| Performance Analysis of a Link-16/JTIDS Compatible Waveform With Noncoherent Detection, Diversity and Side Information |
Sep-2009 |
70 pages |
| Authors:
Ioannis Kagioglidis; NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
|
 | The Joint Tactical Information Distribution System (JTIDS) is a hybrid frequency-hopped, direct sequence spread spectrum system. A (31, 15) Reed-Solomon (RS) code is used for forward error correction coding, and cyclical code-shift keying (CCSK) M-ary modulation is used, where each encoded symbol represents five bits. In this thesis, a compatible waveform consistent with the existing JTIDS channel waveform is analyzed. The system considered uses the same (31, 15) RS encoding ... |
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| An Evaluation of Growth Models as Predictive Tools for Estimates at Completion (EAC) |
Mar-2009 |
80 pages |
| Authors:
Elizabeth N Trahan; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT
|
| Efficient decision making mandates the accuracy of forecasted estimations of a contract's final value known within Earned Value Management (EVM) as the Estimates at Completion (EAC). Our research evaluates the prospect of nonlinear growth modeling as an alternative to the current predictive tools used for calculating EAC, such as the Cost Performance Index (CPI), the Schedule Cost Index (SCI), and the Composite Index methods. Our study uses the Gompertz growth ... |
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| Using Agent-Based Modeling to Evaluate UAS Behaviors in a Target-Rich Environment |
Mar-2009 |
93 pages |
| Authors:
van; Joseph A Kuiken; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING
|
| The trade-off between accuracy and speed is a re-occurring dilemma in many facets of military performance evaluation. This is an especially important issue in the world of ISR. One of the most progressive areas of ISR capabilities has been the utilization of Unmanned Aircraft Systems (UAS). Many people believe that the future of UAS lies in smaller vehicles flying in swarms. We use the agent-based System Effectiveness and Analysis Simulation ... |
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| Wireless Network Cocast: Location-Aware Cooperative Communications with Linear Network Coding |
Jan-2009 |
29 pages |
| Authors:
Hung-Quoc Lai; K J Liu; Ahmed S Ray Ibrahim; ARMY COMMUNICATIONS-ELECTRONICS RESEARCH DEVELOPMENT AND ENG CTR FT MONMOUTH NJ
|
| In wireless networks, reducing aggregate transmit power and in many cases, having even power distribution increase the network lifetime. Conventional direct transmission (DTX) scheme results in high aggregate transmit power and uneven power distribution. In this paper, we consider location-aware cooperation-based schemes namely immediate-neighbor cooperation (INC), maximal cooperation (MAX), and wireless network cocast (WNC) that achieve spatial diversity to reduce aggregate transmit power and even power distribution. INC utilizes two-user ... |
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| Diver Visibility: Why One Can Not See as Far? |
Jan-2009 |
8 pages |
| Authors:
Weilin Hou; Alan D Weidemann; NAVAL RESEARCH LAB STENNIS SPACE CENTER MS OCEANOGRAPHY DIV
|
| Diver visibility has been one of the key research areas in underwater vision and imaging studies. Its applications also extend into imaging system performance evaluation and prediction, which is important in MIW and ASW operations. These applications are often associated with coastal ocean waters, and this is generally translated directly into turbidity of the water column. While mostly this is the case, exceptions can lead to erroneous predictions and potentially ... |
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| Performance Analysis of Alternative Link-16/JTIDS Compatible Waveforms with Complex 64-Bi-Orthogonal-Keyed Modulation |
Dec-2008 |
139 pages |
| Authors:
Cheng H Kee; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| The Joint Tactical Information Distribution System (JTIDS)/Link-16 is a hybrid frequency-hopped, direct sequence spread spectrum system which is used for the exchange of real-time tactical data. The five-bit data symbols are encoded with a (31,15) Reed-Solomon (RS) code and transmitted over the channel with cyclical code-shift keying modulation. Although JTIDS/Link-16 has proven to be operationally useful, one of its primary drawbacks is its limited data rate. This thesis focuses on ... |
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| Performance Analysis of an Alternative Link-16/JTIDS Waveform Transmitted Over a Channel with Pulse-Noise Interference |
Dec-2008 |
