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Briefs
Electronics & Computers

Front-End Mixed-Signal Receiver on a Chip

A mixed-signal receiver on a chip (RoC) now undergoing development is intended to be a prototype of the front ends of lightweight, compact, low-power, relatively inexpensive heterodyne radio...

Articles
Aerospace

WIN-T: The Warfighter's Communications Backbone for Today and Tomorrow

The battlefield of the future will integrate all elements into one networked force, enabling communication among soldiers and commanders on the land, at sea, in the air,...

Briefs
Software

A Predictive Model for Cognitive Radio

A computational model that predicts effects of changing operational parameters of a cognitive radio has been developed as part of continuing research on cognitive / software - defined radio (C/SDR)...

Briefs
Materials

Metamaterials for Advanced Microwave Antennas

A report discusses a research and development project that has made contributions to the art of metamaterials for directing electromagnetic radiation at frequencies of the order of several gigahertz. The next-generation metamaterials expected to emerge from this and related projects could enormously...

Articles
RF & Microwave Electronics

Open-Standard Multicomputers Address Next-Generation Multi-Function Radar Applications

Next-generation radar applications will drive performance demands that will have architectural implications for radar computing and electronics. Advanced...

Briefs
Photonics/Optics

Heterodyne RF/Optical Links Utilizing Integrated Photonics

A program of research and development has been directed toward the goals of demonstrating (1) ultra-low-noise communication links in which information is conveyed by phase-modulated...

Tech Transfer Reports
Medical

Noise-Immune Stethoscope Benefits Wounded Soldiers

For injured soldiers requiring evacuation from a battlefield via helicopter, body sounds become valuable in managing the patient's condition. Since helicopters and fixedwing aircraft used...

Briefs
Electronics & Computers

Microwave Sources Utilizing Linear Induction Accelerators

Progress has been reported in a continuing effort to develop pulsed, high-power microwave signal sources based on (1) oscillators in the form of relativistic magnetrons containing...

Briefs
Electronics & Computers

Accomplishments of the Microwave Power Research Initiative

Research performed under the auspices of the Microwave Power Research Initiative (MiPRI) between May 1, 2005 and April 30, 2006 has been reported. [The MiPRI is a congressionally mandated Air Force program to advance the science of high-power electron- beam-driven microwave and...

Briefs
Electronics & Computers

Microstrip Patch Antennas Containing Multi-PBG Structures

Microstrip patch antennas of a proposed type would contain photonic- bandgap (PBG) structures characterized by multiple bandgaps. In a given antenna, the PBG structure(s) could be one...

Briefs
Electronics & Computers

Assembly of Nanowire-Based Computing Systems

A program to develop ultra-dense integrated digital data-processing systems and circuits based on nanowires involves utilization of hybrid top-down and bottom-up assembly techniques to implement designs representative of a highly reliable defect- and fault-tolerant architecture. This program has...

Briefs
Electronics & Computers

Compensating for Parasitic Effects in Low-Pass Filters

Techniques to compensate for the effects of parasitic inductances and capacitances have been developed as part of an effort to improve the performances of low-pass filters in electronic...

Briefs
Photonics/Optics

Fast Liquid-Crystal-on-Silicon Spatial Light Modulators

Stressed-liquid-crystal (SLC) light-modulating devices suitable for use as liquidcrystal- on-silicon (LCOS) spatial light modulators (SLMs) that could operate in nearand mid-infrared...

Briefs
Photonics/Optics

Detecting Change in 3D by Use of an Evidence Grid

Astudy has been undertaken to evaluate a method of detecting change in a three-dimensional (3D) terrain map generated from data acquired by an imaging ladar system carried aboard a moving...

Briefs
Materials

Accelerated Evaluation of Properties of Polyphase Alloys

A methodology for accelerated evaluation of mechanical properties of polyphase alloys is based on digital representations of the alloys. For a given alloy material system, this...

Briefs
Materials

Plasma-Spray Coating as an Alternative to Chromium Plating

Plasma-spray application of coating materials that include tungsten carbide has been investigated as an alternative to electroplating of hard chromium onto internal metal surfaces...

