| Time Series of RADARSAT-1 Fine Mode Images Using Sequential Coherent Target Monitoring Software |
OCT 2007 |
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| Authors:
David Wilson; MACDONALD DETTWILER AND ASSOCIA(MDA)SPACE MISSIONS RICHMOND (BRITISH COLUMBIA)
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 | Coherent Target Monitoring (CTM) is COTS software that was developed to detect the rate of land subsidence by using Synthetic Aperture Radar (SAR) repeat-pass interferometry applied to persistent scatterers in the scene. DRDC Ottawa has proposed to use the CTM software to produce a time-series of accurately co-registered SAR images and coherence maps that may be used for both non-coherent and coherent change detection. This capability within the CTM software ... |
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| Application of State-Estimation Techniques for Spatial, Temporal, and Polarization Diverse Waveforms |
OCT 2007 |
203 pages |
| Authors:
John W. Garnham; Jaime R. Roman; James M. Stiles; Wolfgang-Martin Boerner; SCIENCE APPLICATIONS INTERNATIONAL CORP SAN DIEGO CA
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 | A novel radar system design philosophy is presented in which the radar adapts in time as the functional mode and environment evolve. In that context, the main subsystems change to meet performance and functional requirements. Two key aspects of the concept proposed herein are the consideration of the receiver function as a parameter estimation problem, and the selection of the waveform to be transmitted as an optimization problem with information-theoretic ... |
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| Caffeine, Adenosine Receptors and Estrogen in Toxin Models of Parkinson's Disease |
OCT 2007 |
44 pages |
| Authors:
Michael A. Schwarzschild; MASSACHUSETTS GENERAL HOSPITAL BOSTON
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| Continued progress has been made toward each of the 3 Specific Aims (SAs) of our research project, Caffeine, adenosine receptors and estrogen in toxin models of Parkinson's disease (PD) . The overarching hypothesis of the project is that multiple environmental protectants and toxins interact to influence of the health of the dopaminergic neurons lost in PD. To that end we are characterizing the interplay between several environmental agents (pesticides, caffeine ... |
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| International Assessment of Research and Development in Brain-Computer Interfaces. WTEC Panel Report |
OCT 2007 |
235 pages |
| Authors:
Theodore W. Berger; John K. Chapin; Greg A. Gerhardt; Dennis J. McFarland; Jose C. Principe; Walid V. Soussou; Dawn M. Taylor; Patrick A. Tresco; WORLD TECHNOLOGY EVALUATION CENTER INC BALTIMORE MD
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| Brain-computer interface (BCI) research deals with establishing communication pathways between the brain and external devices. BCI systems can be broadly classified depending on the placement of the electrodes used to detect and measure neurons firing in the brain: in invasive systems, electrodes are inserted directly into the cortex; in noninvasive systems, they are placed on the scalp and use electroencephalography or electrocorticography to detect neuron activity. This WTEC study was ... |
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| Securing Wireless Local Area Networks with GoC PKI |
OCT 2007 |
58 pages |
| Authors:
J. Spagnolo; D. Cayer; NRNS INC OTTAWA (ONTARIO)
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| Defence R&D Canada led a project in which a wireless virtual private networking (VPN) architecture was set up in a test bed in the Network Information Operation (NIO) lab for 802.11/a/b/g communications. The goal of this initial work was to aid in developing a security policy for use of wireless local area networks (WLAN) in government enterprise networks. This report presents the results of follow-on work that leverages the Government ... |
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| Detecting Natural Versus Unnatural DNA |
OCT 2007 |
16 pages |
| Authors:
Carla Brodley; Lenore Cowen; Donna Slonim; Jonathan Eisen; TUFTS UNIV MEDFORD MA
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| We have developed computational pipeline that compares a target genome with related genomes and find regions that have been potentially engineered. Our pipeline compares the target genome with related genomes and finds "unique" genes that have no homologs. These "unique genes" can then be tested for other criteria like DNA composition to narrow down the list of potential engineered genes. |
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| Japan-U.S. Relations: Issues for Congress |
27 SEP 2007 |
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| Authors:
Emma Chanlett-Avery; Mark E. Manyin; William H. Cooper; LIBRARY OF CONGRESS WASHINGTON DC CONGRESSIONAL RESEARCH SERVICE
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| The post-World War II U.S.-Japan alliance has long been an anchor of the U.S. security role in East Asia. The alliance, with its access to bases in Japan, where about 53,000 U.S. troops are stationed, facilitates the forward deployment of U.S. military forces in the Asia-Pacific, thereby undergirding U.S. national security strategy. For Japan, the alliance and the U.S. nuclear umbrella provide maneuvering room in dealing with its neighbors, particularly ... |
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| RADAR Imaging Transformation for Heads Up Display Utility |
SEP 2007 |
27 pages |
| Authors:
Brian Wilson; Nikola Subotic; ALTARUM INST ANN ARBOR MI
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| The following report discusses the display and sensor requirements for a heads up display (HUD) capable of presenting a 3-Dimensional (3-D) scene to a pilot during instrument landing that provides data indicative of barriers and obscurations in the flight path and intended landing area. The necessary equations for relating common electro-optic sensor parameters to the equivalent RADAR parameterization are provided such that a cross-sensor analysis can be performed to determine ... |
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| Computer Models of the Human Body Signature for Sensing Through the Wall Radar Applications |
SEP 2007 |
56 pages |
| Authors:
Traian Dogaru; Lam Nguyen; Calvin Le; ARMY RESEARCH LAB ADELPHI MD
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| This technical report presents numerical simulations of the human body radar signature, with application to sensing through the wall (STTW) scenarios. We utilize the Finite Difference Time Domain (FDTD) modeling technique to compute the electromagnetic scattering from realistic human body models. We analyze the radar cross section (RCS) of the human body in different configurations as a function of aspect angle, frequency, and polarization, drawing important conclusions in terms of ... |
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| Autonomous Non-Linear Classification of LPI Radar Signal Modulations |
SEP 2007 |
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| Authors:
Taylan O. Gulum; NAVAL POSTGRADUATE SCHOOL MONTEREY CA CENTER FOR JOINT SERVICES ELECTRONIC WARFARE
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| In this thesis, an autonomous feature extraction algorithm for classification of Low Probability of Intercept (LPI) radar modulations is investigated. A software engineering architecture that allows a full investigation of various preprocessing algorithms and classification techniques is applied to a database of important LPI radar waveform modulations including Frequency Modulation Continuous Waveform (FMCW), Phase Shift Keying (PSK), Frequency Shift Keying (FSK) and combined PSK and FSK. The architecture uses time-frequency ... |
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| Identifying Roads and Trains Under Canopy Using Lidar |
SEP 2007 |
128 pages |
| Authors:
Robb E. Owens; Fermin Espinoza; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
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| LIDAR data collected from four geographic regions are studied to determine the feasibility of reliably identifying roads and trails hidden under dense jungle and forest canopies. The four analyzed regions include the Elkhorn Slough in Central California (2005), Kahuku Training Area on the North side of Oahu Island in Hawaii (2005), La Selva Biological Station near Puerto Viejo de Sarapiqui, Costa Rica (1997), and Cougar Mountain Park in Bellevue, Washington ... |
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| HF Over-the-Horizon Radar System Performance Analysis |
SEP 2007 |
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| Authors:
Bin-Yi Liu; NAVAL POSTGRADUATE SCHOOL MONTEREY CA CENTER FOR JOINT SERVICES ELECTRONIC WARFARE
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| The basic concept of the structure and properties of the ionosphere are discussed to explain how the performance of the over-the-horizon radar (OTHR) system is affected. An overview of the OTHR system characteristics and performance are presented along with some applications currently used around the world, including their geographic location and historical background. The waveforms used for the OTHR systems include simple pulse, pulse Doppler, phased-coded pulse, frequency modulated continuous ... |
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| A Smart Climatology of Evaporation Duct Height and Surface Radar Propagation in the Indian Ocean |
SEP 2007 |
159 pages |
| Authors:
Katherine L. Twigg; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
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| Surface electromagnetic propagation over the ocean is highly sensitive to near-surface atmospheric variability, particularly the height of the evaporation duct. Seasonal variation in near-surface metrological factors and sea surface temperatures impact the evaporation duct height (EDH). Present U.S. Navy EDH climatology is based on sparse ship observations over a relatively short time period and an outdated evaporation duct (ED) model. This EDH climatology does not utilize smart, or modern, climatology ... |
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| Evaluation of Simulated RADARSAT-2 Polarimetry Products |
SEP 2007 |
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| Authors:
Chen Liu; Paris W. Vachon; DEFENCE RESEARCH AND DEVELOPMENT CANADA OTTAWA (ONTARIO)
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| This report presents an evaluation of simulated RADARSAT-2 polarimetry products. The RSAT2SIMU software developed by MDA simulates RADARSAT-2 products from Environment Canada (EC) CV-580 synthetic aperture radar (SAR) single-look complex (SLC) data by increasing the noise floor and degrading the image resolution. The evaluation includes observations of the reduction in the probability of missed detection for polarimetric relative to single channel radar operation for ship detection, and the potential benefit ... |
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| The Effects of Signal and Image Compression of Sar Data on Change Detection Algorithms |
SEP 2007 |
110 pages |
| Authors:
Kiran Shenoy; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH GRADUATE SCHOOL OF ENGINEERING AND MANAGEMENT
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| With massive amounts of SAR imagery and data being collected, the need for effective compression techniques is growing. One of the most popular applications for remote sensing is change detection, which compares two geo-registered images for changes in the scene. While lossless compression is needed for signal compression, the same is not often required for image compression. In almost every case the compression ratios are much higher in lossy compression ... |
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| Radar System Characterization Extended to Hardware-in-the-Loop Simulation for the Lab-Volt (Trademark) Training System |
SEP 2007 |
196 pages |
| Authors:
Oscar C. Mayhew; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
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| Modeling RADAR signals in software allows the testing of potential electronic counter measures and electronic counter counter measures without the associated RADAR hardware and test facilities. Performing a characterization process on a real world RADAR system reveals all imperfections within the system. The Lab-Volt (TM) RADAR system served as the characterized real world RADAR system. The characterization process consisted of measurements at selected front panel locations on the Lab-Volt (TM) ... |
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| Measurement of Non-Linear Internal Waves and Their Interaction with Surface Waves Using Coherent Real Aperture Radars |
SEP 2007 |
9 pages |
| Authors:
William J. Plant; WASHINGTON UNIV SEATTLE APPLIED PHYSICS LAB
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| The objectives of the grant were to use a coherent real aperture radar to 1) study the interaction of surface waves with internal wave, the process that is responsible for the synthetic aperture radar (SAR) imagery of internal waves; 2) Determine the extent to which Doppler velocity modulations observed by coherent radars, including along-track interferometric SARs, are faithful representations of surface currents generated by internal waves; and 3) track the ... |
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| Material Identification Algorithm |
SEP 2007 |
14 pages |
| Authors:
Elizabeth Bleszynski; Marek Bleszynski; Thomas Jaroszewicz; MONOPOLE RESEARCH THOUSAND OAKS CA
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| We developed numerical techniques for simulating radar returns from large realistic scenes composed of uneven ground, trees, and reflecting objects. The simulation includes effects of ionospheric dispersion on the radar pulses. We developed an integral-equation code and performed numerical simulation of radiation for small-loop large-current antennas, with loops radiating in open space or partly shielded by enclosures of various material properties. The code implements regularization methods for handling of subwavelength ... |
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| Image Resolution Computation for Ultra-Wideband (UWB) Synchronous Impulse Reconstruction (SIRE) Radar |
SEP 2007 |
