| A Study of Executable Model Based Systems Engineering from DODAF Using Simulink |
01 Sep 2012 |
93 pages |
| Authors:
Michael H Ryan; Weston J Hanoka; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH GRADUATE SCHOOL OF ENGINEERING AND MANAGEMENT
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 | Diagrams and visuals often cannot adequately capture a complex system?s architecture for analysis. The Department of Defense Architectural Framework (DoDAF), written to follow the Unified Modeling Language (UML), is a collection of mandated common architectural products for interoperability among the DoD components. In this study, DoDAF products from as-is Remotely Piloted Aircraft (RPA) Satellite Communication (SATCOM) systems have been utilized for the creation of executable architectures as part of an ... |
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| An Analysis of the Computer Security Ramifications of Weakened Asymmetric Cryptographic Algorithms |
Jun 2012 |
98 pages |
| Authors:
Eric R Bixby; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
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| This paper explores the ramifications of what a proof that non-deterministic polynomial (NP) time algorithms could be solved in polynomial (P) time would mean for computer networking and the Internet as a whole. The P = NP problem and is a famous and unresolved mathematical question. If the P and NP classes of problems are really one in the same, there would be significant ramifications across numerous fields, including and ... |
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| Risk Assessment Planning for Airborne Systems: An Information Assurance Failure Mode, Effects and Criticality Analysis Methodology |
Jun 2012 |
67 pages |
| Authors:
Charles J Middleton; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH GRADUATE SCHOOL OF ENGINEERING AND MANAGEMENT
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| Increasingly in recent times, aircraft are built with communications links to external participants. These communications links may in some cases be susceptible to degradation or attack, which may then lead to safety of flight or mission effectiveness risks. This project examines risk assessment of the information assurance and security of newly developed airborne systems. First, an investigation of the past failures of the security of other networked systems is examined ... |
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| Linking and Streamlining the Defense Requirements, Acquisition, and Budget Processes |
19 Apr 2012 |
26 pages |
| Authors:
DEFENSE BUSINESS BOARD WASHINGTON DC
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| Task Group Focus Review the current Joint Capability and Integration System (JCIDS). Recommend business practices that allow the prioritized needs of the warfighter to be met on a timeline that can impact near to midterm operations. Recent initiatives by the VCJCS led the Task Group to focus on integrating the defense acquisition system (requirements, acquisitions, and budgets) into a single streamlined process. |
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| Tactical Aircraft: Comparison of F-22A and Legacy Fighter Modernization Programs |
Apr 2012 |
46 pages |
| Authors:
Michael J Sullivan; Bruce Fairbairn; Travis Masters; Robert Miller; Marie Aheam; Marvin Booner; Laura Greifner; Roxanna Sun; GOVERNMENT ACCOUNTABILITY OFFICE WASHINGTON DC
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| The Air Force s F-22A Raptor is the only operational tactical aircraft incorporating a low observable (stealth) and highly mamaneuverable airframeadvanced integrated avionics, and a supercruise engine capable of sustained supersonic flight. The F-22A acquisition program began in 1991 with an intended development period of 12 years and planned a procurement of 648 aircraft. The system development and demonstration period eventually spanned more than 14 years, during which time threats, ... |
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| Net Warrior D10 Technology Report: Airborne Early Warning and Control (AEW&C) and Data Link Nodes |
Apr 2012 |
50 pages |
| Authors:
Derek Dominish; Peter Temple; Christos Sioutis; Callum Baillie; Kate Foster; DEFENCE SCIENCE AND TECHNOLOGY ORGANISATION EDINBURGH (AUSTRALIA) AIR OPERATIONS DIV
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| This report discusses the Air Operations Division contribution to the Net Warrior demonstration event NW-D10. NW-D10 was held in September 2010 and demonstrated information interoperability of middleware technologies in dynamic environments with real mission systems. An overview of the NW-D10 event is provided along with a discussion of the technologies demonstrated. The outcomes of NW-D10 are presented and future Net Warrior events and enabling research are outlined. |
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| Analysis of the Sustainment Organization and Process for the Marine Corps' RQ-11B Raven Small Unmanned Aircraft System (SUAS) |
Mar 2012 |
91 pages |
| Authors:
Jeffery Van Bourgondien; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
