| NATO Undersea Research Centre Marine Mammal Risk Mitigation Rules and Procedures |
Nov-2009 |
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| Authors:
Kendra L Ryan; NATO UNDERSEA RESEARCH CENTRE LA SPEZIA (ITALY)
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 | The NATO Undersea Research Centre (NURC) Marine Mammal Risk Mitigation Rules and Procedures provides the policy and the procedures to scientific planners, Scientists-in-Charge (SID), researchers and the Master of NURC vessels which address potential adverse effects on marine mammals of sea trials involving underwater sound. As a matter of policy, the Centre will take precautionary and preventive measures to circumvent harm to marine mammals from underwater sound by institution of ... |
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| Flying Wing Autonomous Underwater Glider for Basic Research in Ocean Acoustics, Signal/Array Processing, Underwater Autonomous Vehicle Technology, Oceanography, Geophysics, and Marine Biological Studies |
31-Mar-2009 |
4 pages |
| Authors:
Gerald L D'Spain; SCRIPPS INSTITUTION OF OCEANOGRAPHY LA JOLLA CA MARINE PHYSICAL LAB
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 | The objective of this specific project was to design and construct a new generation flying wing underwater glider, dubbed ZRay, based upon the experience developed over the past three years (2006-2008) of at-sea testing with XRay (under ONR grant N00014-04-1-0558). The new design developed during this project includes several innovations that significantly improve a Liberdade glider's persistence, passive sensing capability, and robustness |
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| Dredged Material Analysis Tools; Performance of Acute and Chronic Sediment Toxicity Methods |
APR 2008 |
73 pages |
| Authors:
Jeffery Steevens; Alan Kennedy; Daniel Farrar; Cory McNemar; Mark R. Reiss; Roy K. Kropp; Jon Doi; Todd Bridges; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS ENVIRONMENTAL LAB
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| This report and research were supported by the U.S. Army Corps of Engineers New York District and U.S. Environmental Protection Agency Region 2. The work was conducted to provide insight into the potential advantages and disadvantages of using chrome semi toxicity tests with relevant benthic micro invertebrates as part of dredged material evaluations, as described in the Inland and Ocean Testing Mammals (USEPA/USACE 1991, 1998). Nine sediments collected from the ... |
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| Research in Advanced Surface Effect Ships |
12 FEB 2008 |
26 pages |
| Authors:
Douglas C. Leonard; OCEAN STATE TECHNOLOGY CORP PROVIDENCE RI
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| Research is conducted toward development of high payload-fraction surface craft capable of efficient high-speed (50+ knots) coastal/short sea transport of passengers and cargo; other desired characteristics included shallow draft, steadiness, ease of reconfiguration, shock resistance and survivability in high threat areas. An experimental 42 ft lwl (50 ft oa) air-cushioned, composites constructed, catamaran is designed, built and tested to serve as a demonstrator and test bed for proprietary technology that ... |
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| Acoustic Doppler Current Profiler (ADCP) Velocity Verification Experiments in the Navy's Large Cavitation Channel (LCC) |
DEC 2007 |
38 pages |
| Authors:
Dylan A. Chirchella; NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD
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| The Resistance and Powering Division (Code 5200) of The Naval Surface Warfare Center, Carderock Division (NSWCCD) conducted verification experiments on a 20 degree Acoustic Doppler Current Profiler (ADCP) unit produced by RD Instruments (RDI) of San Diego, California. These experiments were conducted in the Navy's Large Cavitation Channel (LCC) located in Memphis, Tennessee. Although they have many other possible future uses, currently the ADCP units tested during this series are ... |
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| Joint High Speed Vessel (JHSV) Program |
23-May-2007 |
27 pages |
| Authors:
JOINT HIGH SPEED VESSEL PROGRAM WASHINGTON DC
