| Evaluation of Commercial-off-the-Shelf Lithium Batteries for Use in Ballistic Telemetry Systems |
Jun-2009 |
28 pages |
| Authors:
Edward F Bukowski; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE
|
 | As technological advances continue to be made in the commercial sectors of portable and wireless communication products, additional advancements in battery technology have also been made. These advancements have allowed for the rapid growth of a large variety of commercially available batteries which have the capability to meet or even exceed the current power and size requirements for numerous ballistic telemetry systems. The replacement of a custom built battery with ... |
|
| The Benefits of a Network Tasking Order in Combat Search and Rescue Missions |
Mar-2009 |
66 pages |
| Authors:
Murat Gocmen; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH GRADUATE SCHOOL OF ENGINEERING AND MANAGEMENT
|
| Networked communications play a crucial role in United States Armed Forces operations. As the military moves towards more network centric (Net-Centric) operations, it becomes increasingly important to use the network as effectively as possible with respect to the overall mission. This thesis advocates the use of Network Tasking Orders (NTOs), which allow operators to reason about the network based on asset movement, capabilities, and communication requirements. These requirements are likely ... |
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| Hidalgo Equivital(TM) Physiological Monitor Product Review and Data Summary |
Dec-2008 |
27 pages |
| Authors:
John S Cuddy; Brent C Ruby; William R Santee; Anthony J Karis; ARMY RESEARCH INST OF ENVIRONMENTAL MEDICINE NATICK MA BIOPHYSICS AND BIOMEDICAL MODELING DIV
|
| Hidalgo Equivital(TM) Physiological Monitor and other sensors performance monitoring of physiological status was evaluated, and human data were collected on 12 wildland firefighters (WLFF). The devices were provided to the University of Montana Center for Work Physiology and Exercise Metabolism (WPEM) to collect data relative to energy costs and thermal strain. The Hidalgo system collected, recorded and displayed heart rate (HR), respiratory rate (RR), body position, core temperature (CT), and ... |
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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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| Acquisition of the B-1 Fully Integrated Data Link |
22-Sep-2008 |
30 pages |
| Authors:
Richard B Jolliffe; Michael Y Kwan; Tracey E Dismukes; Celia J Harrigan; James A Hoyt; Kevin W Klein; Bruce A Burton; Meredith H Johnson; John E Meling; Jennifer M Haake; OFFICE OF THE DEPUTY INSPECTOR GENERAL FOR AUDITING OF THE DEPARTMENT OF DEFENSE ARLINGTON VA
|
| The audit objective was to evaluate the overall management of the Air Force B-1 Fully Integrated Data Link (FIDL) Program. Because the program is in the system development and demonstration (SDD) phase, we determined whether management was effectively preparing the program for the low-rate initial production (LRIP) phase of the acquisition process. We also evaluated the internal controls as they related to the audit objectives. Appendix B provides a glossary ... |
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| National Positioning, Navigation, and Timing Architecture |
Sep-2008 |
10 pages |
| Authors:
Patrick Huested; Paul D Popejoy; NATIONAL SECURITY SPACE OFFICE (NSSO) WASHINGTON DC
|
| An interagency team, sponsored by the Departments of Defense and Transportation and led by the National Security Space Office, has developed a National Positioning, Navigation, and Timing (PNT) Architecture that will substantially affect future government- and commercially-provided PNT products and services. The Architecture envisions sustained U.S. global leadership in PNT through a strategy that makes greater PNT capabilities more generally available. The strategy is supported by vectors, or enterprise architecture ... |
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| National Positioning, Navigation, and Timing Architecture Study |
Sep-2008 |
209 pages |
| Authors:
NATIONAL SECURITY SPACE OFFICE (NSSO) WASHINGTON DC
|