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| The purpose of this study is to outline and analyze the acquisition and sustainment process for the current U.S. Marine Corps' RQ-11B Raven Digital Data Link small unmanned aerial system program. The current sustainment of the Marine Corps' Raven evolved from the support employed for its predecessor analog variant in 2008, which was originally supported by Marine organic assets below depot-level maintenance requirements. The Raven's manufacturer, AeroVironment Inc., now stations ... |
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| John C. Stennis Carrier Strike Group N6 Post Deployment Brief 27 July 2011 - 02 March 2012 |
Mar 2012 |
13 pages |
| Authors:
Robert Riccitelli; THIRD FLEET NAVAL BASE KITSAP WA CARRIER STRIKE GROUP THREE
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| Analysis of Photonic Phase-Shifting Technique Employing Amplitude-Controlled Fiber-Optic Delay Lines |
13 Jan 2012 |
29 pages |
| Authors:
Meredith N Draa; Vincent J Urick; Keith J Williams; NAVAL RESEARCH LAB WASHINGTON DC PHOTONICS TECHNOLOGY BRANCH
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| This report describes a fiber-optic link design for the long-haul remoting of HF antennas. The link presented here is intended for remoting the antenna element a distance upwards of 7.0 km (4.3 mi) but the theoretical treatment allows for the design and analysis of links for greater stand offs. The analysis is carried out using well-established theory and verified experimental data which are employed throughout. A complete list of supporting ... |
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| U.S. Unmanned Aerial Systems |
03 Jan 2012 |
56 pages |
| Authors:
Jeremiah Gertler; LIBRARY OF CONGRESS WASHINGTON DC CONGRESSIONAL RESEARCH SERVICE
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| Unmanned aerial systems comprise a rapidly growing portion of the military budget, and have been a long-term interest of Congress. At times, Congress has encouraged the development of such systems; in other instances, it has attempted to rein in or better organize the Department of Defense s efforts. Unmanned aircraft are commonly called unmanned aerial vehicles (UAVs), and when combined with ground control stations and data links, form UAS, or ... |
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| MEMS Lens Scanners for Free-Space Optical Interconnects |
15 Dec 2011 |
119 pages |
| Authors:
Jeffrey B Chou; CALIFORNIA UNIV BERKELEY DEPT OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE
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| Optical interconnects are the next evolutionary step for computer server systems, replacing traditional copper interconnects to increase communication bandwidth and reduce overall power consumption. A variety of implementation techniques to bring optics to the rack-to-rack, boardto- board, and chip-to-chip scale are heavily pursued in the research space. In this dissertation we present a micro-electro mechanical systems (MEMS) based free-space optical link for board-toboard interconnects. As with any free-space optical system, ... |
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| Investigation of Propagation in Foliage Using Simulation Techniques |
Dec 2011 |
115 pages |
| Authors:
Chung W Chan; NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
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| In a foliage environment, radio wave propagation is subjected to fading on both large-scales and small-scales that impairs the quality and reliability of data link transmission. This has implications for many military operations. One example is the effects of foliage on the performance of communications links and unmanned aerial vehicle (UAV) radio links when ground forces are operating in foliage environments. The purpose of this research is to evaluate some ... |
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| Data Supply Chain Management: Supply Chain Management for Incentive and Risk-based Assured Information Sharing |
Dec 2011 |
11 pages |
| Authors:
Bhavani Thuraisingham; TEXAS UNIV AT ARLINGTON DEPT OF COMPUTER SCIENCE
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| In this paper we introduce the notion of data supply chain management and draw parallels between supply chain management and developing a data product. Then we discuss information sharing in supply chain management and discuss risks and incentives for information sharing. Our objective is to implement the Department of Defense Information Sharing Strategy whose goal is to Recognize and leverage the Information Sharing Value Chain. This is the seventh in ... |
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| Photonic Applications Using Electrooptic Optical Signal Processors |
16 Nov 2011 |
43 pages |
| Authors:
Harold R Fetterman; CALIFORNIA UNIV OAKLAND
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| During the contract new designs of electrooptic signal processors were made from nonlinear optical polymers. These systems were based upon the latest lowest loss polymers available and involved a novel system of serial modules. The first implementation of these devices included ring resonators [1], analog-to-digital conversion [2] and single sideband optical links [3]. These are discussed in the paper [4] by Seo on Optical Signal Processor using electrooptic waveguides. One ... |
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| UGV Interoperability Lab October Update |
12 Oct 2011 |
20 pages |
| Authors:
Matthew Skalny; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI
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| Distributed Algorithms for Consensus and Coordination in the Presence of Packet-Dropping Communication Links. Part 1: Statistical Moments Analysis Approach |
28 Sep 2011 |
31 pages |
| Authors:
Alejandro D Dominguez-Garcia; Christoforos N Hadjicostis; Nitin H Vaidya; ILLINOIS UNIV AT URBANA DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
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| This two-part paper discusses robustification methodologies for linear-iterative distributed algorithms for consensus and coordination problems in multicomponent systems, in which unreliable communication links may drop packets. We consider a setup where communication links between components can be asymmetric (i.e. component j might be able to send information to component i, but not necessarily vice-versa), so that the information exchange between components in the system is in general described by a ... |
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| Optical Information Science |
Sep 2011 |
40 pages |
| Authors:
Joseph Osman; Michael Fanto; Thomas McEwen; Clare Thiem; Jared Pawloski; Andrew Corp; Cory Johnson; David Huber; AIR FORCE RESEARCH LAB ROME NY INFORMATION DIRECTORATE
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| The purpose of this in-house program was to develop techniques, architectures and systems in optical information science to support AF programs in advanced computer concepts and signal processing. We concentrated on bringing optical interconnects into advanced architectures as a way of reducing latency in interprocessor communications, especially at the memory level. We began by exploring free space interconnection and designed a selective receiver to allow high signal-to-noise interconnects with low ... |
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| Initial Design and Concept of Operations for a Clandestine Data Relay UUV To Circumvent Jungle Canopy Effects on Satellite Communications |
Sep 2011 |
91 pages |
| Authors:
Michael G Tyree; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
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| Communications within jungle environments has always been a difficult proposition. This is especially true of collection assets beneath triple canopy jungle that need to communicate with overhead national assets. The traditional methods of countering the negative effects of the canopy on EM signals have been to increase the power to offset the losses, or to utilize new, more canopy transparent portions of the EM spectrum. However, there are complications with ... |
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| BRITEdge 11-1 Limited Objective Experiment |
15 Jul 2011 |
34 pages |
| Authors:
William H Roeting; Charles Menza; NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF INFORMATION SCIENCES
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| This report summarizes the results of a limited objective experiment to demonstrate the capability of ROVER technology to provide real-time full motion video surveillance of the U.S.-Mexican border in support of U.S. Customs and Border Protection (CBP) agents. The CBP agents saw significant value in ROVER 4 and ROVER 5 for use in the mobile vehicle to support command and control (C2), and for the Tactical ROVER being used by ... |
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| Exploring Potential ADS-B Vulnerabilites in the FAA's Nextgen Air Transportation System |
JUN 2011 |
56 pages |
| Authors:
Donald L. McCallie; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
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| The Federal Aviation Administration's (FAA) Next Generation upgrade proposes a fundamental transformation to the national airspace system (NAS) that aims to reduce dependence on outdated radar infrastructure, increase airline safety and condense required aircraft spatial separation. A key component of the upgrade is the Automatic Dependent Surveillance-Broadcast (ADS-B) system. ADS-B provides continual broadcast of aircraft position, identity, velocity and other information over unencrypted data links to generate a precise air ... |
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| Tailoring the Statistical Experimental Design Process for LVC Experiments |
MAR 2011 |
152 pages |
| Authors:
Casey L. Haase; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT
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| The use of Live, Virtual and Constructive (LVC) Simulation environments are increasingly being examined for potential analytical use particularly in test and evaluation. The LVC simulation environments provide a mechanism for conducting joint mission testing and system of systems testing when scale and resource limitations prevent the accumulation of the necessary density and diversity of assets required for these complex and comprehensive tests. The statistical experimental design process is re-examined ... |
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| Systems Engineering for Distributed, Live, Virtual, and Constructive (LVC) Simulation |
Dec 2010 |
12 pages |
| Authors:
Scott Gallant; Chris Gaughan; ARMY SIMULATION AND TRAINING TECHNOLOGY CENTER ORLANDO FL
