Sprague; Priya Babu; Nathan Fuhrer; Amalia E. Barrios; SPACE AND NAVAL WARFARE SYSTEMS CENTER PACIFIC SAN DIEGO CA ATMOSPHERIC PROPAGATION BRANCH
|
| The specific technical objectives are to 1) develop a method to extract rainfall data from the tactical scans of the SPS-48 radar and provide the rain data in a form suitable for propagation models such as the Earth-to-Satellite Propagation Model with METOC (ESPM2) and the Advanced Propagation Model (APM); and 2) modify the current statistics-based rain attenuation model within the ESPM2 and the APM to ingest real time rainfall rate ... |
|
| Hardware Model Of A Shipboard Zonal Electrical Distribution System (ZEDS): Alternating Current/Direct Current (AC/DC) |
JUN 2010 |
139 pages |
| Authors:
Chad N. Tidd; MASSACHUSETTS INST OF TECH CAMBRIDGE
|
| A hardware model of a shipboard electrical distribution system based on aspects of the DDG 51 Flight IIA, Arleigh Burke class, 60Hz Alternating Current (AC) and the future direct current (DC), zonal electrical distribution system (ZEDS). These distribution boards were designed and built for the purpose of testing electrical system components at the Massachusetts Institute of Technology's Laboratory for Electromagnetic and Electronic Systems (LEES). Two 5 kW generators serve as ... |
|
| Naval Law Review. Volume 60, 2010 |
Jan 2010 |
236 pages |
| Authors:
NAVAL JUSTICE SCHOOL NEWPORT RI
|
| Partial contents: CONTROLLING THE USE OF FORCE IN CYBERSPACE: THE APPLICATION OF THE LAW OF ARMED CONFLICT DURING A TIME OF FUNDAMENTAL CHANGE IN THE NATURE OF WARFARE, UNITED STATES ENVIRONMENTAL LAW APPLIED IN THE ARCTIC OCEAN: FRUSTRATING THE BALANCE OF THE LAW OF THE SEA, NATIONAL SOVEREIGNTY, AND INTERNATIONAL COLLABORATION EFFORTS, THE SHIPBOARD PANDORA S BOX: THE OPERATIONAL REALITY THAT AN EXPECTATION OF PRIVACY EXISTS IN ELECTRONIC COMMUNICATIONS ABOARD ... |
|
| Organizing CLF Replenishment Events into CLF Voyages - The CLF Voyages Template |
Jul-2009 |
|
| Authors:
Jason P Jordan; CENTER FOR NAVAL ANALYSES ALEXANDRIA VA
|
 | Since 2001 CNA has maintained a database that records the replenishment activity of the combat logistics force (CLF) fleet of ships. Each entry in this database represents a single event between a CLF ship and a ship or port customer. This paper addresses these events and the data on the activity of CLF ships during at-sea periods. |
|
| Ship Integration of Energy Scavenging Technology for Sea Base Operations |
Jul 2009 |
68 pages |
| Authors:
Jennifer Lei; Ignacio Minana; Matthew Young; Daniel Dabrowski; NAVAL SURFACE WARFARE CENTER CARDEROCK DIV WEST BETHESDA MD
|
| Offshore renewable energy scavenging methods have become a major area of research in recent years. The U.S. Navy is especially interested in the ocean potential to provide clean energy and fresh water from sources like wind, wave, solar, current, and biological resources. It is important for the Navy to consider the integration of energy collection technologies into a mobile resupply platform. This scavenging ship will reduce the need for costly ... |
|
| Shipboard Aggregate Power Monitoring |
JUN 2009 |
111 pages |
| Authors:
Keith P. Douglas; MASSACHUSETTS INST OF TECH CAMBRIDGE
|
| Modern naval warships rely on vast arrays of sensor networks to evaluate the performance of mission critical systems. The power distribution network offers an alternative solution for tracking the performance of mission critical systems. Research conducted at Massachusetts Institute of Technology's Laboratory for Electromagnetic and Electronic Systems (LEES) has proven that the power distribution network contains vital information that can provide performance monitoring and automatic diagnostic functions. This thesis will ... |
|
| Hardware Model of a Shipboard Generator |
19 MAY 2009 |
129 pages |
| Authors:
Gregory L. Elkins; MASSACHUSETTS INST OF TECH CAMBRIDGE
|