| This document summarizes the results of the National Positioning, Navigation, and Timing (PNT) Architecture Study conducted from May 2006 to August 2007. The National PNT Architecture encompasses ground-, air-, space-based and internal PNT data sources to efficiently provide effective PNT solutions to DoD and US Civil users around the world and in space. It also identifies the importance of supporting infrastructure necessary to implement and maintain future PNT services for ... |
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| Nonlinear Detection, Estimation, and Control for Free-Space Optical Communication |
17-Aug-2008 |
200 pages |
| Authors:
Arash Komaee; MARYLAND UNIV COLLEGE PARK OFFICE OF RESEARCH ADMINISTRATION AND ADVANCEMENT
|
| In free-space optical communication, the intensity of a laser beam is modulated by a message, the beam propagates through free-space or atmosphere, and eventually strikes the receiver. At the receiver, an optical sensor converts the optical energy into an electrical signal, which is processed to reconstruct the original message. The promising features of this communication scheme such as high-bandwidth, power efficiency, and security, render it a viable means for high ... |
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| Safe Operation of Mobile Unmanned Ground Vehicle (UGV) Systems. Test Operations Procedure (TOP) |
08-Jul-2008 |
27 pages |
| Authors:
ABERDEEN TEST CENTER MD
|
| This document describes the procedures for determining the mobility related capabilities and characteristics of UGVs. It focuses heavily on the contribution of teleoperation to overall mobility and safe operation. |
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| Configuration of Wireless Cooperative/Sensor Networks |
25-May-2008 |
34 pages |
| Authors:
Hamid R Shafiee; B Maham; J Vazifehdan; AMERICAN UNIV IN DUBAI (UNITED ARAB EMIRATES)
|
| This report results from a contract tasking American University in Dubai as follows: The use of spatial diversity is an effective way to counter the adverse effects of fading in wireless channels. When employing more than one antenna at each node of a wireless network is not applicable, cooperation diversity protocols exploit the inherent spatial diversity of relay channels by allowing mobile terminals to cooperate and form virtual antenna arrays. ... |
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| Automated Vehicle Location Using Global Positioning Systems for First Responders |
Feb-2008 |
19 pages |
| Authors:
Daniel Portillo; AIR FORCE ACADEMY COLORADO SPRINGS CO INST FOR INFORMATION TECHNOLOGY APPLICATIONS
|
| AVL technology is assisting decision support, situation awareness, and emergency response situations. It a well known that the most critical time factor is the availability of basic information such as the location of an incident, location of emergency resources, distance to a certain location and travel time. Aside from emergency response support, AVL technology provides improved response time, resource management, schedule adherence and increased productivity on a day to day ... |
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| Network Payload Integration for the Scan-Eagle UAV |
DEC 2007 |
|
| Authors:
Han Leong Lim; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
 | With the increasing maturity of MESH network technology, it is inevitable that we exploit the synergistic capabilities in networking of autonomous vehicles. The interconnectivity enables the sharing or dissemination of information between various nodes and has the capability to enhance communication range between a Ground Control Station (GCS) and autonomous aircraft which can then be expanded to several GCSs, or in a networked combination of Unmanned Aerial Vehicle (UAV), Unmanned ... |
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| Giove-A Apparent Clock Assessment and Results |
01-Nov-2007 |
|
| Authors:
Joerg H Hahn; Patrizia Tavella; Marta Cueto; Virginia Fernandez; Alvaro Mozo; Ricardo Piriz; Daniel Navarro-Reyes; Pierre Waller; Francisco Gonzalez; Ilaria Sesia; EUROPEAN SPACE AGENCY NOORDWIJK (NETHERLANDS)
|
| The performance of the Galileo space-borne clocks is of importance for navigation and integrity at the corresponding user level. Clock estimation and prediction errors are directly mapped into the User Equivalent Range Error (UERE). The clock quality also affects the integrity performance of the Galileo system: clock "feared events," such as frequency and phase jumps, have to be characterized and adequate barriers built against them. In addition, the clocks operate ... |