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| Designing a distributed simulation environment across multiple domains that typically have disparate middleware transport protocols, data exchange formats and applications increases the difficulty of capturing and linking system design decisions to the resultant implementation. Systems engineering efforts for distributed simulation environments are typically based on the middleware transport used, the applications available and the constraints placed on the technical team including network, computer and personnel limitations. To facilitate community re-use, ... |
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| ICTNET at Web Track 2010 Ad-hoc Task |
NOV 2010 |
5 pages |
| Authors:
Xu Chen; Zeying Peng; Jianguo Wang; Xiaoming Lu; Yue Liu; Hongbo Xu; Xueqi Cheng; CHINESE ACADEMY OF SCIENCES BEIJING INST OF COMPUTING TECHNOLOGY
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| In this paper, our team - "ICTNET", participated in the ad-hoc task of Web Track of TREC 2010. The full Category A dataset was used. The sliding window BM25 model was extended from last year?s method, combining with link analysis to rank the final results. All the methods having been tried in our experiments are delineated, and the evaluation results from the organizers of Web Track are presented thereafter. |
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| Voice-on-Target: A New Approach to Tactical Networking and Unmanned Systems Control via the Voice Interface to the SA Environment |
Jun-2009 |
34 pages |
| Authors:
Alex Bordetsky; Eugene Bourakov; NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF INFORMATION SCIENCES
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| Since 2004 the authors have been actively involved in the innovative Tactical Network Topology (TNT) experimentation program, which the Naval Postgraduate conducts quarterly with the United States Special Operations Command (USSOCOM) to explore emerging agile adaptive tactical networks. One of our first findings was a set of solutions enabling rapid adaptation of broadband wireless networks to the commander's needs, which we have named Network-on-Target (Bordetsky and Bourakov, 2006). According to ... |
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| Simulation-Based Analysis and Evaluation of Tactical Multi-Hop Radio Networks |
Mar-2009 |
125 pages |
| Authors:
Howard D Smith; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
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| For many years, the technologies involved in the newest generations of tactical communication equipment have increased the reliability and security of tactical voice communications from the highest to the lowest levels of combat command. However, the complexities inherent to wireless data networks have prevented the reach of valuable data links from extending efficiently and reliably to the lowest levels of tactical command. This thesis attempts to quantify the performance of ... |
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| Comparison of the Noise Penalty of a Raman Amplifier Versus an Erbium-doped Fiber Amplifier for Long-haul Analog Fiber-optic Links |
17-Dec-2008 |
17 pages |
| Authors:
Preetpaul S Devgan; John F Diehl; Vincent J Urick; Keith J Williams; NAVAL RESEARCH LAB WASHINGTON DC
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| A Raman amplifier is compared to an erbium-doped fiber amplifier for a 14 km analog fiber-optic link requiring the amplifier pump at the end of the link. The noise penalty for each amplifier at a given photocurrent is measured and compared. An analytical expression comparing the analog metrics as a function of noise penalty and photocurrent for different amplifiers is derived and used. The Raman amplifier has a lower noise ... |
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| Studying Network Timing With Precision Packet Delay Measurements |
01-Dec-2008 |
23 pages |
| Authors:
Lee Cosart; SYMMETRICOM SAN JOSE CA
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| As the transmission of telecommunications data is increasingly reliant on new generation packet network transport, new methods of time and frequency transfer are required. While some of these methods are at the physical layer, many involve the network and data link layers and are affected by packet network behavior. Thus, it has become important to develop instrumentation and analysis techniques applicable to the study of packet latency and packet delay ... |
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| Phase Transfer for Radio Astronomy Interferometers, Over Installed Fiber Networks, Using a Round-Trip Correction System |
01-Dec-2008 |
11 pages |
| Authors:
R Davis; R McCool; M Bentley; S Garrington; R Spencer; B Anderson; MANCHESTER UNIV (UNITED KINGDOM)
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| The MERLIN telescope, based at Jodrell Bank, achieves coherent operation using a frequency standard transmitted over microwave links. This system is locally known as the Lband Link (LBL). The LBL uses pulses of RF carrier waves to transmit bi-directionally between two locations in a time-division-multiplexed system (TDM). Tests in the laboratory and astronomical observations have confirmed that the LBL detects changes of delay at approximately the 1-picosecond level over periods ... |