66 pages |
| Authors:
Ho K Wei; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| The Joint Tactical Information Distribution System (JTIDS) is a hybrid frequency-hopped direct sequence spread spectrum system that utilizes a (31, 15) Reed- Solomon (RS) code and cyclical code-shift keying modulation for the data packets, where each encoded symbol consists of five bits. The primary drawback to JTIDS is the limited data rate. In this thesis, an alternative waveform consistent with the existing JTIDS waveform but with twice the data rate ... |
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| Performance Evaluation Test of the Rapid Area Preparation Tool (RAPTOR) |
Dec-2008 |
|
| Authors:
INSTITUTE FOR DEFENSE ANALYSES ALEXANDRIA VA
|
 | The purpose of this test is to assess the performance of the Rapid Area Preparation Tool (RAPTOR). The RAPTOR is designed to address some of the vegetation-clearing, soil preparation, and mine removal and neutralization problems associated with humanitarian demining. The test was conducted in two segments. In the first, vegetation-clearing testing was conducted at Test Site A in October 2007. Soil preparation testing with in-ground tools was also begun at ... |
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| Performance Analysis of a JTIDS/Link-16-type Waveform Transmitted over Slow, Flat Nakagami Fading Channels in the Presence of Narrowband Interference |
Dec-2008 |
208 pages |
| Authors:
Chi-Han Kao; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| Link-16 is a tactical data link. It provides presumably secure and jam-resistant tactical information for land, sea, and air platforms. The communication terminal of Link-16 is called Joint Tactical Information Distribution System (JTIDS) and features Reed-Solomon (RS) coding, symbol interleaving, cyclic code-shift keying (CCSK) for M-ary symbol modulation, minimum-shift keying (MSK) for chip modulation, and combined frequency-hopping and direct sequence spread spectrum for transmission security. In this dissertation, the performance ... |
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| Collaborative Tool for Command and Control Team Effectiveness Studies: Experimental Test of Interventions to Improve Performance in Command and Control |
Nov-2008 |
20 pages |
| Authors:
Chad Tossell; AIR FORCE ACADEMY COLORADO SPRINGS CO INST FOR INFORMATION TECHNOLOGY APPLICATIONS
|
| The Air and Space Operations Center (AOC) is the most complex weapons system in the United States Air Force (USAF) inventory (Garrity, Morley, Rodriguez, & Tossell, 2004). It is important for potential AOC operators to receive proper training in order to effectively accomplish the mission. This study had two goals. The first was to determine if an inexpensive, low fidelity strategy game, such as Airstrike, could be used to provide ... |
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| Noncommissioned Officer Education System (NCOES): Considerations for Testing-out and Awarding Equivalent Credit |
Nov-2008 |
61 pages |
| Authors:
Richard L Wampler; Paul N Blankenbeckler; NORTHROP GRUMMAN CORP COLUMBUS GA
|
| This research examined the viability of allowing noncommissioned officers (NCOs) to receive NCO Education System (NCOES) credit based on experience or testing-out. Surveys and interviews were completed with 164 participants, varying in rank from Lieutenant Colonel to Staff Sergeant. Participants were serving in duty positions ranging from U.S. Army Training and Doctrine Command School Leaders and staff to actual NCO and Officer course instructors, at six Army installations representing 11 ... |
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| An Assessment of the Effectiveness of Computer-based Training for Newly Commissioned Surface Warfare Division Officers |
23-Oct-2008 |
120 pages |
| Authors:
Carol Stoker; Stephen Mehay; William R Bowman; Alice M Crawford; Robert Paynter; NAVAL POSTGRADUATE SCHOOL MONTEREY CA GRADUATE SCHOOL OF BUSINESS AND PUBLIC POLICY
|
| The goal of this study was to analyze the effectiveness of the new SWOS-at-Sea training for newly commissioned surface warfare officers that was introduced in 2003. The new regime combined self-paced computer-based training (CBT) with on-the-job training (OJT) on-board an officer's ship. The study relied on a variety of analytical techniques, including a literature review of CBT and OJT training, interviews and focus groups with junior and senior surface warfare ... |
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| Determination of Optimum Vitamin D Nutrition in Young Women |
Oct-2008 |
6 pages |
| Authors:
John C Gallagher; CREIGHTON UNIV OMAHA NE