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| Setup and Operation of the TeleEngineering Communications Equipment - Fixed Site (TCE-F), Version 3 |
NOV 2007 |
40 pages |
| Authors:
Jeffrey L. Williamson; Larry N. Lynch; Jeff Powell; Bryan Register; Richard Burrow; Jerry Strnger; Willism C. Fryer; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS GEOTECHNICAL AND STRUCTURES LAB
|
| In fiscal year 1997, the U.S. Army Engineer Research and Development Center initiated a technology demonstration program to determine the feasibility of providing deployed troops with direct access to subject matter experts (SME). Direct access to the SME allows responses to engineering challenges beyond the in-theater capability to be provided without the time delays and costs associated with deploying the SME to the theater. The purpose of this report is ... |
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| Adaptive Filtering and System Identification |
03 OCT 2007 |
9 pages |
| Authors:
Steve Gibson; CALIFORNIA UNIV LOS ANGELES DEPT OF MECHANICAL AND AEROSPACE ENGINEERING
|
| The primary objectives of this project are to develop new real time algorithms for adaptive filtering, prediction, and system identification with improved efficiency and numerical stability for the large numbers of channels and high filter orders typically required in Air Force applications such as adaptive optics, laser communications, target tracking and image processing. The research supports research and development at the Air Force Research Laboratory on directed energy weapons and ... |
|
| Military Health: DOD's Vaccine Healthcare Centers Network |
29 JUN 2007 |
19 pages |
| Authors:
GOVERNMENT ACCOUNTABILITY OFFICE WASHINGTON DC
|
| Members of the military have long been required to receive immunizations.1 The Department of Defense (DOD) estimates that over 2.2 million servicemembers2 receive at least one mandatory immunization annually. Immunizations are provided through the administration of vaccines, which contain "antigens"or parts of a specific virus or bacterium that are used to trigger an immune response to protect the body from disease. DOD's immunization requirements vary depending on several factors, such ... |
|
| HPC Access Using "KVM over IP" |
08 JUN 2007 |
9 pages |
| Authors:
Dan Kedziorek; Gregory P. Czerniak; ARMY RESEARCH DEVELOPMENT AND ENGINEERING COMMAND WARREN MI
|
| A persistent challenge in the High-Performance Computing (HPC) community is how to provide remote visualization capability to its users. A dynamic and economical solution is a KVM-over-IP technology, which uses a pre-existing TCP/IP network to transmit KVM data between two locations. However, the level of performance and functionality present in the current consumer-level KVM-over-IP devices makes them less than desirable for DoD HPC applications. To address the specific needs of ... |
|
| Limited Evaluation of an 802.11b Air-to-Air Wireless Data Link (Project Have HALO II) |
01 JUN 2007 |
53 pages |
| Authors:
Robert A. Volesky; Jason W. Geitgey; Jason C. Vap; Douglas O. Creviston; Morikazu Kikuchi; AIR FORCE FLIGHT TEST CENTER EDWARDS AFB CA
|
| This report presents the results of Project Have HALO II a limited evaluation of an 802.11b wireless air-to-air data link between two C-12C aircraft. This test program demonstrated the 802.11b wireless data link reception range under 1 Watt and 5 Watts of amplification, corresponding to 0.32 and 1.58 Watt effective isotropic radiated power. The test team also demonstrated the capability of transmitting still photos, streaming video, pre-recorded video and text ... |
|
| Continuous Pre-hospital Data as a Predictor of Outcome Following Major Trauma: A Study Using Improved and Expanded Data |
JUN 2007 |
23 pages |
| Authors:
E. S. Kinkler; Victor A. Convertino; Donald J. Gordon; John B. Holcomb; Jose Salinas; SOUTHWEST RESEARCH INST SAN ANTONIO TX
|
| This study is designed to acquire near continuous physiologic measurements, beginning at the earliest practical time after injury, on large numbers of injured patients with severe trauma. The study will utilize commercially available FDA-certified monitoring equipment, operating in a fleet of ground EMS ambulances currently serving a large metropolitan area with multiple trauma centers. First Responders may represent the earliest opportunity to acquire meaningful medical data in injury cases. This ... |