| A hardware model of the Gas Turbine Generator (GTG) in use on the US Navy's DDG-51 Class Destroyer is constructed for use as a lab apparatus at the Massachusetts Institute of Technology's Laboratory for Electromagnetic and Electronic Systems (LEES). The components of the hardware model include a 5 kilowatt three-phase generator; DC power supplies and motors that function as the prime mover; computer software to implement speed and voltage control; ... |
|
| Control of Marine Unmanned Air Vehicles: Concepts for Unmanned Aircraft Systems Family of Systems Command and Control in Amphibious Operations |
10-Feb-2009 |
18 pages |
| Authors:
D C Lemke; MARINE CORPS COMMAND AND STAFF COLL QUANTICO VA
|
| Unmanned air vehicles (UAVs) have been mitigating risks since February 1863, when Charles Perley used an alarm clock timer linked to bomb bay doors on a hot air balloon to drop ordnance behind enemy lines in the Civil War. The desire to wage war with tools that mitigate risk to human life and that are resistant to the environmental, physical, and mental stresses of combat has led to the growth ... |
|
| DDG-51 Engineering Training: How Simulators Can Help |
Jan-2009 |
118 pages |
| Authors:
Laurence Smallman; Clifford A Grammich; Roland J Yardley; James G Kallimani; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| U.S. Navy surface combatant crews undergo extensive and rigorous training to operate their ships. The training needs are challenging for crews on DDG-51-class destroyers, the most numerous ships among the surface ship combatants, and specifically for engineers on these craft. Much of this training is done underway, but most can be done in port or on simulators at considerable savings. The Director, Assessment Division (OPNAV N81) therefore asked the RAND ... |
|
| Rapid Fuel Quality Surveillance Through Chemometric Modeling of Near-Infrared Spectra |
Jan-2009 |
|
| Authors:
Robert E Morris; Mark H Hammond; Jeffrey A Cramer; Kevin J Johnson; Braden C Giordano; Kirsten E Kramer; Susan L Rose-Pehrsson; NAVAL RESEARCH LAB WASHINGTON DC CHEMISTRY DIV
|
| The use of liquid fuels necessitates methods to assess the quality and suitability of these fuels for their intended use. Traditionally, this is performed through a series of chemical and physical tests. However, in some operational situations, streamlined methods to reliably evaluate fuel quality would offer distinct advantages. The Naval Research Laboratory has been engaged in a research program to explore and develop rapid automated fuel quality surveillance technologies. Chemometric ... |
|
| Ar-Xe Laser: The Path to a Robust, All-Electric Shipboard Directed Energy Weapon |
18-Dec-2008 |
21 pages |
| Authors:
J P Apruzese; J D Sethian; J L Giuliani; M F Wolford; NAVAL RESEARCH LAB WASHINGTON DC
|
| High Energy Lasers (HELs) long ago demonstrated their potential to destroy missiles in flight, a capability which could significantly reduce the threat to the fleet arising from anti-ship cruise missiles. However, no HELs have been deployed to date. Until recently, there was no laser that had credible prospects of meeting the Navy's requirements for safety, power, size, beam quality, electrical drive, and atmospheric propagation. The electron beam pumped Ar-Xe laser ... |
|
| Initial Training of Surface Warfare Officers: A Historical Perspective from World War II to 2008 |
12-Dec-2008 |
90 pages |
| Authors:
James T Robinson; ARMY COMMAND AND GENERAL STAFF COLL FORT LEAVENWORTH KS
|
| This thesis will examine how Surface Warfare Officers (SWO) received their initial post-commission training beginning with the end of World War II and ending with the training program as of September 2008. Specifically, this thesis examines the reasons why there was no initial SWO training after commissioning and what changed to require initial training. The discussion also addresses the effects of changing the commissioning source to a mix of Naval ... |
|
| Next Steps in Network Time Synchronization For Navy Shipboard Applications |