Briefs
Materials

Measuring Glucose Using pH-Sensitive Hydrogels

Sensors that exploit pH-sensitive hydrogels for measuring concentrations of glucose in aqueous solutions are undergoing development. Because the underlying chemical and physical principles are...

Briefs
Mechanical & Fluid Systems

Thrust-Augmented Nozzles for Rocket Engines

The thrust-augmented nozzle (TAN) has been invented as a means of obtaining high performance from a rocket engine both during liftoff at sea-level atmospheric pressure and later during flight under...

Briefs
Mechanical & Fluid Systems

Thermal Design and Analysis of a Rocket-Engine TAN Injector

A subscale thrust-augmented-nozzle (TAN) rocket engine was designed, built, and hot-fire tested to demonstrate the validity of the TAN concept. As described in more detail in the...

Briefs
Information Technology

Two-Processor Autopilot System for a UAV

A two-processor autopilot control system for an unmanned aerial vehicle (UAV) has been proposed and partly developed. Relative to prior such systems, this would be a lightweight, inexpensive autopilot...

Briefs
Information Technology

Automatic Abstraction of Information From Digitized Images

A research effort now underway addresses fundamental mathematical issues involved in a methodology of creating flexible machine vision systems that would be able to modify their...

Tech Transfer Reports

Radar Anti-Jamming Technology Helps Shoot Down Cancer

Phased-array techniques are used to improve radar and communications systems by simultaneously nullifying and amplifying electromagnetic waves. With a focused heating regimen based on an adaptive phased array (APA) technique, a targeted microwave therapy is being tested to fight breast...

Tech Transfer Reports

Magnetic Sensors Enable Noninvasive Communication With Pacemakers

NVE Corporation of Eden Prairie, MN develops and sells devices using "spintronics," a nanotechnology that uses electron spin rather than electron charge to acquire, store, and transmit information. Spintronic products include sensors and couplers used in applications in industrial...

Products

Flywheel Power System

Pentadyne Power Corp., Chatsworth, CA, offers the VSS+DCadvanced DC flywheel power system that stores energy kinetically instead of chemically, providing stable DC voltage for applications where power continuity is...

Products

Data Storage Subsystem

Micro Memory®, Chatsworth, CA, has introduced Anvil™, a data storage subsystem for recording real-time sensor signals in intelligence and surveillance applications such as radar, signal intelligence,...

Products

Rugged Storage System

VMETRO, Houston, TX, offers the SANbric rugged storage system that enables commercial FibreChannel disks to be used for high-speed, streaming data recording applications in harsh environments such as military,...

Products

Airborne Data Acquisition System

The Heim Data division of Zodiac DataSystems, Belmar, NJ, has introduced the D7000 airborne data acquisition and recording system designed for a range of operational and flight test applications. The system...

Products

Ruggedized Keyboard

The SL-86-911 rugged keyboard from IKEY IndustrialPeripherals, Austin, TX, can be integrated into tactical maintenance and diagnostic military products, and into control panels of submarines, tanks, vehicles, and jets.The...

Products

Flight Data Analysis Software

The MathWorks, Natick, MA, has released Aerospace Toolbox, which provides reference standards, environmental models, support for importing aerodynamic coefficients, and three-dimensional visualization capabilities in MATLAB®. With a built-in interface to the FlightGear flight simulator, the new toolbox lets...

Products

Rugged Multi-Function I/O Card

Radstone Embedded Computing, Billerica, MA, has announced the rugged CompactPCI MFIO-C6 multi-function I/O card that addresses CompactPCI applications in military computing. The card features an MPC8270 PowerQUICC II processor, 8 analog inputs, 7 open collector 250mA outputs, 48 LVTTL I/O channels, 5 LVDS output...

Products
Electronics & Computers

DC/DC Converter

The Electronics Group of Crane Aerospace & Electronics, Redmond, WA, has announced the Interpoint MPE series of DC/DC converters that accepts a 16 to 50 DVC input and provides single or dual outputs with up to 25 watts of...