|
| National Positioning, Navigation and Timing (PNT) Architecture Workshop at Volpe, 26 April 2007 |
17 APR 2007 |
47 pages |
| Authors:
NATIONAL SECURITY SPACE OFFICE (NSSO) WASHINGTON DC
|
| This briefing gives an overview of the format of the National PNT Architecture Workshop at Volpe National Transportation Systems Center in Cambridge, MA, on 26 Apr 2007, looking at the architecture development process, its current status and where it is headed. The PNT is a system of systems designed to guide government-provided positioning, navigation and timing systems. |
|
| Community Hospital Telehealth Consortium |
APR 2007 |
19 pages |
| Authors:
Jr Williams Elton L.; SOUTHWEST LOUISIANA HEALTHCARE SYSTEM LAKE CHARLES CHTC TELEMED/LCMH
|
| The Community Hospital Telehealth Consortium is a unique, forward-thinking, community-based healthcare service project organized around 5 not-for-profit community hospitals located throughout Louisiana and Mississippi. The central tenet of the CHTC project is the utilization of TeleHealth technology to improve and expand the opportunity for rural and urban underserved populations to receive quality, affordable health care. The CHTC's goals are to improve quality of and access to health care, to reduce ... |
|
| A Comparable Market Study of RFID for Manual Item-Level Accountability Inventory and Tracking Systems |
MAR 2007 |
111 pages |
| Authors:
Valencia V. Courtney; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| This thesis focuses on a return on investment (ROI) strategy for radio frequency identification (RFID) item-level tagging of assets by organizations that maintain manual inventory and tracking systems. The basis of strategy exists in leveraging benefits offered in repeated use of automated identify data and capture technology, RFID. The business model used for this thesis focuses on organizations that provide reference material management services (RMMS) (e.g. library reference material, employee ... |
|
| Lithographically-Scribed Planar Holographic Optical CDMA Devices and Systems |
15 FEB 2007 |
58 pages |
| Authors:
Thomas Mossberg; LIGHTSMYTH TECHNOLOGIES INC EUGENE OR
|
| Recent advances in photo lithographic fabrication and planar waveguides have created a powerful opportunity. For the First time it is possible to generate arbitrary computer-designed. waveguide volume holograms and to do so robustly and at low cost. Holographic Bragg Reflectors (HBRs) comprise an exemplary lithographically scribed fully integrated holographic device useful for multiplexing of wavelength differentiated optical signals and general purpose spectral filtering. HBRs provide both a flexible spectral filtering ... |
|
| Infrared Data Link using a Multiple Quantum Well Modulating Retro-reflector on a Small Rotary-Wing UAV |
2007 |
9 pages |
| Authors:
W. S. Rabinovich; G. C. Gilbreath; Chris Bovais; Kerry Cochrell; H. R. Burris; Mena Ferraro; Michael Vilcheck; Rita Mahon; Kim Goins; Ilene Sokolsky; John Vasques; Timothy Meehan; Robin Barbehenn; D. S. Katzer; K. Ikossi-Ansatasiou; NAVAL RESEARCH LAB WASHINGTON DC
|
| This paper describes a recent demonstration of an optical data link between a small rotary-wing unmanned airborne vehicle (UAV) and a ground based laser interrogator using the NRL multiple quantum well modulating retro-reflector (MRR). MRR systems couple an optical retro-reflector, such as a corner-cube, and an electro-optic shutter to allow two-way optical communications using a laser, telescope and pointertracker on only one platform. The NRL MRR uses a semiconductor based ... |
|
| Authentication for Bulk Data Dissemination in Sensor Networks Using Symmetric Keys |
2007 |
26 pages |
| Authors:
Limin Wang; Sandeep S. Kulkarni; MICHIGAN STATE UNIV EAST LANSING DEPT OF COMPUTER SCIENCE/ENGINEERING
|
| Authenticating bulk data dissemination in sensor networks is important as sensors need to verify that the data is truly from a trusted source. There are two ways to achieve authentication: asymmetric key based and symmetric key based. Although previous work has shown that asymmetric key authentication is feasible on sensor nodes if used sparingly, it is still quite expensive compared to symmetric key based approach. In this paper, we propose ... |