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| This briefing presents an overview of the Joint High Speed Vessel (JHSV) Program and discusses the challenges in executing the program |
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| Progress Report on Advanced Detection and Classification Algorithms for Acoustic-Color-Based Sonar Systems |
29 NOV 2006 |
15 pages |
| Authors:
Lawrence Carin; Nilanjan Dasgupta; Steven Haron; SIGNAL INNOVATIONS GROUP INC DURHAM NC
|
| This report summarizes recent progress by Signal Innovations Group (SIG) in supporting the Naval Research Laboratory (NRL) on development of a new low-frequency sonar system. SIG has the tasks of developing the algorithms and transitioning them to NRL, for use in sea tests. The discussion below provides a summary of the following items: (i) a kernel-based matching pursuits classification algorithm, (ii) life-long learning, (iii) in situ learning, and (iv) a ... |
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| Underwater Intruder Detection Sonar for Harbour Protection: State of the Art Review and Implications |
OCT 2006 |
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| Authors:
Ronald T. Kessel; Reginald D. Hollett; NATO UNDERSEA RESEARCH CENTRE LA SPEZIA (ITALY)
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| Sonar is the sensor of choice for wide-area underwater surveillance because sonar (based on sound waves) typically provides a much larger area of coverage than radar (electromagnetic waves) or video (visible light) can provide under water. Of particular interest of late is sonar for detecting and tracking underwater intruders in harbours, to provide an element of protection for ships, harbour infrastructure, nuclear power plants, and so forth, against terrorist attacks ... |
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| Results from a Small Synthetic Aperture Sonar |
Sep-2006 |
7 pages |
| Authors:
Daniel Brown; Daniel Cook; Jose Fernandez; NAVAL SURFACE WARFARE CENTER PANAMA CITY FL
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| A Synthetic Aperture Sonar (SAS) is capable of producing range-independent high-resolution imagery from an array that is small in length. The ability of these systems to operate at lower frequencies while maintaining high resolution has made them useful for mapping and searching large areas. The U.S. Navy through the Office of Naval Research has a history of developing SAS systems for mine hunting. Recently, their attention has turned to these ... |
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| Shipbuilding Integration |
DEC 2005 |
69 pages |
| Authors:
Joanna M. Carter; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
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| The build cycle of a first-in-class combat ship takes about 6 years. During that time frame, systems are being designed, installed, and tested, but until the ship is in the water and tested at sea trials it is not known if the ship is fully integrated and will actually perform as it should. As time progresses integration problems become harder and more expensive to solve. Every time a new system ... |
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| Comparison of SWATH and Monohull Vessel Motion for Regional Class Research Vessels |
MAY 2005 |
61 pages |
| Authors:
Curtis A. Collins; James R. Clynch; Thomas A. Rago; NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF OCEANOGRAPHY
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| The attitude characteristics of two small research vessels, a 539-ton monohull (R/V Point Sur) and a 419-ton SWATH (R/V Western Flyer), are compared. The comparison is based upon 134 (61) motion measurements carried out on the R/V Point Sur (Western Flyer) in 2003 and 2004. Measurements were made using a tilt meter and a vertical gyro. When the vessels were on station, root mean square roll on the R/V Point ... |
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| TIAPS "Through the Sensor Probing" Technique |
MAR 2005 |
50 pages |
| Authors:
C. Calnan; XWAVE HALIFAX (NOVA SCOTIA)
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| An earlier contract (Calnan 2004) resulted in the creation of BREVER, a program able to perform reverberation inversion on processed ping data from TIAPS sea trials. The inversion results, which are the geoacoustical properties of the pings' environments, could be used to calculate transmission losses in these environments. This contract was let to perform inversions on a number of pings, calculate transmission losses, and compare the results to those obtained ... |