26 pages |
| Authors:
Lam Nguyen; ARMY RESEARCH LAB ADELPHI MD SENSORS AND ELECTRON DEVICES DIRECTORATE
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| This report describes the approach used to compute the down-range and cross-range resolution for the U.S. Army Research Laboratory synchronous impulse reconstruction (SIRE) radar. The results determine the upper bound in term of resolution that the radar can achieve (for targets along the center line of the physical receiving antenna array). These results are needed for the computation of the calibration factor for this radar. |
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| A Survey of Terrain Modeling Technologies and Techniques |
Sep-2007 |
153 pages |
| Authors:
Nick Gorkavyi; Jerry Snyder; J D Lashlee; ENGINEER RESEARCH AND DEVELOPMENT CENTER ALEXANDRIA VA TOPOGRAPHIC ENGINEERING CENTER
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| Test planning, rehearsal, and distributed test events for Future Combat System (FCS) require rapid generation of high-fidelity synthetic environments. These environments consist of high resolution synthetic scenes of test and training images, which use high and low resolution digital terrain surface models, 2-D and 3-D smiace objects and other geospatial data to replicate site conditions. The largest component of developing synthetic 3-D scenes is the commercially available Interferometric Synthetic Aperture ... |
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| Optimal Procurement Mechanisms for Divisible Goods with Capacitated Suppliers |
31 AUG 2007 |
24 pages |
| Authors:
Garud Iyengar; Anuj Kumar; COLUMBIA UNIV NEW YORK DEPT OF INDUSTRIAL ENGINEERING AND OPERATIONS RESEARCH
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| The literature on procurement auctions typically assumes that the suppliers are uncapacitated (see, e.g. Dasgupta and Spulber, 1990; Che, 1993). Consequently, these auction mechanisms award the contract to a single supplier. We study mechanism design in a model where suppliers have limited production capacity, and both the marginal costs and the production capacities are private information. We provide a closed form solution for the revenue maximizing direct mechanism when the ... |
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| A New Approach to Radar Waveform Design |
24 AUG 2007 |
16 pages |
| Authors:
Irina Gladkova; CITY UNIV OF NEW YORK RESEARCH FOUNDATION
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| We have extended Wilcox's classical result to address an issue of acceptable approximation of the "ideal" ambiguity surface in the area of interest. We have considered a problem of constructing a waveform with minimal volume under the ambiguity surface in a certain given area. In case when the region of interest is a circle centered at the origin, we have proven that Hermite waveform is a solution to such optimization ... |
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| Time-Frequency Filtering and Carrier-Phase Ambiguity Resolution for GPS-Based TSPI Systems in Jamming Environment |
15 AUG 2007 |
33 pages |
| Authors:
Ying-Cheng Lai; ARIZONA STATE UNIV TEMPE DEPT OF MATHEMATICS
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| In the project period, we developed a class of time-frequency filters based on the combination of the empirical-mode decomposition (EMD) method and a general blind-source separation (BSS) algorithm. We obtained evidence that the method is able to separate jamming from the GPS signal for JSR up to 45dB. A forefront research area in signal processing is particle filters. The idea is to evolve the probability distribution of a signal by ... |
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| Geospace Plasma Dynamics: Final Report (2002-2007) |
14 AUG 2007 |
30 pages |
| Authors:
Bamandas Basu; John R. Jasperse; AIR FORCE RESEARCH LAB HANSCOM AFB MA SPACE VEHICLES DIRECTORATE
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| Radar measurements of backscatter from plumes extending above the bottom side spread-F layer correlated well with observations of equatorial plasma bubbles in quiet conditions with lower correlation between scintillation and observations of plasma bubbles. DMSP satellites and the ROCSAT-1 satellite showed significantly fewer occurrences of plasma bubbles than expected near the west coast of South America and an east-west chain of GPS receivers confirms a steep longitudinal gradient in EPB ... |
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| Studies on Radar Sensor Networks |
08 AUG 2007 |
145 pages |
| Authors:
Qilian Liang; TEXAS UNIV AT ARLINGTON DEPT OF ELECTRICAL ENGINEERING