|
| Information and Communications Technology Industry: Spring 2007 Industry Study |
2007 |
29 pages |
| Authors:
William Adamson; Raji Bezwada; David Doe; Jeanette Duncan; Akhil Govil; Timothy Harms; Luwanda Jones; James Karnes; Felipe Morales; John Morrison; INDUSTRIAL COLL OF THE ARMED FORCES WASHINGTON DC
|
| The Information & Communications Technology (ICT) industry provides enabling capability for all major industries. The US ICT industry leads the world but must overcome several near-term challenges if it hopes to retain its global leadership. Some of the key challenges include reforming H1-B visa allocations to maintain a strong US-based IT workforce, monitoring the on-going convergence of telephony, data, and video services, resolving the debate over Internet neutrality, and supporting ... |
|
| A Secure Alert System |
DEC 2006 |
83 pages |
| Authors:
Heng Hui Chew; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| The integrated mobile alert system (IMAS) is a mobile device messaging system that provides a means for people to stay connected and receive information in a modality that is constantly available to them. It was developed and built into a proof-of-concept (PoC) system at the Naval Postgraduate School (NPS) from commercial off the shelf (COTS) products. Like other systems, this system suffers from vulnerabilities because of bugs. These bugs come ... |
|
| Simulation and Performance Analysis of Routing in SONET/SDH Data Communications Network (DCN) |
DEC 2006 |
91 pages |
| Authors:
Kuan C. Loh; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| This thesis analyzes the ITU-T G.7712 standard to evaluate the main features and specifications that are defined in the 11/2001 edition. The latest 03/2003 revision was also reviewed to determine what are the changes and latest update presented in that paper. In order to find out the compliance among telecommunication industry vendors, surveys were also conducted to determine which is the most widely supported standard. Finally, simulations were run using ... |
|
| Electronic Biometric Transmission Specification. Version 1.2 |
08 NOV 2006 |
79 pages |
| Authors:
BIOMETRIC CLARKSBURG WV
|
| This DoD Electronic Biometric Transmission Specification (EBTS) describes customizations of the Federal Bureau of Investigation (FBI) Electronic Fingerprint Transmission Specification (EFTS) transactions that are necessary to utilize the Department of Defense (DoD) Automated Biometric Identification System (ABIS). |
|
| Automated Spectrum Plan Advisor for On-The-Move Networks |
OCT 2006 |
6 pages |
| Authors:
William Heisey; William Kline; Harris Zebrowitz; Randy Poe; Shanti Sharma; Andrew Cortese; Mahbub Hoque; Francis Loso; Yoram Levy; LOCKHEED MARTIN ADVANCED TECHNOLOGY LABS CHERRY HILL NJ
|
| Warfighters today face new challenges in accessing the electromagnetic spectrum. These challenges are due to the significant growth in spectrum demands for deployed spectrum dependent systems, increased demand for information and advanced C2 concepts associated with net-centricity and increased competition for spectrum resources from commercial and civil interests. This adds up to near complete spectrum saturation in areas of potential DoD deployment. In addition, the rapid pace of future Net ... |
|
| Dual Fine Tracking Control of a Satellite Laser Communication Uplink |
14 SEP 2006 |
190 pages |
| Authors:
Louis A. Noble; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT
|
| A dual fine tracking control system (FTCS) is developed for a single aperture optical communication receiver to compensate for high frequency disturbances affecting tracking of two incident laser communication beams. The optical communication receiver resides within a payload module aboard a geosynchronous satellite, while each laser communication transmitter is housed within a module aboard a high altitude unmanned aerial vehicle (UAV). In addition to platform specific disturbances, the impact of ... |
|
| Medical Vanguard Diabetes Management |
SEP 2006 |
86 pages |
| Authors:
Seong K. Mun; GEORGETOWN UNIV WASHINGTON DC
|