|
| The main objective of the current proposal is to study the effect of increasing doses of vitamin D3 in a group of young women with hypovitaminosis D (serum 25OHD 20 ng/ml) and an adequate calcium intake of 1200 -1400mg/day. This is a double blind randomized placebo controlled study .There will be 5 treatment arms, four vitamin D3 dose groups ,400, 800, 1600, and 2400 IU/day and placebo .Calcium citrate tablets ... |
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| Performance Analysis of a Link-16/JTIDS Compatible Waveform Transmitted Over a Channel with Pulse-Noise Interference |
01-Sep-2008 |
110 pages |
| Authors:
Dimitrios Lekkakos; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| The Joint Tactical Information Distribution System (JTIDS) is a hybrid frequency-hoped, direct sequence spread spectrum system that utilizes a (31, 15) Reed-Solomon (RS) code and cyclical code-shift keying (CCSK) modulation for the data packets, where each encoded symbol consists of five bits. In this thesis, an alternative waveform consistent with the existing JTIDS channel waveform is analyzed. The system to be considered uses (31, 15) RS encoding as the original ... |
|
| Test Operations Procedure (TOP) 2-2-540 Testing of Unmanned Ground Vehicle (UGV) Systems |
30 JUN 2008 |
39 pages |
| Authors:
ABERDEEN TEST CENTER MD
|
| This TOP describes a systematic approach to safety and performance testing of Unmanned Ground Vehicles (UGVs). The objective is to ensure that the design of each UGV includes positive measures to enhance system safety, and that hazards which could reduce system safety are eliminated or controlled to an acceptable level of risk. |
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| UMCE-FM: Untethered Motion Capture Evaluation for Flightline Maintenance Support |
01-Jun-2008 |
42 pages |
| Authors:
PENNSYLVANIA UNIV PHILADELPHIA CENTER FOR HUMAN MODELING AND SIMULATION
|
| The purpose of this research was to explore and evaluate the utility of novel motion capture technologies within the Air Force maintenance domain. The primary objective was to determine the potential of untethered motion capture capabilities for real-time human subject motion capture and performance data collection with full-scale physical props. The second objective was to evaluate data collected during maintenance task performance validation for the purpose of instruction generation and ... |
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| Screening Air Traffic Control Specialists for Psychopathology Using the Minnesota Multiphasic Personality Inventory-2 |
JUN 2008 |
20 pages |
| Authors:
Raymond E. King; David J. Schroeder; Carol A. Manning; Paul D. Retzlaff; Clara A. Williams; FEDERAL AVIATION ADMINISTRATION OKLAHOMA CITY OK CIVIL AEROSPACE MEDICAL INST
|
| The purpose of this paper is to model and document the use of the Minnesota Multiphasic Personality Inventory-2 (MMPI-2) as a psychological screening tool for conditionally selected FAA Air Traffic Control Specialists (ATCSs). A sample of 1,014 ATCSs in training voluntarily completed the MMPI-2 as part of a research program. Those data are used to estimate the number of future candidates that will be referred for follow-up psychological evaluations, given ... |
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| Monitoring the Performance of IWS Processes in an Open Architecture Environment |
MAR 2008 |
115 pages |
| Authors:
Alexander L. Simmons; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| This thesis focuses on a trial implementation of Knowledge Value Added (KVA) software supporting the management of an Open Architecture (OA) process performance monitoring analysis. During this research Maritime Domain Awareness (MDA) business processes establish the baseline Return On Investment (ROI) analysis. Trial implementation of KVA software tools focus on the assessing and monitoring performance of OA. Installation of KVA software tools are used to support ongoing assessment and performance ... |
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| A New Perspective on Feasibility Determination |
01-Jan-2008 |
9 pages |
| Authors:
Roberto Szechtman; Enver Yucesan; NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF OPERATIONS RESEARCH
|
| We consider the problem of feasibility determination in a stochastic setting. In particular, we wish to determine whether a system belongs to a given set [Gamma] based on a performance measure estimated through Monte Carlo simulation. Our contribution is two-fold: (i) we characterize fractional allocations that are asymptotically optimal; and (ii) we provide an easily implementable algorithm, rooted in stochastic approximation theory, that results in sampling allocations that provably achieve ... |
