Apr 2008

Applying Reconfigurable Computing to Acoustic Sensors Using FPGAs

A hybrid-computing architecture using FPGAs collects, processes, and reports data from acoustic and other sensors.

A novel microsensor processing architecture allows a field-programmable gate array (FPGA) to act as a reprogrammable preprocessor or coprocessor to a general-purpose processor (GPP). The FPGA does most of the computationally complex pieces of the algorithm, while the GPP is lightly ...
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Delta-Sigma UHF Digital Waveform Generator

The Delta-Sigma modulation technique meets the demanding requirements of future radar applications.

A prototype Digital Waveform Generator (DWG) in the ultra-high-frequency (UHF) range uses Delta-Sigma (Δ−Σ) modulation techniques, which permit arbitrary and accurate waveform generation. The DWG meets the demanding and diverse waveform requirements of future ...
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Network-Enabled Resource Devices

NERDs can control robots, communications/GPS modules, and intruder-detection systems.

Network Enabled Resource Devices (NERDs) combine the most common electronic components used in robotic applications into a standard electronics box with “plug-n-play” capabilities. Risk reduction efforts, systems testing and integration, and modifying the functionality of evolving ...
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Software-Defined Radios for Urban and Indoor Navigation

A network provides both positioning and communication services.

Software-defined radios (SDRs) are being developed to provide positioning and communication (POSCOMM) services inside buildings and tunnels, under tree canopies, and in other environments in which local radio- communication systems are accessible but Global Positioning System (GPS) signals ...
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Conjugated Polymers Having High Charge-Carrier Mobilities

Progress has been made toward realization of practical polymer semiconductor devices.

A three-year research project encompassed multiple studies of (1) polymer semiconductors that exhibit relatively high electric-charge- carrier mobilities and (2) applications of these polymers in electronic (including optoelectronic and nanoelectronic) devices. Although these ...
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Design Study of a C-Band Crestatron

Crestatrons could be substituted for TWTs to reduce sizes and weights.

A design study of a crestatron that would operate in the frequency range from 3 to 6 GHz (which overlaps with the C band) has been performed. The basic crestatron concept was developed during the 1950s. The ...
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Feb 2008
A Comparison of SiC-Based Devices for Use as Power Switches
Advances in Organic-Based Electronic Devices
AlxInyGa1-x-yN Ultraviolet Light-Emitting Triodes
DC Power Converter for 200°C Containing SiC Transistors
Protection Schemes for Advanced Shipboard Electrical Systems
Dec 2007
Time Coding of Asynchronously Transmitted Multi-Source Data
Quantum Network Testbed
Monitoring and Charging System for a High-Power Battery
Oct 2007
Variable-Data-Rate Speech Encoder
Aug 2007
Life Tests of a Microwave MEMS Capacitive Switch
Interactive DataWall
Miniature Semiconductor Diodes as Pumps and Motors
Jun 2007
Dense Functionalized-Nanowire Biosensor Arrays
Nanowire-Based Chemical and Biological Sensor Arrays
Improved Magnetic Sensor Based on Giant Magneto-Impedance
Progress in Canted Sector Antennas and Non-Periodic Arrays
Photonic Analog-to-Digital Converters
Apr 2007
Real-Time Simulation and Semiautomated Design of Complex ICs
A Study of Two Ferrocene-Based Molecular Electronic Devices
Adaptive Quantum Design of Semiconductor Devices
Feb 2007
Front-End Mixed-Signal Receiver on a Chip
Microwave Sources Utilizing Linear Induction Accelerators
Accomplishments of the Microwave Power Research Initiative
Microstrip Patch Antennas Containing Multi-PBG Structures
Assembly of Nanowire-Based Computing Systems
Compensating for Parasitic Effects in Low-Pass Filters
Oct 2006
Textile Capacitor
Aug 2006
Adaptable Miniature Initiation System Technology
Jun 2006
Collapsing and Closing Unmanned Air Vehicle Swarms
Eddy Current Inspection System
Apr 2006
Low-Cost Transmit/Receive Module for Satellite Control and Communications
The Next Frontier of Networking—The Airborne Network
Feb 2006
Weapon Data Link Demonstration
RASCAL Facility
Oct 2005
F-35 Antenna Measurement Program

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