01-Dec-2008 |
11 pages |
| Authors:
Karen O'Donoghue; Mark Glass; Timothy Plunkett; NAVAL SEA SYSTEMS COMMAND DAHLGREN VA
|
| Next generation Navy platform designs are evolving towards generalized multipurpose infrastructures based on open standards and commercial products. These platforms will support a wide range of new and expanding applications in a more flexible and dynamic manner than in previous designs. This new paradigm creates significant network time synchronization challenges. The Navy has been deploying the Network Time Protocol (NTP) in shipboard computing infrastructures to meet the current network time ... |
|
| Low Probability of Detection Underwater Acoustic Communications using Direct-Sequence Spread Spectrum |
Dec-2008 |
17 pages |
| Authors:
Wen-Bin Yang; T C Yang; NAVAL RESEARCH LAB WASHINGTON DC
|
| Direct-sequence spread spectrum is used for underwater acoustic communications between nodes, at least one of which is moving. At-sea data show that the phase change due to source motion is significant: The differential phase between two adjacent symbols is often larger than the phase difference between symbols. This poses a challenge to phase-detection based receiver algorithms when the source or receiver is moving. A pair of energy detectors that are ... |
|
| Scalable Emergency Response System for Oceangoing Assets Report on Defining Proposed Program |
17-Oct-2008 |
50 pages |
| Authors:
Edmond J Dougherty; ABLAZE DEVELOPMENT CORP VILLANOVA PA
|
| The scalable emergency system is intended to cover the full scale of possible at-sea incidents from the routine to the rare; from the detection and decontamination of a single piece of equipment before it is loaded on a vessel, to the response, rescue, containment and rehabilitation of a vessel in open waters. The system will be able to safely and quickly decontaminate cargo and personnel, as well as entire vessels ... |
|
| Formation of Large-Amplitude Wave Groups in an Experimental Model Basin |
Aug-2008 |
192 pages |
| Authors:
Christopher C Bassler; Gerritt E Lang; Sang S Lee; Jason B Carneal; Joel T Park; Dipper; Martin J Jr; NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD SHIP HYDROMECHANICS DEPT
|
| Experiments were performed to develop the capability to generate groups of large-amplitude waves in irregular seas in a model basin. Secondary objectives included demonstrating the ability to generate single extreme waves and also the application of experimental measurement techniques to produce point and wave-field topology data. The process was intended to be deterministic in nature, such that a large wave group or single large wave will occur in the model ... |
|
| Functional Requirements Study |
Jul-2008 |
52 pages |
| Authors:
G W Johnson; I M Gonin; L Alexander; B J Tetreault; ALION SCIENCES AND TECHNOLOGY NEW LONDON CT
|
| Automatic Identification System (AIS) is an autonomous broadcast that exchanges maritime safety/security information between participating vessels and shore stations. In addition to providing a means for maritime administrations to track the movement of vessels in coastal waters, AIS can be used to transmit information to ships while inport or underway to ensure safety-of-navigation and protection of the marine environment. In the USA, it is intended that this capability will enhance ... |
|
| Development of Real Time Non-Intrusive Load Monitor for Shipboard Fluid Systems |
01-Jun-2008 |
107 pages |
| Authors:
Perry L Branch; MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF MECHANICAL ENGINEERING
|
| Since the year 2000, the United States Navy has spent an average of half a billion dollars over the congressionally approved budget for shipbuilding. Additionally, most experts project that in order to meet the Chief of Naval Operation's goal of a 313 ship Navy, the annual ship building budget will have to increase by about two thirds. Exacerbating this problem is the rising cost of maintaining the current inventory of ... |