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| Performance Evaluation Test of the Peco Tracked Brush Blazer |
01-Jan-2008 |
|
| Authors:
INSTITUTE FOR DEFENSE ANALYSES ALEXANDRIA VA
|
| The purpose of this performance evaluation test was to determine the capabilities of the Peco Tracked Brush Blazer TBB-2001, a self-propelled brush cutter, to cut and clear vegetation up to a classification of "difficult" in an efficient and cost-effective manner (in terms of operating and maintenance costs). The model TBB-2001 cutter received one modification prior to being tested. A universal radio-control unit was added by the Army's project engineer to ... |
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| Training for Efficient, Durable, and Flexible Performance in the Military |
JAN 2008 |
35 pages |
| Authors:
Alice F. Healy; Erica L. Wohldmann; James A. Kole; Vivian I. Schneider; Kathleen M. Shea; Jr Bourne Lyle E.; COLORADO UNIV AT BOULDER
|
| To optimize performance in the military, training should be efficient, durable, and flexible. Efficiency is essential because of the high costs of training. Military training also must be durable to ensure long-term retention of the trained knowledge and skills for later success in the field. But durable training will be insufficient if the learned knowledge and skills cannot be applied to situations different from those encountered during training. Because training ... |
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| Performance Evaluation and Army Recruiting |
2008 |
|
| Authors:
James N. Dertouzos; Steven Garber; RAND ARROYO CENTER SANTA MONICA CA
|
| Performance metrics are the standard by which individuals and organizations are judged. Such measures are important to organizations because they motivate individuals and in influence their choices. In the context of Army recruiting, choices made by recruiters can have a major impact on the ability of the Army to meet its goals. Designing and implementing performance metrics that support Army goals requires analysis of how different metrics would affect recruiter ... |
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| Integrated Reconfigurable Aperture, Digital Beam Forming, and Software GPS Receiver for UAV Navigation |
11 DEC 2007 |
20 pages |
| Authors:
Y. T. Morton; MIAMI UNIV OXFORD OH
|
| This report describes progress to date on establishing an integrated aperture, digital beam forming, and software receiver for UAV navigation in interference and jamming environment. Current progress has been made in the following areas: (1) implemented both carrier and code phase tracking loop for performance evaluation of a minimum power beam forming algorithm and null steering algorithm (2) Developed a criterion for interference bandwidth classification (3) implemented a multipath mitigation ... |
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| An Analysis of Three-Channel RSNS Virtual Spacing Direction Finding System |
DEC 2007 |
91 pages |
| Authors:
Kevin Kwai; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| The design and performance analysis of a three-channel Robust Symmetrical Number System (RSNS) virtual spacing direction finding (DF) system was carried out in this thesis. The design was based on hardware used in the previous work in which a digital three-channel RSNS-based interferometer was built. In designing a RSNS virtual spacing DF system it was found that the ratio between the modulus is an important parameter. The ratio affects the ... |
|
| Unreliable Retrial Queues in a Random Environment |
SEP 2007 |
175 pages |
| Authors:
Jr. Cordeiro; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING
|
| This dissertation investigates stability conditions and approximate steady-state performance measures for unreliable, single-server retrial queues operating in a randomly evolving environment. In such systems, arriving customers that find the server busy or failed join a retrial queue from which they attempt to regain access to the server at random intervals. Such models are useful for the performance evaluation of communications and computer networks which are characterized by time-varying arrival, service ... |
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| Feasibility of Developing a Common U.S. Army Helicopter Pilot Candidate Selection System: Analysis of U.S. Air Force Data |
SEP 2007 |
53 pages |
| Authors:
Diane L. Damos; R. B. Gould; DAMOS AVIATION SERVICES INC GURNEE IL
|