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| During the period of 12/8/2006-6/30/2007, we performed the following studies in radar sensor network: (1) Sense-through-foliage target detection using UWB radar sensor network based on real-world data; (2) Foliage clutter modeling using UWB radars; (3) Outdoor UWB channel modeling based on field data; (4) Multi-target detection using radar sensor networks (theoretical studies); (5) SVD-QR and graph theory for MIMO channel selection; (6) Image fusion using radar sensor network; (7) Performance ... |
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| Power and Thermal Technologies for Air and Space. Delivery Order 0003: Development of High-Performance Solid Oxide Fuel Cell (SOFC) Technology for Remote Base Applications |
AUG 2007 |
19 pages |
| Authors:
Haiming Xiao; Thomas Reitz; UES INC DAYTON OH
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| The longevity performance of a tape cast SOFC using a LSM-based cathode was studied for 500 hours at various power densities. Polarization experiments indicated an enhancement in performance during the long-term polarization. Electrochemical Impedance Spectroscopy (EIS) experiments were used to deconvolute the component impedances in the cell. The EIS data indicated that the vast majority of cell activation was associated with a single semi-circular feature which occurred in the low ... |
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| Molecular Identification of the Biowarfare Simulant Serratia Marcescens From a 50-Year-Old Munition Buried at Fort Detrick, Maryland |
AUG 2007 |
6 pages |
| Authors:
Chris A. Whitehouse; Carson Baldwin; Leonard Wasieloski; John Kondig; John Scherer; ARMY MEDICAL RESEARCH INST OF INFECTIOUS DISEASES FORT DETRICK MD
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| Serratia marcescens are gram-negative bacteria that were often used by the U.S. military and others to track movement of bacteria in the environment. As part of ongoing construction at Fort Detrick, what appeared to be a small bomblet was found buried in the ground at the site of an old test grid. A sample of clear, straw-colored liquid was aseptically removed from the plastic reservoir and routine culture on standard ... |
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| Satellite Formation Design for Space Based Radar Applications |
30 JUL 2007 |
49 pages |
| Authors:
Steven Tragesser; COLORADO UNIV AT COLORADO SPRINGS
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| There is much interest in relative formations in low Earth orbit for many different applications including distributed aperture systems and communications. Methods have been developed to create relative trajectories that do not fight the natural motion caused by oblateness perturbations. The formulas for these J2 Invariant formations are recast in terms of relative orbit parameters that facilitate formation design. Impulsive maneuver schemes have also been developed for relative trajectories but ... |
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| Dynamics of Hyperthermal Collisions of O(3P) with CO (Preprint) |
17 JUL 2007 |
59 pages |
| Authors:
Amy L. Brunsvold; Hari P. Upadhyaya; Jianming Zhang; Russell Cooper; Timothy K. Minton; Matthew Braunstein; James W. Duff; MONTANA STATE UNIV BOZEMAN DEPT OF CHEMISTRY AND BIOCHEMISTRY
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| The dynamics of O(3P) + CO collisions at a hyperthermal collision energy of 83 kcal mol(-1) have been studied with a crossed molecular beams experiment and with quasiclassical trajectory calculations on computed potential energy surfaces. In the experiment, a rotatable mass spectrometer detector was used to monitor inelastically and reactively scattered products as a function of velocity and scattering angle. From these data, center-of-mass (c.m.) translational energy and angular distributions ... |
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| Israeli-Arab Negotiations: Background, Conflicts, and U.S. Policy |
09 JUL 2007 |
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| Authors:
Carol Migdalovitz; LIBRARY OF CONGRESS WASHINGTON DC CONGRESSIONAL RESEARCH SERVICE
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| After the first Gulf war, in 1991, a new peace process consisting of bilateral negotiations between Israel and the Palestinians, Jordan, Syria, and Lebanon achieved mixed results. Milestones included the Israeli-Palestine Liberation Organization (PLO) Declaration of Principles (DOP) of September 13, 1993, providing for Palestinian empowerment and some territorial control, the Israeli-Jordanian peace treaty of October 26, 1994, and the Interim Self-Rule in the West Bank or Oslo II accord ... |
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| A Line Search Multigrid Method for Large-Scale Convex Optimization |
03 JUL 2007 |
30 pages |
| Authors:
Zaiwen Wen; Donald Goldfarb; COLUMBIA UNIV NEW YORK DEPT OF INDUSTRIAL ENGINEERING AND OPERATIONS RESEARCH