| The Medical Vanguard Diabetes Management Project was designed to deploy an Internet based diabetes management system, MyCare Team, into a number of existing diverse clinical environments and evaluate how such a stand-alone clinical information system can be integrated into diabetes management program. The diverse environments include the High-Risk Pregnancy Clinic at the National Naval Medical Center and Native American Communities throughout the United States. The GAO Report Executive Guide: Measuring ... |
|
| Field Tests of Acoustic Telemetry for a Portable Coastal Observatory |
Sep-2006 |
7 pages |
| Authors:
Marinna Martini; Bradford Butman; Jonathan Ware; Dan Frye; GEOLOGICAL SURVEY WOODS HOLE MA
|
| Long-term field tests of a low-cost acoustic telemetry system were carried out at two sites in Massachusetts Bay. At each site, an acoustic Doppler current profiler mounted on a bottom tripod was fitted with an acoustic modem to transmit data to a surface buoy; electronics mounted on the buoy relayed these data to shore via radio modem. The mooring at one site (24 m water depth) was custom-designed for the ... |
|
| Technology Refresh of NOAA's Tropical Atmosphere Ocean (TAO) Buoy System |
Sep-2006 |
7 pages |
| Authors:
Chung-Chu Teng; Landry J Bernard; Pete A Lessing; NATIONAL DATA BUOY CENTER STENNIS SPACE CENTER MS
|
| National Oceanic and Atmospheric Administration's (NOAA) Tropical Atmosphere Ocean (TAO) buoy array has a long history of providing valuable climate data to both the climate and forecast communities. A major concern for a sustained and long-term TAO operation is the impending obsolescence of the technology used in the current version of the TAO array. An increasing number of components are being discontinued or are no longer supported by the manufacturers ... |
|
| Effects of Multiple Scattering on the Implementation of an Underwater Wireless Optical Communications Link |
Sep-2006 |
7 pages |
| Authors:
Alan Laux; Brandon Cochenour; Linda Mullen; Tom Curran; NAVAL AIR SYSTEMS COMMAND PATUXENT RIVER MD
|
| Recent interest in ocean exploration has brought about a desire for developing wireless communication techniques in this challenging environment. Due to its high attenuation in water, a radio frequency (RF) carrier is not the optimum choice. Acoustic techniques have made tremendous progress in establishing wireless underwater links, but they are ultimately limited in bandwidth. A third option is optical radiation, which is discussed in this paper. One drawback of underwater ... |
|
| Mitigating TCP Degradation over Intermittent Link Failures using Intermediate Buffers |
JUN 2006 |
107 pages |
| Authors:
M. B. Reynolds; AIR FORCE INST OF TECHNOLOGY WRIGHT-PATTERSON AFB OH GRADUATE SCHOOL OF ENGINEERING AND MANAGEMENT
|
| This thesis addresses the improvement of data transmission performance in a challenged network. It is well known that the popular Transmission Control Protocol degrades in environments where one or more of the links along the route is intermittently available. To avoid this degradation, this thesis proposes placing at least one node along the path of transmission to buffer and retransmit as needed to overcome the intermittent link. In the four-node, ... |
|
| Limited Evaluation of an 802.11b Air-to-Ground Wireless Datalink (Project "HAVE HALO") |
JUN 2006 |
69 pages |
| Authors:
Michael J. Dooley; Chris J. Spinelli; Laura M. Durham; George N. Schwartz; Troy C. Welker; AIR FORCE FLIGHT TEST CENTER EDWARDS AFB CA
|
| This report presents the results of the limited evaluation of an 802.11b wireless air-to-ground datalink between a ground station and a C-12C aircraft. Testing occurred between 10 April and 2 May 2006. This test program demonstrated the 802.11b wireless datalink reception range when transmitting at 4 Watts effective isotropic radiated power. The test team also demonstrated the utility of high resolution imagery and streaming video transmitted across the datalink. The ... |
|
| Tactical Digital Information Link-Technical Advice and Lexicon for Enabling Simulation (TADIL-TALES) II: Link 11/11B |
JUN 2006 |
|
| Authors:
Joe Sorroche; Rob Byers; Neil Barrett; ASRC COMMUNICATION LTD KIRTLAND AFB NM DISTRIBUTED MISSION OPERATIONS CENTER
|
| Link 11/11B, otherwise known as TADIL A and TADIL B, has been used by U.S. Services and NATO nations for many years. However, the NATO Standard Agreement (STANAG) 5602 Standard Interface for Multiple Platform Link Evaluation (SIMPLE) does not fully describe the radio frequency network environment, which is required to model a more robust Link 11/11B operation. In addition, the IEEE 1278.1a standard does not provide a way to model ... |