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| Development Of Frequency Transfer Via Optical Fiber Link at NICT |
01-Dec-2008 |
11 pages |
| Authors:
Mizuhiko Hosokawa; Motohiro Kumagai; Mihu Fujieda; Tadahiro Gotoh; NATIONAL INST OF INFORMATION AND COMMUNICATIONS TECHNOLOGY (NICT) TOKYO (JAPAN)
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| NICT in Japan has developed a radio frequency (RF) dissemination system using an optical fiber link. The phase noise induced during the transmission through the optical fiber is actively cancelled by a compensation system. A proving test has been conducted on the 114-km urban telecom optical fiber link in Tokyo. The transfer stability in the 10-18 level at an averaging time of 1 day was achieved. In the last few ... |
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| Enhancing Combat Survivability of Existing Unmanned Aircraft Systems |
Dec-2008 |
149 pages |
| Authors:
Kine S Tham; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| The importance of Unmanned Aircraft Systems (UAS) to warfighters has been growing. Each loss (regardless of whether the entire UAS or parts of it) has become more expensive and unaffordable in both an operational and monetary sense. An unmanned aircraft (UA) loss may mean that critical missions cannot be performed and millions of dollars of investments on the UA lost. As most existing UAS were designed to be inexpensive and ... |
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| Elementary Surveillance (ELS) and Enhanced Surveillance (EHS) Validation via Mode S Secondary Radar Surveillance |
23 APR 2008 |
|
| Authors:
Robert D. Grappel; Garrett S. Harris; Mark J. Kozar; Randall T. Wiken; MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB
|
 | This report presents a set of algorithms that may be employed to monitor the conformation and performance of Mode S avionics in aircraft equipped for the Elementary Surveillance (ELS) and Enhanced Surveillance (ERS) data link applications. The intended audience for this report is an engineering staff assigned the task of implementing a monitoring system used to determine ELS and EHS compliance. It is assumed that surveillance data and Mode S ... |
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| Performance Analysis of an Alternative Link-16/JTIDS Waveform Transmitted Over a Channel with Pulse-Noise Interference |
MAR 2008 |
85 pages |
| Authors:
Kok Kiang Cham; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
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| The Joint Tactical Information Distribution System (JTIDS) is a hybrid frequency-hopped, direct sequence 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 channel waveform but with a two-fold increase in data ... |
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| Mission Impact Analysis Visualization for Enhanced Situational Awareness |
MAR 2008 |
114 pages |
| Authors:
Sean C. Carroll; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT
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| This research effort examines the creation of mission impact analysis visualizations to enhance situational awareness. It focuses on using prefuse to create a visualization that allows the user to quickly understand the impact of the failure of any element needed directly or indirectly for a mission. The visualization correctly identifies the direct or indirect impact on physical requirements such as network links and servers as well as non-physical elements such ... |
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| Unmanned Aircraft Systems' Role In Network Centric Warfare |
04 FEB 2008 |
35 pages |
| Authors:
Duane T. Carney; ARMY WAR COLL CARLISLE BARRACKS PA
|
| Recent proliferation of Unmanned Aircraft Systems (UAS) has significantly affected combat operations. Current operational theaters serve as proving grounds for both programmed and experimental UAS; many are successfully supporting the commanders situational awareness requirements. Wartime commanders are increasing their requests for UAS. The Department of Defense's (DOD) subsequent actions to fulfill these requirements attest to their growing relevance. Like many of the technical capabilities fielded as part of DOD transformation, ... |
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| Measurement of Chromatic Dispersion using the Baseband Radio-Frequency Response of a Phase-Modulated Analog Optical Link Employing a Reference Fiber |
19 SEP 2007 |
20 pages |
| Authors:
Jason D. McKinney; John Diehl; NAVAL RESEARCH LAB WASHINGTON DC
|
| In this work we demonstrate a new technique for measuring the chromatic dispersion of an optical fiber using the baseband RF response of a phase-modulated analog optical link in concert with a well-characterized fiber that serves as a dispersion reference. We show that optical phase modulation provides increased measurement resolution and immunity to optical modulator bias-drift as compared to baseband methods utilizing optical intensity modulation. In addition, we provide a ... |
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| Impacts and Consequences of Non-Standard COTS C4I System Acquisition Upon Associated Programs of Record |
SEP 2007 |
83 pages |
| Authors:
Ted W. Huskey; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| In response to the Global War on Terror's data communication demands, Navy commands acquired COTS C4I Tactical Data Link equipment outside standard acquisition practices. This thesis analyzes the circumstance of the non-standard acquisition and fielding of COTS Data Link equipment impact upon similar capability Programs of Record using a case study of the Navy's acquisition of the Air Defense System Integrator (ADSI). Additionally, this thesis analyzes practices and philosophies that ... |
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| Guidance Material for Mode S-Specific Protocol Application Avionics |
04 JUN 2007 |
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| Authors:
R. D. Grappel; R. T. Wiken; MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB
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| This ATC report presents guidance material for the use of the "Ground-Initiated Comm. B" (GICB) register set contained in a Mode S transponder. The guidance material is intended to provide assistance for implementers of Mode S avionics installations. A common summary of the requirements and specifications for Mode S GICB transponder register data link applications is developed. While this ATC report focuses primarily on the "Elementary Surveillance" (ELS), "Enhanced Surveillance" ... |
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| TADIL TALES Templates: Modeling Tactical Data Links for Command and Control Training |
JUN 2007 |
13 pages |
| Authors:
Joe Sorroche; ASRC COMMUNICATION LTD KIRTLAND AFB NM DISTRIBUTED MISSION OPERATIONS CENTER
|
| The US Air Force Distributed Mission Operations (DMO) concept continues to be the most successful application of Modeling and Simulation (M&S) for warfighter training. The program extends beyond individual pilot or crew training to include the entire real world operations spectrum. One important component of DMO is Command and Control (C2) training. Until recently, DMO C2 training requirements were difficult to meet because there were no accurate tactical data link ... |
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| Concept Map Value Propagation for Tactical Intelligence |
JUN 2007 |
20 pages |
| Authors:
Richard Kaste; Eric Heilman; Robert Hoffman; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD
|
| Command and control analysts increasingly apply traditionally unassociated concepts to situation understanding. Techniques are needed to tailor knowledge acquisition resource allocation according to probable value of information, both inferring an answer to a question using knowledge at hand and quickening intelligence efforts to fill in gaps. Concept Maps (Cmaps) are a form of meaningful diagram that represents concepts as nodes, linked by specified relationships. This paper discusses research into methods ... |
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| Feasibility of a Dynamic Data Rate Satellite Link for Inmarsat |
JUN 2007 |
111 pages |
| Authors:
John F. Boseman; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| Inmarsat is a predominantly commercial satellite system fitted on most United States Navy surface vessels including: frigates, cruisers, destroyers, amphibious ships and mine sweepers. It is primarily used for telephone, fax, email, web browsing, and the Global Command and Control System (GCCS). Inmarsat, however, has a very limited data rate. For ships fitted with the latest modem upgrade, Inmarsat provides a meager 128 kbps for support of its numerous functions. ... |
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| Construction Operations Building Information Exchange (COBIE) |
Jun-2007 |
195 pages |
| Authors:
E W East; ENGINEER RESEARCH AND DEVELOPMENT CENTER CHAMPAIGN IL CONSTRUCTION ENGINEERING RESEARCH LAB
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| The Construction Operations Building Information Exchange (COBIE) specification denotes how information may be captured during design and construction and provided to facility operators. COBIE eliminates the current process of transferring massive amounts of paper documents to facility operators after construction has been completed. COBIE eliminates the need for post-hoc as-built data capture and helps to reduce operational costs. This report describes the background and process used to create and implement ... |
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| Unmanned Aircraft Pilot Medical Certification Requirements |
FEB 2007 |
14 pages |
| Authors:
Kevin W. Williams; FEDERAL AVIATION ADMINISTRATION OKLAHOMA CITY OK CIVIL AEROMEDICAL INST
|
| This research addressed the medical requirements necessary for unmanned aircraft (UA) pilots for successful flight in the National Airspace System (NAS). Given that an existing medical certification was recommended, the question of which class of certification to propose was based on the perceived level of risk imposed by the potential incapacitation of the UA pilot. A second-class medical certification was judged to be the most acceptable, considering that there were ... |
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| Unmanned Systems Roadmap 2007-2032 |
2007 |
189 pages |
| Authors:
DEPARTMENT OF DEFENSE WASHINGTON DC
|
| Today's military has seen an evolution in technology that is creating an entirely new capability to project power through the use of unmanned systems while reducing the risk to human life. The contributions of unmanned systems continue to increase. As of October 2006, coalition Unmanned Aircraft Systems (UASs), exclusive of hand-launched systems, had flown almost 400,000 flight hours in support of Operations Enduring Freedom and Iraqi Freedom, Unmanned Ground Vehicles ... |