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| We present a line search multigrid method based on Nash's MG/OPT multilevel optimization approach for solving discretized versions of convex infinite dimensional optimization problems. Global convergence is proved under fairly minimal requirements on the minimization method used at all grid levels. In particular, our convergence proof does not require that these minimization, or so-called (smoothing) steps, which we interpret in the context of optimization, be taken at each grid level ... |
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| Embedded Millimeter Wave Photonic Crystals as Processing Elements in Shipboard Superstructures |
JUL 2007 |
13 pages |
| Authors:
Dennis W. Prather; DELAWARE UNIV NEWARK
|
| The ability to rapidly and accurately detect signals is essential in the modern warfare environment. However, the ever increasing use of the spectrum places great demand on current technology and, requires significant technological developments to overcome current limitations. Also, the nearly ubiquitous miniaturization of military systems requires a concomitant reduction in the size of radiating apertures. Therefore, in order to deal with these challenges, advanced artificial materials are used, namely, ... |
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| Geophysical Surveys for Assessing Levee Foundation Conditions, Sacramento River Levees, Sacramento, CA |
JUL 2007 |
61 pages |
| Authors:
Jose L. Lipis; Eric W. Smith; Ryan E. North; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS GEOTECHNICAL AND STRUCTURES LAB
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| Effective flood and coastal storm emergency response depends on the ability of emergency managers to obtain information on the condition of flood damage reduction structures in near-real time. This report describes the results of a series of geophysical investigations performed to determine the potential of geophysical methods to provide supplemental geologic data between existing borings in a rapid fashion in an area of complex geology located along the toe of ... |
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| Technical Note on Scale Conversion for the Synchronous Impulse Reconstruction (SIRE) Radar |
JUL 2007 |
18 pages |
| Authors:
Kenneth Ranney; Lam Nguyen; Anders Sullivan; ARMY RESEARCH LAB ADELPHI MD SENSORS AND ELECTRON DEVICES DIRECTORATE
|
| This technical note describes a calibration method used to convert measurements obtained with the U.S. Army Research Laboratory synchronous impulse reconstruction (SIRE) radar from an integer scale to an absolute, radar cross section (RCS) scale. The required RCS reference point is obtained from highly accurate solutions of Maxwell's equations for a modeled reference target and scene. Electrical characteristics of this modeled target and scene are carefully selected to match those ... |
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| Technical Note on Scale Conversion for the Synchronous Impulse Reconstruction (SIRE) Radar, a Second Method |
JUL 2007 |
18 pages |
| Authors:
Kenneth Ranney; Lam Nguyen; Anders Sullivan; ARMY RESEARCH LAB ADELPHI MD SENSORS AND ELECTRON DEVICES DIRECTORATE
|
| This technical note describes a calibration method used to convert measurements obtained with the U.S. Army Research Laboratory (ARL) synchronous impulse reconstruction (SIRE) radar from an integer scale to an absolute, radar cross section (RCS) scale. The required RCS reference point is obtained from highly accurate solutions of Maxwell's equations for a modeled reference target and scene. Electrical characteristics of this modeled target and scene are carefully selected to match ... |
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| Indirect Dominant Mode Rejection: A Solution to Low Sample Support Beamforming |
JUL 2007 |
12 pages |
| Authors:
Emesto L. Santos; Michael D> Zoltowski; Muralidhar Rangaswamy; PURDUE UNIV LAFAYETTE IN SCHOOL OF ELECTRICAL AND COMPUTER ENGINEERING
|
| The work developed and described in this technical report deals with the problem of providing a statistical model of the backscattering from lake surface for low-grazing angle and high resolution radar systems. First described is a statistical analysis of the amplitude of the high-resolution polarimetric data characterized by different radar looking directions with respect to the wind blowing directions. Then, based on the electromagnetic two-scale model, analyzed were both the ... |
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| A Partnership Training Program in Breast Cancer Research Using Molecular Imaging Techniques |
JUL 2007 |
55 pages |
| Authors:
Paul C. Wang; HOWARD UNIV WASHINGTON DC