|
| Med-E-Tel |
APR 2006 |
511 pages |
| Authors:
Frank Lievens; Malina Jordanova; LUXEXPO KIRCHBERG (LUXEMBOURG)
|
| Med-e-Tel, is an international conference and exhibition, taking place annually in Luxembourg and organized by Luxexpo. Med-e-Tel 2006 was held on April 5-7, 2006 and attracted 400 participants from 48 countries. Participants included hospital administrators and department heads, association executives, industry (health, IT, telecom) representatives, academia, researchers, local and international government representatives, health insurers, homecare services. The Med-e-Tel 2006 conference program covered over 130 presentations on topics such as homecare ... |
|
| Controlling Unmanned Aerial Vehicles During Crisis Response |
APR 2006 |
19 pages |
| Authors:
Ricky E. Sward; Stephen Cooper; AIR FORCE ACADEMY COLORADO SPRINGS CO INST FOR INFORMATION TECHNOLOGY APPLICATIONS
|
| The purpose of this project was to continue our research on Unmanned Aerial Vehicles (UAVs) and their usefulness during a response to a crisis situation. In previous work we have shown that both the video feed and the location of the UAV can be displayed in a command center to increase the situational awareness of commanders. The research presented here will build on our previous work and improve the situational ... |
|
| Notes on the SHUMA Protocol. Scalable Access to Link-16 Time Slots |
30 MAR 2006 |
45 pages |
| Authors:
John Custy; Allen Shum; SPACE AND NAVAL WARFARE SYSTEMS CENTER SAN DIEGO CA
|
| This document describes the mechanisms by which SHUMA provides adaptive, scalable access to Link-16 time slots while simplifying network design. Analysis and simulation results illustrate the relative merits of SHUMA versus conventional protocols. |
|
| Evaluation and Analysis of Node Localization Power Cost in Ad-hoc Wireless Sensor Networks with Mobility |
MAR 2006 |
119 pages |
| Authors:
Brian A. Sessler; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT
|
| One of the key concerns with location-aware Ad-hoc Wireless Sensor Networks (AWSNs) is how sensor nodes determine their position. The inherent power limitations of an AWSN along with the requirement for long network lifetimes makes achieving fast and power-efficient localization vital. This research examines the cost (in terms of power) of network irregularities on communications and localization in an AWSN. The number of data bits transmitted and received are significantly ... |
|
| Performance Analysis of a Cooperative Search Algorithm for Multiple Unmanned Aerial Vehicles under Limited Communication Conditions |
MAR 2006 |
138 pages |
| Authors:
Kevin M. Morris; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT
|
| This research investigates the impacts of realistic wireless communications upon a group of unmanned aerial vehicles (UAVs) utilizing a distributed search algorithm. The UAVs are used to survey an area for mobile targets and they require communication to cooperatively locate the targets. The mobile targets do not continually radiate energy, which exacerbates the search effort; a UAV could fly directly over a target and not detect it. A simulation of ... |
|
| Exploiting Semi-Directional Transceivers for Localization in Communication Systems |
MAR 2006 |
68 pages |
| Authors:
Andrew S. Crockford; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT
|
| Localization is the process of determining relative, as well as absolute, positions of communicating devices. Traditionally, the process is conducted using range or directional estimates. In contrast, this research uses weak information to form relatively tight bounds on possible locations of communicating devices. Under certain conditions, achieved location estimation results are strong. However, these results are highly sensitive to the operating conditions of the proposed networks. More significant results were ... |
|
| A High-Speed High-Frequency Broadband Acoustic Modem for Short-to-Medium Range Data Transmission in Ports, Very Shallow Waters and Deep Waters Using Spread-Spectrum Modulation and Decision Feedback Equalizing |
06 FEB 2006 |
|
| Authors:
Pierre-Philippe Beaujean; John Spruance; Dion Kriel; FLORIDA ATLANTIC UNIV BOCA RATON