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| Analytical Chemistry Detection Limits and the Evaluation of Dredged Sediments |
JAN 2005 |
11 pages |
| Authors:
Robert P. Jones; Joan U. Clarke; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS
|
| This technical note presents information clarifying the proper use of analytical chemistry detection limit terminology with respect to the evaluation of dredged material prior to disposal in ocean or inland waters of the United States. This document is intended to support guidance presented in the Inland Testing Manual (USEPA/USACE 1998) and the Ocean Testing Manual (USEPA/USACE 1991). Valuable guidance regarding detection limit terminology can be found in Appendix I of ... |
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| Air Virtual at Sea (VAST) Platform Stimulation Analysis |
JAN 2005 |
22 pages |
| Authors:
BMH ASSOCIATES INC NORFOLK VA
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| Information included in this report is outlined as follows: 1) VAST/ LVC Integration Concept; 2) VAST/LVC Integration Architecture; 3) Demonstration Concept; 4) Schedule and Cost; and 5) Engineering Management Topics. |
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| NEPA After Natural Resources Defense Council V. United States Department of the Navy |
30 JUN 2003 |
30 pages |
| Authors:
Michael M. Bates; CALIFORNIA UNIV BERKELEY SCHOOL OF LAW
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| On September 17, 2002, the latest skirmish in an ongoing battle over the extra-territorial application of the National Environmental Policy Act (NEPA) was fought in the U.S. District Court for the Central District of California, pitting the Natural Resources Defense Council and other environmental groups against the United States Navy. On a day that found both environmentalists and the Department of Justice claiming victory, Judge Christina A. Snyder held that ... |
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| Environmental Characterization for the RDS-4 Experiment in the Halifax Harbor Approaches and Emerald Basin |
14 FEB 2003 |
58 pages |
| Authors:
Robert A. Fisher; Lisa A. Pflug; James K. Fulford; Francine Desharnais; James Milne; NAVAL RESEARCH LAB STENNIS SPACE CENTER MS
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| The RDS-4 sea trial is the fourth in a series of trials sponsored by TTCP MAR TP-9 on the topic of Rapidly Deployable Systems. These trials are meant to study innovative designs of a new generation of economical, lightweight, and rapidly deployable sonar systems. The RDS-4 trial is scheduled for September/ October 2002, and will take place in the approaches of Halifax Harbor and Emerald Basin (Scotian Shelf). This report ... |
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| DEFENSE ACQUISITIONS: Testing Needed to Prove SURTASS/LFA Effectiveness in Littoral Waters |
JUN 2002 |
19 pages |
| Authors:
GENERAL ACCOUNTING OFFICE WASHINGTON DC
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| For decades, the Navy has been striving to improve its ability to detect potential enemy submarines before they can get within effective weapons range of U.S. forces. In 1985, the Navy established the Surveillance Towed Array Sensor System (SURTASS) Low Frequency Active (LFA) sonar program to develop a long-range capability for detecting a new generation of quieter Soviet nuclear and diesel submarines operating principally in the open ocean. Since the ... |
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| Testing a New Concept of Immersion Suit at Sea |
APR 2002 |
|
| Authors:
Michel B. Ducharme; DEFENCE AND CIVIL INST OF ENVIRONMENTALMEDICINE DOWNSVIEW (ONTARIO)
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| A new concept of immersion suit, the nearly dry suit, was recently developed to overcome the main limitations of the wet and dry suits. The main new feature of the suit is the adjustable seals that can be closed before or upon entry in water. The purpose of the present study was to test the new suit at sea against a standard dry suit. Seven male subjects were immersed for ... |
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| Stern Flap Performance on 110 ft Patrol Boat WPB1345 STATEN ISLAND |