|
| Improving Shipboard Applications of Non-Intrusive Load Monitoring |
Jun-2008 |
165 pages |
| Authors:
Richard A Jones; MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF MECHANICAL ENGINEERING
|
| The Non-Intrusive Load Monitor (NILM) measures equipment performance by measuring and analyzing the source power to the equipment at a single point in the electrical system. Previous studies have proven the usefulness of the NILM system in characterizing the state of mechanical systems onboard U.S. Coast Guard vessels and at the U.S. Navy's Land Based Engineering Site (LBES) in Philadelphia, Pennsylvania. This thesis seeks to augment the NILM system by ... |
|
| Ship Airwake Correlation Analysis for the San Antonio Class Transport Dock Vessel |
21 MAY 2008 |
16 pages |
| Authors:
Jason Geder; Ravi Ramamurti; William C. Sandberg; NAVAL RESEARCH LAB WASHINGTON DC
|
| A space-time correlation function method is applied to the analysis of Large Eddy Simulation (LES) unsteady ship airwake data computed for the LPD 17. Correlation functions are computed for potentially dangerous velocity bursting events visually tracked in space and time in the air vehicle landing zone. It is shown that a correlation function approach is of potential value but the usefulness of the approach is very sensitive to the knowledge, ... |
|
| Shipboard Survey Near the Philippines with a Coherent X-Band Radar |
26 FEB 2008 |
7 pages |
| Authors:
William J. Plant; WASHINGTON UNIV SEATTLE APPLIED PHYSICS LAB
|
| The goal of this research was to survey microwave signatures of oceanographic features near the Philippine Island. To do this a dual-polarized, X-band Doppler radar was mounted on a ship cruising near the Philippine Islands and was used to image the surface signatures of oceanographic features. At the same time other investigators collected surface and subsurface data to determine environmental conditions and the characteristics of these features. By analyzing these ... |
|
| Bridging the Gap: The Untapped Potential of the MV-22 Osprey |
24-Feb-2008 |
19 pages |
| Authors:
C J Klemko; MARINE CORPS COMMAND AND STAFF COLL QUANTICO VA
|
| There has been much debate over the future of medium lift for the Marine Corps. With the service life of the CH-46E coming to an end, the Marine Corps needed to find a replacement. As technology progressed, a tiltrotor aircraft seemed like an ideal solution. The Marine Corps pursued that option, resulting in the MV-22 Osprey. Over the years, the Osprey program has generated much criticism. Skeptics argued about the ... |
|
| Commonality in the CH-46E Community |
19-Feb-2008 |
12 pages |
| Authors:
D M Grosso; MARINE CORPS COMMAND AND STAFF COLL QUANTICO VA
|
| In the Marine Corps, the aviation combat element (ACE) of a Marine Expeditionary Unit (MEU) is designed and built around a single CH-46E squadron. These Sea Knight helicopters and the Marines that maintain and fly them are said to be the backbone of the ACE. When one joins the CH-46E community as a young first lieutenant, he is fed this rhetoric from the moment he steps into the building of ... |
|
| Quantification of the Interacting Physical, Biological, Optical and Chemical Properties of Thin Layers in the Sea |
Jan-2008 |
10 pages |
| Authors:
Margaret A McManus; Mark T Stacey; John P Ryan; HAWAII UNIV AT MANOA HONOLULU DEPT OF OCEANOGRAPHY
|
| Our long-term goal is to develop the capability to predict thin layer formation and presence in the coastal ocean. The central focus of our research is to investigate: the spatial and temporal scales of thin layers, the relationship between physical processes (from the microscale to the mesoscale) and thin layers, as well as the difference between layered structures in the nearshore and offshore environments. The overarching goal of our research ... |
|
Reports by Keyword(s)
SHIPBOARD