| The U.S. Army's aviator candidate pool, unlike the pools for the U.S. Air Force (USAF) and U.S. Navy (USN), includes military enlisted personnel and civilians, many of whom do not have a 4-year college degree. Existing tests, such as the Air Force Officer Qualifying Test (AFOQT), may be too difficult for a substantial subset of Army aviator candidates, failing to produce a sufficient spread of scores at selection points. The ... |
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| Physical Fitness Influences Stress Reactions to Extreme Military Training |
09-Aug-2007 |
8 pages |
| Authors:
Jared P Reis; Marcus K Taylor; Lilianne R Mujica-Parodi; Eric G Potterat; Amanda E Markham; Sean P Drummond; Ganieleah A Padilla; NAVAL HEALTH RESEARCH CENTER SAN DIEGO CA
|
| Physical fitness and physical conditioning have long been valued by the military for their roles in enhancing mission-specific performance and reducing risk of injury in the warfighter. It is not known whether physical fitness plays a causal role in attenuating acute military stress reactions or the evolution of post-traumatic stress disorder. Objective: The objective of this study was to determine whether physical fitness influences the impact of stressful events during ... |
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| Concurrent Validation of Experimental Army Enlisted Personnel Selection and Classification Measures |
AUG 2007 |
294 pages |
| Authors:
Deirdre J. Knapp; Trueman R. Tremble; HUMAN RESOURCES RESEARCH ORGANIZATION ALEXANDRIA VA
|
| New Predictors for Selecting and Assigning Future Force Soldiers (Select21) is concerned with Soldier accession and job classification. The Select21 goal is to ensure the Army acquires Soldiers with the knowledge, skills, and attributes (KSAs) needed for performing well and fitting well in a transformed Army. The objectives of the project are to (a) identify Future Force job demands and the pre-enlistment KSAs required to meet them, (b) develop measures ... |
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| Multistage Security Mechanism For Hybrid, Large-Scale Wireless Sensor Networks |
JUN 2007 |
80 pages |
| Authors:
Grigorios Katsis; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| A wide area network consisting of ballistic missile defense satellites and terrestrial nodes can be viewed as a hybrid, large-scale mobile wireless sensor network. Building on research in the areas of the wireless sensor networks (WSN) and the mobile ad hoc networks (MANET), this thesis proposes an efficient multistage security mechanism for node and data authentication and data confidentiality. Node authentication is provided by digital signatures and the public key ... |
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| Performance Analysis of a Variable Data Rate TCM Waveform Transmitted Over a Channel with AWGN and Pulse-Noise Interference |
JUN 2007 |
121 pages |
| Authors:
Ioannis Katzourakis; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| Trellis-coded modulation (TCM) is a technique where forward error correction coding and modulation are treated in a single operation without increasing the channel bandwidth. In this thesis the performance of a variable data rate TCM waveform transmitted over a channel is investigated. In general, TCM systems with rate 1/2 and rate 2/3 convolutional codes and Quandraface-shift keying (QPSK) and 8-phase-shift keying (PSK) modulation, respectively, are considered for two cases. In ... |
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| Performance Analysis and Comparison of Multiple Routing Protocols in a Large-Area, High-Speed Mobile Node Ad Hoc Network |
JUN 2007 |
139 pages |
| Authors:
Daniel K. Roberts; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT
|
| The U.S. Air Force is interested in developing a standard ad hoc framework using "heavy" aircraft to route data across large regions. The Zone Routing Protocol (ZRP) has the potential to provide seamless large-scale routing for DOD under the Joint Tactical Radio System program. The goal of this study is to determine if there is a difference between routing protocol performance when operating in a large-area MANET with high-speed mobile ... |
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| Incentive Contracts: The Attributes that Matter Most in Driving Favorable Outcomes |
30-Apr-2007 |
40 pages |
| Authors:
Robert L Tremaine; DEFENSE ACQUISITION UNIV FT BELVOIR VA
|
| Incentive contracts have been in place for many years. They represent just one of many contractual tools the Department of Defense has at its disposal to drive certain performance behaviors. Lately, the usefulness of incentive contracts has come into question. The dividends have not been readily apparent. This research study set out to determine what generally afforded strong correlations between incentive-type contracts and expected performance outcomes. Twenty-five weapon system acquisition ... |