JAN 2002 |
35 pages |
| Authors:
Dominic S. Cussanelli; Christopher D. Barry; NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD
|
| The WPB1345 STATEN ISLAND was selected as a test ship for a full- scale at-sea evaluation of a stem flap design for the U.S. Coast Guard ISLAND class (110 WPB) patrol boats. A baseline (pre-flap) speed trial was conducted. A stem flap was then installed, and a comparative post-flap speed trial was conducted. Adjustments were made to the data to account for differences in the loading conditions experienced during the ... |
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| Simulation of an Orthogonal Frequency Division Multiplexing Based Underwater Communication System Using a Physics Based Model for the Underwater Acoustic Sound Channel |
SEP 2001 |
209 pages |
| Authors:
Gell T. Pittman III; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| The primary thrust of this thesis is the development of a computer- based simulation of an Orthogonal Frequency Division Multipexing (OFDM) based underwater acoustic communication system. The product will support the testing and evaluation of various digital signal processing algorithms applicable to underwater acoustic communication systems using OFDM as well as the study of the effects of the acoustic channel and communication system factors on the key parameters of the ... |
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| As Assessment of Slice Ship Control System Performance |
JUL 2001 |
98 pages |
| Authors:
Ronald E. LaFleur; Robert J. Jastremski; MYSTIC INNOVATIONS GROUP INC CT
|
| This report summarizes the effort to review existing documentation and at-sea test results and assess performance of the SLICE ship control system. At-sea data taken by NSWC-Carderock, Lockheed Martin and documentation provided by Lockheed Martin provided the baseline information to conduct the assessment. The assessment focused on the SLICE ship control hardware and software including: the control surfaces; actuation system; motion sensors; control computer and control algorithms. Seakeeping performance improvement ... |
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| Electronic Chart Display and Information System - Navy: Analysis and Recommendations |
JUN 2001 |
84 pages |
| Authors:
Edward J. Schweighardt; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| In 1998 the Chief of Naval Operations directed the U.S. Navy to begin a transition from navigating using conventional paper charts, to the use of an electronic charting system (digital charts). In response, the Electronic Chart Display and Information Systems-Navy (ECDIS-N) instruction was issued. This new technology will presumably reduce or prevent future collision and grounding incidents associated with navigational errors. The objective of this study is to determine the ... |
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| Coordinate Usage in the Virtual Ship Architecture Issue 1.00 |
OCT 2000 |
|
| Authors:
John P. Best; DEFENCE SCIENCE AND TECHNOLOGY ORGANISATION MELBOURNE (AUSTRALIA)
|
| This document describes the coordinate systems used within the Virtual Ship Architecture (VSA) and defines object attributes that convey kinematic information. |
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| Development of a Ship Service Fuel Cell |
OCT 2000 |
7 pages |
| Authors:
S. Abens; H. Ghezel-Ayagh; G. Steinfeld; R. Sanderson; M. Cervi; FUELCELL ENERGY INC DANBURY CT
|
| Under a three-phase program sponsored by the Office of Naval Research (ONR), FuelCell Energy, Inc. is developing a 2.5 MW fuel cell power plant for ship service power generation aboard surface combatants. During the first phase, the conceptual design of the ship service fuel cell (SSFC) module was developed and critical component tests were performed. The second phase which was initiated in June 2000, will provide detailed design, construction, and ... |
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| USCGC HEALY (WAGB 20) Results of Performance and Special Trials |
SEP 2000 |
83 pages |
| Authors:
George H. Brodie; Lowry L. Hundley; Steven C. Intolubbe; NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD
|