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| In the second year five faculty members and a research assistant were further trained in molecular imaging of breast cancer through seminars and workshops and are currently conducting two research projects with the faculty at Johns Hopkins University. We have perfected the technique of constructing a dual imaging probe for MRI and fluorescent imaging by linkage of near-infrared fluorescently labeled transferring on the surface of contrast agent encapsulated cationic liposomes. ... |
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| Human Factors Evaluation of the g-MAV Micro-Air-Vehicle |
JUL 2007 |
66 pages |
| Authors:
Rodger A. Pettitt; Jeffrey Williams; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD HUMAN RESEARCH AND ENGINEERING DIRECTORATE
|
| This study was conducted by the U.S. Army Research Laboratory's Human Research and Engineering Directorate in support of the Soldier Battle Lab's (SBL) micro-air vehicle (MAV) Advanced Concept and Technology Demonstration (ACTD). The MAV ACTD was a 4-year program consisting of requirements definition, technology development, integration, demonstrations, and assessments. The primary purpose of the study was to conduct a comprehensive human factors evaluation of the gas-powered version MAV (g-MAV) system. ... |
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| An Experimental Testbed for Tactical Command and Control |
30 JUN 2007 |
11 pages |
| Authors:
Alex Davis; Dan Fu; Alexander Sarnacki; John Rushing; STOTTLER HENKE ASSOCIATES INC SAN MATEO CA
|
| Recent concepts in the field of command and control "C2", such as Power to the Edge and Network-Centric Warfare, have indicated the need for a testbed for experimentation. We describe a gaming testbed, populated by realistic synthetic agents, for modeling the complex human interactions comprising C2 structures, and for exploring the effectiveness of C2 concepts in a variety of tactical circumstances. A testbed for experimentation with C2 concepts must be ... |
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| Potential Impacts of Ultra-High-Pressure (UHP) Technology of National Fire Protection Agency (NFPA) Standard 403 (POSTPRINT) |
25 JUN 2007 |
9 pages |
| Authors:
Kenneth R. Grosskopf; Jennifer L. Kalberer; APPLIED RESEARCH ASSOCIATES INC TYNDALL AFB FL
|
| Ultra-high-pressure (UHP) technology as well as compressed air foam (CAF) and combined agent fire fighting systems (CAFFS)have proven to enhance the performance of fire fighting equipment using water and aqueous film forming foam(AFFF). UHP systems are capable of producing small water droplets at high velocity. As droplet size is reduced, surface area relative to mass increases, improving heat transfer. Smaller droplets however, experience greater drag, reducing throw distance. Findings indicate ... |
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| Integrated Thermal Modules for Cooling Silicon and Silicon Carbide Power Modules |
11 JUN 2007 |
32 pages |
| Authors:
G. L. Roderick; Terence Burke; Ghassan Khalil; TACOM RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI
|
| Integrated Thermal Modules (ITMs) are being developed to cool power modules with high-temperature fluids. Three dimensional finite element method analyses, bench tests, and motor tests comprise the program. The ITMs, in place of standard heatsinks, use a highly conductive pyrolytic graphite to passively cool power modules. Initial results show that even simple ITMs can lower chip temperatures by 20 deg. C and 10 deg. C with engine oil and propylene ... |
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| Very Fast Algorithms and Detection Performance of Multi-Channel and 2-D Parametric Adaptive Matched Filters for Airborne Radar |
05 JUN 2007 |
36 pages |
| Authors:
Jr. Marple S. L.; Phillip M. Corbell; Muralidhar Rangaswamy; OREGON STATE UNIV CORVALLIS DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
|
| In a seminal paper published in 2000, two algorithmic versions of the multichannel parametric adaptive matched filter (PAMF) applied to space-time adaptive processing (STAP) in an airborne radar application were shown to achieve superior test detection statistics over the conventional adaptive matched filter (AMF), which uses a non-parametric approach to estimate the detection weight vector. In fact, the performance of the PAMF approach is very close to the ideal matched ... |
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| Pre-X Experimental Re-Entry Lifting Body: Design of Flight Test Experiments for Critical Aerothermal Phenomena |
01 JUN 2007 |
19 pages |
| Authors:
Paolo Baiocco; CENTRE NATIONAL D'ETUDES SPATIALES TOULOUSE (FRANCE)
|
| Atmospheric glided re-entry is one of the main key technologies for future space vehicle applications. In this frame Pre-X is the CNES proposal to perform in-flight experimentation mainly on reusable thermal protections, aero-thermo-dynamics and guidance to secure the second generation of re-entry X vehicles. This paper describes the system principles and main aerothermodynamic experiences currently foreseen on board the vehicle. A preliminary in-flight experimentation and measurement plan has been assessed ... |