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| Surface and 60 FSW Performance Testing of the Modified MBS 2000 Closed Circuit Oxygen Rebreather |
05 MAR 2007 |
59 pages |
| Authors:
David Fothergill; NAVAL SUBMARINE MEDICAL RESEARCH LAB GROTON CT
|
| The primary objective of the current study was to use the lessons learned from the FY05 testing to improve the design and efficiency of the current MBS 2000 unit. Specific design modifications chosen for testing were aimed at improving purge efficiency and reducing the oxygen volume requirements needed to accommodate purges and any leaks of ambient air into the system during a treatment. Since all previous testing had been performed ... |
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| Performance Evaluation of Ad Hoc Routing Protocols in a Swarm of Autonomous Unmanned Aerial Vehicles |
MAR 2007 |
119 pages |
| Authors:
Matthew T. Hyland; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT
|
| This thesis investigates the performance of three mobile ad hoc routing protocols in the context of a swarm of autonomous unmanned aerial vehicles (UAVs). It is proposed that a wireless network of nodes having an average of 5.1774 log n neighbors, where n is the total number of nodes in the network, has a high probability of having no partitions. By decreasing transmission range while ensuring network connectivity, and implementing ... |
|
| Polygraph Use by the Department of Energy: Issues for Congress |
14 FEB 2007 |
|
| Authors:
Alfred Cumming; LIBRARY OF CONGRESS WASHINGTON DC CONGRESSIONAL RESEARCH SERVICE
|
| Four years after the National Academy of Sciences (NAS) questioned the accuracy of polygraph testing, and some members of Congress urged the Department of Energy (DOE) to use the polygraph as a counterintelligence rather than as a general screening tool, DOE on October 30, 2006, eliminated the use of polygraph testing for screening applicants for employment and incumbent employees without specific cause. DOE said its new counterintelligence evaluation regulations are ... |
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| An Evaluation of the Potential Failure Modes for Gaseous Agent Fire Extinguishing Systems Installed within the Protected Space |
FEB 2007 |
64 pages |
| Authors:
G. Back; E. Forssell; M. Boosinger; D. Beene; L. Nash; E. Weaver; COAST GUARD RESEARCH AND DEVELOPMENT CENTER GROTON CT
|
| A full-scale fire performance evaluation was conducted to assist the USCG in developing a position on the practice of installing gaseous agent fire extinguishing system components (i.e., agent cylinders and control valves) within the space they are protecting (i.e., machinery spaces). Testing was carried out to identify the potential failure modes of the system and its components. The evaluation assessed the survivability of a number of halocarbon and inert gas ... |
|
| Instrumenting an All-Terrain Vehicle for Off-Road Mobility Analysis |
JAN 2007 |
56 pages |
| Authors:
Kyle D. Wesson; Michael W. Parker; Barry C. Coutermarsh; Sally A. Shoop; Jesse M. Stanley; ENGINEERING RESEARCH AND DEVELOPMENT CENTER HANOVER NH COLD REGIONS RESEARCH AND ENGINEERING LAB
|
| With small mobile vehicles, even robots, becoming increasingly important for military operations, Cold Regions Research and Engineering Laboratory (CRREL) researchers set out to instrument an all-terrain vehicle (ATV) with mobility sensors to obtain and understand small-vehicle mobility data in all seasons. Extensive mobility research has already been performed at CRREL on the CRREL Instrumented Vehicle (CIV), which collects mobility data with large and expensive vehicle performance sensors. However, a small ... |
|
| Injuries and Injury Prevention in the US Army Band |
30 DEC 2006 |
231 pages |
| Authors:
Joseph J. Knapik; Sarah B. Jones; Doug W. Ohlin; Michelle Canham-Chervak; Salima S. Darakjy; Donald E. Goddard; Keith G. Hauret; Jeffrey A. Hadley; Gregory Twombly; Deanna K. Harkins; ARMY CENTER FOR HEALTH PROMOTION AND PREVENTIVE MEDICINE ABERDEEN PROVING GROUND MD
|
| Injury rates and potential risk factors were examined in the 284 members of the US Army Band in response to a request from the Band Commander. Collected data included 1) information obtained directly from the Band (fitness test scores, height, weight, etc.), 2) medical data from the Defense Medical Surveillance System, 3) audiograms of Band member from the Defense Occupational and Environmental Health Readiness System-Hearing Conservation database, 4) focus group ... |