| Performance and Special Trials consisting of standardization, fuel performance, tactical, and maneuvering trials were conducted on USCGC HEALY (WAGB 20) during builder's sea trials to evaluate the hydrodynamic performance of the ship, The trials were conducted in the Gulf of Mexico off the coast of Louisiana from 23 through 31 August 1999. Standardization and fuel performance trials results showed that HEALY achieved the maximum powering ... |
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| Automated Meteorological and Oceanographic Data Collection and Distribution in Support of C4I, Weapons, and Remote Sensing Systems |
SEP 2000 |
92 pages |
| Authors:
William H. Nisley Ii; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| On-scene characterization of the battlespace environment is critical toward providing the warfighter with an effective understanding of the environment and its impact on weapon systems and sensors and requires the rapid acquisition and dissemination of on-scene meteorological and oceanographic (METOC) measurements. The current practice of manually observing and recording METOC data is labor intensive, outdated, and no longer capable of satisfying the requirements for higher temporal and spatial observations. This ... |
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| Development of Marine Sediment Toxicity Data for Ordnance Compounds and Toxicity Identification Evaluation Studies at Select Naval Facilities |
AUG 2000 |
194 pages |
| Authors:
R. Scott Carr; Marion Nipper; TEXAS A AND M UNIV CORPUS CHRISTI TX CENTER FOR COASTAL STUDIES
|
| To assess the potential impact of contamination by ordnance compounds and their contribution to environmental degradation in two areas of Puget Sound, Washington, an extensive study was undertaken. It included the generation of a toxicity database of ordnance compounds to marine organisms, and sediment toxicity and chemical analyses of 50 stations in the vicinity of the Jackson Park and Port Hadlock naval facilities, Puget Sound, including Toxicity ... |
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| TEASG Step 3 Report on APB Step 3 Test, Evaluation, and Analysis Process |
APR 2000 |
13 pages |
| Authors:
Michael Beasley; David Colella; Ronald Fico; W. R. Lane; Gregory C. Rice; Michael K. Seil; MITRE CORP MCLEAN VA WASHINGTON C3I DIV
|
| A subcommittee of the Test, Evaluation, and Assessment Support Group was formed to address issues and procedures relating to the Advanced Processor Build Step 3 test and analysis procedures. This examination was prompted by the recent APB-99 Step 4 test, wherein a number of system deficiencies were noted with little or no perceived forewarning from the APB-99 Step 3 evaluation. This report discusses the subcommittee's assessment of the overall Step ... |
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| Results of Experiments With a Segmented Model to Investigate the Distribution of the Hydrodynamic Forces and Moments on a Streamlined Body of Revolution at an Angle of Attack or With a Pit |
FEB 2000 |
49 pages |
| Authors:
Eric F. Van Randwijck; Jerome P. Feldman; NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD HYDROMECHANICS DIRECTORATE
|
| The hydrodynamic forces and moments which are developed on unappended streamlined bodies of revolution at small and large angles of attack or with a pitching angular velocity were investigated by captive-model experiments and by theory. The captive-model experiments were performed with a segmented model of a Series 58 body in the deep water basin of the David Taylor Model Basin and on the rotating arm. Exact and ... |
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| DIINS - The Next Generation CPF Navigation System - An Overview |
NOV 1999 |
|
| Authors:
J. S. Bird; DEFENCE RESEARCH ESTABLISHMENT OTTAWA (ONTARIO)
|
| The Canadian Navy has been developing a highly fault tolerant, integrated navigation system for its dual INS equipped frigates for a number of years. The system, called DIINS (Dual Inertial Integrated Navigation System), is now in the final stages of sea trials before being prepared for installation on the vessels. This report provides a high level overview of the system. |
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| Tactical Testing of the Juniper Class Seagoing Buoy Tender |
JUL 1999 |
95 pages |
| Authors:
Robert C. Desruisseau; COAST GUARD RESEARCH AND DEVELOPMENT CENTER GROTON CT
|