|
| Testing of a high-resolution decision feedback equalizing with parallel tracking of large Doppler algorithm developed at FAU by Prof. Beaujean: The long-term objective is the commercialization of a high-speed high-frequency acoustic modem transmitting data at true rates of up to 105,000 bps, at a maximum range of 500 m and operate between 240 kHz and 380 kHz. Acoustic communications were achieved at a coded rate up to 150,000 bps at ... |
|
| The Effects of Pushing the Digital Divide to the Fighting Hole |
03-Feb-2006 |
14 pages |
| Authors:
J M Hamilton; MARINE CORPS COMMAND AND STAFF COLL QUANTICO VA
|
| As society moves from the industrial age to the information age, the importance of sharing accurate and timely information throughout the asymmetric battlespace is becoming increasingly apparent. The current lessons learned from Afghanistan and Iraq have shown that, oftentimes, it is the Platoon Leader, and not the Battalion Commander, who needs the digital communication feed from the Unmanned Aerial Vehicle (UAV) so that a critical tactical decision can be made. ... |
|
| Synchronization and Detection of Binary Data in Free-Space Optical Communication Systems using Haar Wavelet Transformation |
JAN 2006 |
14 pages |
| Authors:
Nader Namazi; Jr Burris Harris R.; Charles Conner; G. C. Gilbreath; CATHOLIC UNIV OF AMERICA WASHINGTON DC DEPT OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE
|
| A new method is presented to perform bit synchronization and detection of binary nonreturn-to-zero (NRZ) data from a free-space optical (FSO) communication link. Based on the wavelet transformation, a new bandpass filter is developed and implemented. It is shown that the Haar wavelet is an excellent choice for this purpose. The center frequency of this filter is a function of the scale and could be adjusted to adapt to the ... |
|
| Support Platform and Communications to Manage Cooperative AUV Operations |
2006 |
9 pages |
| Authors:
T. R. Cuff; R. W. Wall; IDAHO UNIV MOSCOW
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| For the testing of control and communications algorithms in cooperative behavior, a fleet of autonomous underwater vehicles (AUVs) is under development by the University of Idaho. This paper discusses one piece of the puzzle in this fleet: the communications module to manage multiple agents. The communications system provides multiple modes of operation. Different communications mediums to and from the vehicle support these modes of operation. The tools supplied by the ... |
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| Packet Testing in Free-Space Optical Communication Links Over Water |
2006 |
11 pages |
| Authors:
M. R. Suite; H. R. Burris; C. I. Moore; M. F. Stell; L. Wasiczko; W. Freeman; W. S. Rabinovich; G. C. Gilbreath; W. J. Scharpf; NAVAL RESEARCH LAB WASHINGTON DC ADVANCED SYSTEMS TECHNOLOGY BRANCH
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| NRL's Chesapeake Bay lasercom test facility (LCTF) offers a variety of ranges for researching free-space optical laser communication (FSO lasercom) links in a maritime environment. This paper discusses link performance over the 16 km one-way range at the LCTF. There are several methods to determine the link quality in FSO lasercom. Bit-error-rate (BER) testing and packet testing are two possible methods. Since errors generally tend to occur in bursts in ... |
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| Characterization of the Marine Atmosphere for Free-Space Optical Communication |
2006 |
13 pages |
| Authors:
Linda M. Wasiczko; Christopher I. Moore; Harris R. Burris; Michele Suite; Mena Stell; James Murphy; G. C. Gilbreath; William Rabinovich; William Scharpf; NAVAL RESEARCH LAB WASHINGTON DC
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| The Chesapeake Bay Detachment of the Naval Research Laboratory (NRL-CBD) provides an ideal environment for characterizing the effects of the marine atmosphere on free space optical communication links. The site has recently been converted to an operational 10 mile (16.2 km) one-way test range to collect information on propagation statistics in a variety of atmospheric conditions. The results presented here compare the contributions of thermal gradients across the bay to ... |
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Telemetry