|
| Performance Analysis of IEEE 802.11g Receivers With Erasure Decoding to Mitigate the Effects of Pulse-Noise Interference |
DEC 2006 |
125 pages |
| Authors:
Georgios Zouros; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| The performance of IEEE 802.11g wireless local area network (WLAN) standard receivers when the signal is transmitted over a frequency-selective, slowly fading Nakagami channel in a pulse-noise interference environment when errors-and-erasures Viterbi decoding is used is examined. The different combinations of modulation (both binary and non-binary) and convolutional code rate specified by the WLAN standard are examined. The performance obtained with errors-and-erasures decoding (EED) is compared with the performance obtained ... |
|
| Water and Sediment Data for Chemical Indicators of Contamination |
DEC 2006 |
25 pages |
| Authors:
Tyler Bowley; Steven Larson; Anthony Bednar; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS ENVIRONMENTAL LAB
|
| INTRODUCTION: This subtask of the Interagency Performance Evaluation Team (IPET) Task 9 project focuses on data mining and compilation for chemical results in four Louisiana parishes affected by flooding from Hurricanes Katrina and Rita Orleans, Plaquemines, St. Bernard, and St. Charles. The compounds of interest are arsenic, lead, benzo[a]pyrene (BaP) and 1,1-dichloro-2,2- bis(p-chlorophenyl)ethylene (DDE), selected by consensus as likely candidates because of availability of data following the flooding events (Hurricanes ... |
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| Nonlinear Bistable Detectors and Arrival-Time Estimators Based on Parameter-Tuning Stochastic Resonance |
DEC 2006 |
12 pages |
| Authors:
Xingxing Wu; Zhong-Ping Jiang; Bohou Xu; Daniel W. Repperger; POLYTECHNIC INST OF NEW YORK BROOKLYN DEPT OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE
|
| Parameter-tuning stochastic resonance (PSR) technique provides a new approach for signal processing. This paper will first fill the gap in the performance analysis of the nonlinear PSR-based detector by comparing it with the matched filter detector under both ideal conditions (white Gaussian noise, and perfect, synchronization) and non-ideal conditions (colored noise, de-synchronization, and low sampling rate) to identify its strengths and weaknesses. |
|
| High Energy Lithium-Air Batteries for Soldier Power |
NOV 2006 |
5 pages |
| Authors:
D. L. Foster; J. R. Read; M. Shichtman; S. Balagopal; J. Watkins; J. Gordon; ARMY RESEARCH LAB ADELPHI MD
|
| High energy lithium-air cells are being developed with the use of LISICON membranes (a dense lithium ion conductor). The LISICON membrane allows cells to be divided into separate compartments, one containing the anode and the other the cathode, each with a different electrolyte. This is particularly important for the lithium/air cell where a LISICON membrane can be used to separate an organic non-aqueous anolyte from an aqueous catholyte. The LISICON ... |
|
| Strategic Mobility 21 Technical Plan |
06 SEP 2006 |
56 pages |
| Authors:
Lawrence G. Mallon; CALIFORNIA STATE UNIV LONG BEACH
|
| This Technical Plan addresses the Strategic Mobility 21 (SM21) program technical management parameters and technical approach. The SM21 program is managed as a modified DoD Advanced Concept Technology Demonstration (ACTD). The SM21 Joint Operational Concept Document (JOCD) describes SM21 as a 4-year, dual-use program, identified as a Joint Advanced Logistics Technology Demonstration (JALTD). The principal guidance for the SM21 JALTD is the Project Management Plan (PMP) with Annex A, the ... |
|
| Theoretical Analysis of Image Processing Using Parameter-Tuning Stochastic Resonance Technique |
SEP 2006 |
8 pages |
| Authors:
Bohou Xu; Xingxing Wu; Zhong-Ping Jiang; Daniel W. Repperger; ZHEJIANG UNIV HANGZHOU (CHINA) DEPT OF MECHANICS
|
| Parameter-tuning stochastic resonance (PSR) technique provides a new approach for signal processing. This paper will first fill the gap in the performance analysis of the nonlinear PSR-based detector by comparing it with the matched filter detector by comparing it with the matched filter detector under both ideal conditions (white Gaussian noise, and perfect synchronization) and no-ideal conditions (colored noise, desynchronization, and low sampling rate) to identify its strengths and weaknesses. ... |
|
| Chapter 5 - Common Military Task: Materials Handling |
SEP 2006 |
50 pages |
| Authors:
Marilyn Sharp; Mary Rosenberger; Joseph Knapik; ARMY RESEARCH INST OF ENVIRONMENTAL MEDICINE NATICK MA MILITARY NUTRITION DIV