| Tactical testing for the new 225-foot Juniper Class of Coast Guard Seagoing Buoy Tenders was conducted on June 9, 1998, and the preliminary results were forwarded to the sponsor in September 1998. The testing was conducted on the USCGC JUNIPER (WLB-201), the first ship of the class. The tests consisted of turning circles, acceleration to full speed from a standing stop, and deceleration from full speed. The turning circle tests ... |
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| Sonar Dome Deflection Measurements on the USS RADFORD |
02 JUN 1999 |
285 pages |
| Authors:
Jeol F. Covey; Robert D. Corsaro; Diane B. Weaver; Jonathan B. Walker; NAVAL RESEARCH LAB WASHINGTON DC PHYSICAL ACOUSTICS BRANCH
|
| Sonar dome deflection measurements were performed on the new monolithic sonar dome of the USS RADFORD in Oct. - Dec. 1997. Over 700 Mbytes ofraw data from 22 environmental sensors and 128 displacement sensors were obtained. The at-sea data acquisition was highly successful with data collected over sea states 1 through 4, and for numerous ship speeds up to 31 knots. The analysis of this data has provided a more ... |
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| Rapid Geoacoustics Inversion Methods Used in LWAD98-2-Sea Test |
12 APR 1999 |
|
| Authors:
Altan Turgut; OFFICE OF NAVAL RESEARCH ARLINGTON VA
|
| A concept for rapid environmental characterization of the sea bottom/ subbottom has been successfully tested during the LWAD98-2 seatest. As a proof- of-concept test, inversion of statistical parameters of a Jackson/Turgut bottom/ subbottom scattering model from backscatter data is performed. Seabed geoacoustic properties are also inverted from normal-incidence acoustic data. Results are in agreement with the previously reported geoacoustic data for the area. Iterative time-reversal techniques were also used to ... |
|
| The Magnetic Dipole Moment of RV Alliance |
FEB 1999 |
34 pages |
| Authors:
J. Watermann; SACLANT UNDERSEA RESEARCH CENTRE LA SPEZIA (ITALY)
|
| A SACLANTCEN magnetometry sea trial was performed in September 1998 in the northern Tyrrhenian Sea in the vicinity of the Formiche di Grosseto islands. One of the trial objectives concerned the measurement of the magnetic dipole moment of the NATO research vessel Alliance with an array of fixed Ocean Bottom Magnetometers. The Alliance sailed with constant velocity along three specified tracks in reciprocating directions. The ... |
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| Fluoroelastomer Fouling Release Coating |
19 AUG 1998 |
11 pages |
| Authors:
Aslam A. Malik; GENCORP INC SACRAMENTO CA AEROJET DIV
|
| Our goal is to develop novel fluoroelastomers that exhibit fouling release capabilities and to understand the polymer characteristics that influence the adhesion of biofouling organisms to polymeric substrates. We will develop novel fluoroelastomers that are characterized by low glass transition temperature and the ability to form stable, low surface energy coatings with high abrasion resistance and excellent adhesion to substrates. We will study the physical, ... |
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| Comparison of Evaporation Duct Height Measurement Methods and Their Impact on Radar Propagation Estimates |
MAR 1998 |
75 pages |
| Authors:
John D. Whalen; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| A study was performed to compare shipboard measurements of atmospheric parameters that impact the evaporation duct and its effect on the propagation of electromagnetic energy from the AEGIS AN/SPY-1 radars. Two ships, USS ANZIO and USS CAPE ST GEORGE, participated in the annual NATO exercise, BALTOPS, during the summer of 1997. They were equipped with an automated METOC sensor system, developed by John Hopkins University Applied Physics Laboratory, called SEAWASP. ... |
|
| Electronic Navigational Chart (ENC) Updating Study: Final Report |
JAN 1998 |
252 pages |
| Authors:
Irene M. Gonin; COAST GUARD RESEARCH AND DEVELOPMENT CENTER GROTON CT
|
| This report summarizes the work performed by the USCG Research and Development Center from 1994 to 1997 in the area of electronic chart updating. The first objective of this effort was to determine the impact of electronic navigational chart updating on the U. S. Coast Guard infrastructure that provides paper chart corrections. The second objective was to examine and suggest modifications to three international standards ... |
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| User Modeling and Information Presentation for Naval Tactical Picture Agents |
