The Air Force Research Laboratory has promulgated the geometrical design of a miniature airplane denoted the Generic Micro Aerial Vehicle (GENMAV). This design is intended to serve as a...

A methodology for measuring skin friction (also known as wall shear) in complex flows typical of those inside supersonic-combustion ramjet (scramjet) engines has been developed....

Aminiaturized Global Positioning System (GPS) antenna array is being developed for use on aircraft on which the room available for installation of this or any other equipment is...

Briefs: Physical Sciences
Biologically Inspired Processing of Image and Sound Data

A report describes progress in a research program oriented toward developing artificial-intelligence capabilities for processing images and sounds in changing environments. This research focuses on extending the state of the art in mid-level processing of visual and auditory signals,...

Brijot Imaging Systems, Orlando, FL, has introduced the BIS-WDS® GEN 2 object detection and people screening system that provides security officials with an effective method of detecting and locating...

The Owl® and Prowler® night vision systems from B.E. Meyers & Co., Redmond, WA, can couple to 35-mm, CCD, and digital cameras along with C-Mount and 35-mm objective lenses, telescopes, microscopes, and...

Aptima, Inc., Woburn, MA, has announced the DDD 4.0 desktop simulation software for training military and civilian teams. DDD can model a range of environments, including AWACS air battle management,...

Products
Privacy Filters

3M, St. Paul, MN, has introduced an expanded line of the 3M™ Privacy Filters for laptop computers and LCD monitors to make data visible only to persons directly in front of the screen. The microlouver technology works...

Products
Notebook/Tablet PC

GETAC, Lake Forest, CA, has announced the V100 convertible PC featuring an LCD screen that instantly transforms from a notebook into a tablet PC. The portable V100 features ultra-quiet fanless design and includes a range of standard features, including a 10.4" screen, power-saving 1.2 GHz Intel® Core™ Duo...

Products
Mobile Communications Systems

NEC Unified Solutions, Irving, TX, has announced its Mobile Voice and Data Unit, a mobile communications system that enables secure communications during disaster recovery. The system provides wireless voice, data, and video communications to government agencies and first responders during emergency situations. The...

The benefits of hybrid electric vehicles have been recognized by the U.S. Army and other military services. As a consequence, hybrid vehicles are being considered as future combat and tactical...

In the August issue of Defense Tech Briefs, we highlighted NASA’s Altair/Predator B unmanned aerial vehicle (UAV) for Earth science missions. A lot has happened in the past two months, so we’re...

Developed in 1999 under the auspices of the European Space Agency, SpaceWire answered a longstanding spaceflight problem: no standard, high-speed communications protocol existed for flight...

Acquiring data from sensors, transporting the data, and then archiving it for future reference has changed dramatically over the last few years. The...

Briefs: Information Technology
The Dataflow Interchange Format for Designing DSPs

The dataflow interchange format (DIF) is a conceptual framework for helping designers of digital signal-processing (DSP) systems to integrate diverse dataflow models, dataflow techniques, DSP-design software tools, DSP software libraries, and embedded processing platforms. Somewhat more...

Asystem of scientific instrumentation and data-processing equipment has been assembled for research and education in turbulence, mixing, and chemical reactions (especially combustion) in...

Briefs: Electronics & Computers
Variable-Data-Rate Speech Encoder

Avariable-data-rate (VDR) speech encoder has been designed to be interoperable with, and eventually to supplant, the many different voice encoders now used in military communication systems. Because these...

A n apparatus that includes two optical parametric chirped pulse amplification stages has been built as a means of generating few-cycle, common-envelope (CE)-phase-stable,...

Fiber-optic lasers of a proposed type would serve as sources of coherent radiation at frequencies between 0.5 and 4.0 THz and output power levels ≥100 mW. In the original application...

Briefs: Photonics/Optics
Research on Quantum Communication Repeaters

A program of research during the years 2001 through 2006 was devoted to building theoretical and practical foundations for the development of quantum repeaters as means of overcoming losses of photons in long-distance quantum communication systems. The idea underlying this research was to investigate...

Alloys are being developed for nozzles of hypersonic wind tunnels to be used in testing components of future hypersonic missiles, aircraft, and space transportation systems. The nozzle components...

A n experimental study has shown that the AC short-term dielectric breakdown potential of material specimens consisting of polyhedral oligomeric silsesquioxane (POSS) nanoparticles...

Afamily of improved encapsulating materials for protecting underwater acoustic sensors has been invented. These materials could also be used for encapsulation or protective coating of...

Briefs: Materials
Castable, Relatively Stiff Acoustic-Damping Materials

A recently invented family of acoustic-damping materials offers advantages over prior acoustic-damping materials:

Several novel methods of detecting landmines and other buried explosive devices have been proposed and are subjects of continuing research. The use of trained dogs has been shown to be an...

All-dielectric, non-electronic, photonicassisted front ends are being developed as alternatives to traditional metal antennas and the associated metal connections and input electronic...

A three-dimensional (3D) defocusing liquid-crystal-particle thermometry and velocimetry (3DDLCPTV) system has been designed and constructed (but not yet operated) for use in...

An improved method has been devised for defending a server or other computer against a code-injection attack, in which an attacker exploits a hardware or software vulnerability to inject...

Briefs: Information Technology
Some Advances in Digital-Image Forensics

A program of research in the forensic analysis of digital images has yielded several proposed techniques for automated image-data processing to answer questions concerning the source, authenticity, and integrity of a given image or set of images. The need for such techniques arises because the ease with...

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