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| Guidance and Navigation Software Architecture Design for the Autonomous Multi-Agent Physically Interacting Spacecraft (AMPHIS) Test Bed |
DEC 2006 |
147 pages |
| Authors:
Blake D. Eikenberry; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| The Autonomous Multi-Agent Physically Interacting Spacecraft (AMPHIS) test bed examines the problem of multiple spacecraft interacting at close proximity. This thesis contributes to this on-going research by addressing the development of the software architecture for the AMPHIS spacecraft simulator robots and the implementation of a Light Detection and Ranging (LIDAR) unit to be used for state estimation and navigation of the prototype robot. The software modules developed include: user input ... |
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| 120mm LOS-MP Line of Sight Multi-Purpose |
NOV 2006 |
19 pages |
| Authors:
Eric Scheper; Matt Hall; ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER PICATINNY ARSENAL NJ
|
| BRIEF OUTLINE: * Program Overview (Exit Criteria) * XM1069 Design (Process, Cartridge, Warhead, Fuze, Data Link) * XM1069 Testing (Warhead, Structural, Concrete Wall, Anti-Personnel) * CONCLUSION. |
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| JADE - An Experimenting in Distributed Simulation Based Joint Tactical Training |
01 SEP 2006 |
|
| Authors:
Ole M. Mevassvik; Karsten Brathen; Richard M. Gustavsen; NORWEGIAN DEFENCE RESEARCH ESTABLISHMENT KJELLER
|
| JADE, or Joint Air Defence Training Simulation, was an experiment conducted in Norway in March 2006 to explore whether connecting existing training simulators and operational systems is a suitable tool for joint tactical training. The embedded training capability of a Control and Reporting Centre, a naval tactical trainer and game-based fighter simulators located at three different sites were connected over a secure wide area network. Additionally, JADE was a test ... |
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| Propagation Modeling of Wireless Systems on Shipboard External Decks |
SEP 2006 |
|
| Authors:
Luis E. Gallo; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| Many on-board ship operations demand full radio coverage over the entire ship, not only indoor, but also from the interior spaces to the other decks. Onboard a ship, specifically in the upper decks, radio wave propagation is subjected to fading that would impede the quality and reliability of data links and communication. One example is the performance of unmanned aerial vehicle (UAV) data and communications links. The purpose of this ... |
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| Simulation Activities Using Gateway and Tactical Digital Information Links |
SEP 2006 |
|
| Authors:
Arthur Filippidis; Steve Blandford; Kate Foster; Gary Moran; DEFENCE SCIENCE AND TECHNOLOGY ORGANISATION EDINBURGH (AUSTRALIA) AIR OPERATIONS DIV
|
| Under the auspices of the Air Platform Connectivity Research Task Air 05/086, novel gateway, Tactical Digital Information Link (TADIL) and Network Centric Warfare simulation activities involving Australian Defence Force (ADF) platforms and Mission System Test-beds (MSTs) are currently in progress in the Air Operations Division. Several recent TADIL activities involve investigations using the Rosetta Data Link Gateway product from the ANZUS Alliance and Northrop Grumman's Dual Link Simulator with Extended ... |
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| Strong Optical Injection Locking of Edge-Emitting Lasers and Its Applications |
18 AUG 2006 |
158 pages |
| Authors:
Hyuk-Kee Sung; CALIFORNIA UNIV BERKELEY DEPT OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE
|
| Semiconductor lasers are essential components that enable high-speed long-haul communication and have been widely used for various applications in photonics technology. Semiconductor lasers under optical injection locking exhibit superior performance over free-running lasers and provide useful applications not achievable through the free-running lasers. The performance of injection-locked lasers has been found to be significantly improved with stronger injection. In this dissertation, the characteristics and applications of semiconductor lasers under strong ... |
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| Modulation Diversity for Chromatic Dispersion Compensation in Analog Photonic Links |
14 JUL 2006 |
18 pages |
| Authors:
Vincent J. Urick; Frank Bucholtz; NAVAL RESEARCH LAB WASHINGTON DC OPTICAL SCIENCES DIV
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| We present two solutions for chromatic dispersion compensation in analog photonic links based on modulation diversity. Both concepts are described in theory and demonstrated experimentally. The first, a modulation diversity receiver, on the other hand, is shown to be a completely passive device that adequately compensates for an arbitrary amount of chromatic dispersion in an analog fiber optic link. A band-limited design of the receiver is demonstrated, but essentially any ... |
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