DEC 97 |
5 pages |
| Authors:
Bruce W. Hamill; John R. Gersh; JOHNS HOPKINS UNIV LAUREL MD APPLIED PHYSICS LAB
|
| The scientific tasks that were to be performed in this research project comprised a set of observational studies and a series of experiments. During the first year, observational studies were to focus on experienced naval tactical decision makers at sea and in the laboratory. We planned to make observations in conjunction with the at-sea evaluation of The Johns Hopkins University Applied Physics Laboratory's (JHU/APL) continuing series of operational prototypes for ... |
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| Autonomous Bathymetric Surveying |
SEP 1997 |
13 pages |
| Authors:
Brian Bourgeois; M. Harris; Pete Alleman; Jaml Cheramie; John Gravley; NAVAL RESEARCH LAB STENNIS SPACE CENTER MS ADVANCED SENSOR AND SURVEY SECTION
|
| This paper discusses an initial implementation of sensor performance based survey control using a multi-beam bathymetric system. The goal of this work is the automation of survey navigation and sensor control utilizing actual vice predicted response of the survey system. The implementation of the techniques discussed in this paper utilized the Naval Research Laboratory's ORCA vessel, a semiautonomous air breathing submersible vessel. The approaches attempted are discussed and results from ... |
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| Flight Demonstration of the AltAir Air Deployed Ballistic Missile Target |
18 JUL 97 |
14 pages |
| Authors:
J. Snyder; J. Mentek; F. Shanta; J. Bridges; NATIONAL AIR INTELLIGENCE CENTER WRIGHT-PATTERSON AFB OH
|
| Theater Missile Defense (TMD) testing identified the need for a new type of TMD target system. The system must provide intercept geometries which are difficult to achieve with current ground launch systems. The government undertook the development of the Alternate Air launched short range target (AltAir) to demonstrate the feasibility of meeting these requirements with an air-launched system. The objective of this effort was to develop a target system which ... |
|
| Vertical Source Array Experiment |
JUL 97 |
5 pages |
| Authors:
William S. Hodgkiss; SCRIPPS INSTITUTION OF OCEANOGRAPHY LA JOLLA CA MARINE PHYSICAL LAB
|
| Vertical source array hardware was prepared then taken to sea in a shallow water, active surveillance experiment in April 1996. |
|
| Conceptual Study of Articulated Stable Ocean Platform. Part 2. Volume 4 |
06 MAY 97 |
400 pages |
| Authors:
Trevor R. Mills; Zhihuang Ran; MCDERMOTT ENGINEERING HOUSTON LLC TX
|
| A conceptual study has been completed to evaluate the feasibility of a new concept of a floating storage platform - the Articulated Stable Ocean Platform (ASOP). The unique aspects of the ASOP is the articulation of the stabilize buoys which were introduced for the purposes of reducing wave load and overall vessel motion. The ASOP was designed to have a fuel storage capability of 1 million barrels and to support ... |
|
| Conceptual Study of Articulated Stable Ocean Platform. Part 2. Volume 1 |
06 MAY 97 |
320 pages |
| Authors:
Trevor R. Mills; Zhihuang Ran; MCDERMOTT ENGINEERING HOUSTON LLC TX
|
| A conceptual study has been completed to evaluate the feasibility of a new concept of a floating storage platform - the Articulated Stable Ocean Platform (ASOP). The unique aspects of the ASOP is the articulation of the stabilize buoys which were introduced for the purposes of reducing wave load and overall vessel motion. The ASOP was designed to have a fuel storage capability of 1 million barrels and to support ... |
|
| Bottom Scattering Strengths Measured Using Explosive Sources in the Critical Sea Test Program |
05 FEB 97 |
71 pages |
| Authors:
Peter M. Ogden; Fred T. Erskine; NAVAL RESEARCH LAB WASHINGTON DC ACOUSTICS SYSTEMS BRANCH
|
| Bottom backscattering strengths were measured in the Critical Sea Test (CST) program at many sites using explosive charges as sources and a horizontal line array as a receiver. This report is a catalog, with minimal analysis, of the values measured at each site. Scattering strengths were obtained for frequencies from 70 to 1300 Hz and at grazing angles from 23 to 30 deg (intermediate angles). For each site where a ... |
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| Evaluation of a Laboratory Automatic Target Recognition system: Air-to- Sea Image Sequence |