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| Integrated End-to-End Radar Signal and Data Processing with Over-Arching Knowledge-Based Control |
01-Jun-2007 |
25 pages |
| Authors:
Gerard T Capraro; CAPRARO TECHNOLOGIES INC UTICA NY
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| Use of Agent-Based Modeling in Selecting a Homeland Sensor Network System Concept |
01-Jun-2007 |
25 pages |
| Authors:
Thomas Lee; Lee Adler; Ashby Hall; Alvin Murphy; Alan Thomas; NAVAL SURFACE WARFARE CENTER DAHLGREN VA
|
| This briefing looks at proposed options for dealing with DoD surveillance capability gaps that currently exist in the continental US (CONUS) through an integration of military and civilian sensors. The scope of this analysis is constrained to Northeast US. |
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| Voice and Video Capacity of a Secure Wireless System |
JUN 2007 |
114 pages |
| Authors:
Jason R. Seyba; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT
|
| Improving the security and availability of secure wireless multimedia systems is the purpose of this thesis. Specifically, this thesis answered research questions about the capacity of wireless multimedia systems and how three variables relate to this capacity. The effects of securing the voice signal, real-time traffic originating foreign to a wireless local area network and use of an audio-only signal compared with a combined signal were all studied. The research ... |
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| Characterization of High Altitude Turbulence for Air Force Platforms |
JUN 2007 |
7 pages |
| Authors:
Frank H. Ruggiero; Joseph A. Werne; Alex Mahalov; Basil Nichols; Donald E. Wroblewski; AIR FORCE RESEARCH LAB HANSCOM AFB MA SPACE VEHICLES DIRECTORATE
|
| The Air Force has an urgent need to characterize and predict high-altitude (z > 10 km MSL) mechanical and optical turbulence. Mechanical turbulence will adversely impact both manned and unmanned reconnaissance and surveillance aircraft. Optical turbulence affects the propagation of light through the atmosphere and adversely affects the phase and power of a laser beam, thereby reducing the effectiveness of directed energy weapon and communication systems. At high altitudes both ... |
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| Iran and Strategic Power Projection: The Iran-Iraq War as a Foundation of Understanding |
JUN 2007 |
62 pages |
| Authors:
Darric M. Knight; ARMY COMMAND AND GENERAL STAFF COLL FORT LEAVENWORTH KS SCHOOL OF ADVANCED MILITARY STUDIES
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| This monograph attempts to provide the reader with an understanding of the dynamics and rational context for Iranian strategic power projection in the 21st century. Using the Iran-Iraq War as a lens through which to examine Iran during a stressful conventional conflict, the research illustrates a number of characteristics and trends still representative of the regime today. In Muslim nations, particularly Iran, Islam is thoroughly ingrained in diplomatic/political, information, military, ... |
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| Combined Joint Task Force-Horn of Africa: Winning the War on Terror with Information Engagement |
JUN 2007 |
59 pages |
| Authors:
Michelle M. Garcia; ARMY COMMAND AND GENERAL STAFF COLL FORT LEAVENWORTH KS SCHOOL OF ADVANCED MILITARY STUDIES
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| Combined Joint Task Force-Horn of Africa (CJTF-HOA) has developed a course of action (COA) to win the Global War on Terrorism (GWOT) in the Horn of Africa. Because of the mission, the resources available to the task force, and the nature of the conflict, the command chose a COA that uses Information Operations (IO) as the decisive strategy. Specifically, they have focused on the IO task of Information Engagement to ... |
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| Containment: A Viable Strategy for Success in the GWOT |
JUN 2007 |
69 pages |
| Authors:
Jr Taylor Robert J.; ARMY COMMAND AND GENERAL STAFF COLL FORT LEAVENWORTH KS SCHOOL OF ADVANCED MILITARY STUDIES
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| The purpose of this monograph is to investigate the nature of militant Islam in the context of a global ideological threat; to further examine the strategic concepts associated with the theory of containment developed to win the Cold War; and propose an alternative national strategy of containment to successfully execute the Global War on Terrorism (GWOT). |
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