|
| Lifting and lifting and carrying(L-L&C) tasks are the most common physically demanding tasks performed by the Armed Force of many NATO nations. These tasks contribute to overexertion injuries, particularly low back pain and disability. This review of the literature describes published recommendations for safe loads, the use of teamwork to reduce the load, equations used to predict the energy cost of L-L&C tasks, methods used by NATO nations to evaluate ... |
|
| Commercial Off the Shelf (COTS) Security Issues and Approaches |
SEP 2006 |
61 pages |
| Authors:
Dung Doan; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| We explored the effectiveness of using attributed event grammars (AEG) based environment behavior models as a method for testing and analyzing real-time, reactive software systems. The AEG specifies possible event traces and provides a uniform approach for automatically generating and executing test cases. We have demonstrated the approach through a case study (Paderborn Shuttle System Control Software) and performed three kinds of experiments: software correctness testing, system performance analysis and ... |
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| Enabling System Management through Process Modeling: The Australian Defence Force Recruiting System |
SEP 2006 |
182 pages |
| Authors:
Carrissa C. Ibbott; NAVAL POSTGRADUATE SCHOOL MONTEREY CA GRADUATE SCHOOL OF BUSINESS AND PUBLIC POLICY
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| Defence Force Recruiting (DFR) is responsible for all ab initio recruitment of full-time and part-time Officer Appointees and General Entry Enlistees into the Australian Defence Force (ADF) to serve in the Australian Army, Navy or Air Force. Despite the merging of single-service selection systems into a tri-service system and the commercialization of significant components of ADF recruitment functions in 2001, recruiting achievement continues to be below the targeted levels essential ... |
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| Integrated Sensing Processor (ISP) Phase II: Demonstration and Evaluation for Distributed Sensor Networks and Missile Seeker Systems |
31 AUG 2006 |
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| Authors:
Harry Schmidt; RAYTHEON MISSILE SYSTEMS CO TUCSON AZ
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| The primary goal of this effort is to bring to maturity a select set of basic algorithms, hardware, and approaches developed under the Integrated Sensing and Processing (ISP) Phase I program, implement them on representative hardware, and demonstrate their performance in a realistic field environment. We have identified a few promising research thrusts investigated in ISP Phase I where field demonstrations are cost prohibitive but collected data sets are available. ... |
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| Multiple UAV Task Allocation for an Electronic Warfare Mission Comparing Genetic Algorithms and Simulated Annealing (Preprint) |
AUG 2006 |
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| Authors:
Marjorie A. Darrah; William Niland; Brian Stolarik; INSTITUTE FOR SCIENTIFIC RESEARCH FARIMONT WV
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| This paper compares two algorithms applied to the task allocation of multiple Unmanned Aerial Vehicles (UAVs) for an electronic warfare mission. The electronic warfare mission scenario is discussed and a review of both the genetic algorithm and simulated annealing algorithm is given. The encoding of the problem and the functions and operations needed to implement each algorithm is outlined and compared. The algorithms were implemented and tested in Matlab. A ... |
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| A Pilot Study of Post-Hurricane Katrina Floodwater Pumping on Marsh Infauna |
JUL 2006 |
9 pages |
| Authors:
Gary L. Ray; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS ENVIRONMENTAL LAB
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| The Interagency Performance Evaluation Taskforce (IPET) is presently evaluating the performance of hurricane protection and damage reduction systems and consequences of structural failures to the New Orleans area following Hurricane Katrina. This evaluation includes determining environmental impacts to habitat and other biological resources. This report presents preliminary data concerning the effects of pumping of floodwaters on assemblages of benthic invertebrates in the immediate vicinity of the pumping stations in wetlands ... |
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PERFORMANCE TESTS