FEB 1997 |
|
| Authors:
Paul Miller; Peter Virgo; Mike Royce; Steve Angeli; DEFENCE SCIENCE AND TECHNOLOGY ORGANIZATION CANBERRA (AUSTRALIA)
|
| The operation and evaluation of a laboratory automatic target recognition (ATR) system is described. The ATR system was evaluated against its ability to acquire and track a specific target in the presence of false targets and background clutter. A ten second air-to-sea image sequence that contained the infrared signatures of three ship targets and sea clutter was used as the test sequence. The evaluation involved assessing the system performance with ... |
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| Shallow Water Propagation Comparisons with a SWAC-1 Data Set |
31 DEC 96 |
53 pages |
| Authors:
Brian Gardner; Emily McCarthy; Jamie Pupek; Robert Gindhart; JOHNS HOPKINS UNIV LAUREL MD APPLIED PHYSICS LAB
|
| In 1994, during the end of October and the beginning of November, the first Shallow Water Active Classification (SWAC-1) sea trial took place in the Malta Channel region of the Mediterranean. One of the experiments used SUS sources and sonobuoy receivers to measure very shallow propagation effects. A limited data set is presented with a propagation prediction study using a number of models. |
|
| Electronic Chart Display and Information System (ECDIS) Test and Evaluation, Summary Report |
DEC 96 |
41 pages |
| Authors:
Irene M. Gonin; Marylouise K. Dowd; Lee Alexander; COAST GUARD RESEARCH AND DEVELOPMENT CENTER GROTON CT
|
| This summary report describes four sea trials and one man-in-the-loop simulator experiment conducted by the U.S. Coast Guard Research and Development Center from 1990 to 1993 thoroughly test and evaluate the adequacy of the International Maritime Organization's Performance Standard for ECDIS. Issues examined include: the contribution to safety of navigation, the effects of the navigation workload, features and functions required during route monitoring, and the contribution of integration with radar. ... |
|
| Portable Emissions Testing of a 105-FT Commercial Tug |
OCT 96 |
92 pages |
| Authors:
Alan Bentz; Bert Macesker; Robert Desruisseau; COAST GUARD WASHINGTON DC OFFICE OF RESEARCH AND DEVELOPMENT
|
| Emission testing was conducted in May 1996 on a commercial tug as part of a general Coast Guard R&D study to evaluate protocols for shipboard emissions testing. The objectives of this test were to determine emissions data for a commercial tug, evaluate fuel savings techniques, and evaluate portable testing protocols for emissions testing. Portable emission analyzers were used that employ electrochemical sensors. The NOx values determined were below both the ... |
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| Reassessing the Issue of Pulse-Length Dependence of Bottom Scattering Strengths in Critical Sea Test Data |
SEP 96 |
52 pages |
| Authors:
Roger C. Gauss; Joseph M. Fialkowski; Frank S. Henyey; Peter M. Ogden; Sean M. Reilly; SPACE AND NAVAL WARFARE SYSTEMS COMMAND WASHINGTON DC
|
| During the course of the Critical Sea Test (CST) program, a substantial number of measurements have been made of low frequency, direct path bottom scattering using both SUS charges and controlled waveforms. An unexpected pulselength dependence (PLD) of low frequency, bottom scattering strengths (BSS) was reported to have been observed in some coherent source data collected in several CST-5 and CST-7 Phase-3 locations. This dependence was basically independent of grazing ... |
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| Impact of CST on Navy Programs. The CST Process for Technology Transition and Programmatic Change |
SEP 96 |
26 pages |
| Authors:
D. A. Backes; SPACE AND NAVAL WARFARE SYSTEMS COMMAND WASHINGTON DC
|
| Since 1985 the Navy has conducted focused Advanced Technology Demonstration (ATD) programs to introduce Low Frequency Active Acoustics (LFAA) technology into the Fleet to improve antisubmarine warfare (ASW) capability against the quiet submarine threat. The Critical Sea Test (CST) Project tested LFAA and related technologies at sea in CST-Magellan tests, both independently and in combination with tests sponsored by the Surveillance Towed Array Sensor System (SURTASS) Low Frequency Active (LFA) ... |
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Reports by Keyword(s)
SEA TESTING
