Award Data

A System-Level Modeling Framework for electromagnetic modeling is proposed. The heart of the Framework is a rule-based, whole-object conversion process that takes Computer Aided Design (CAD) geometry and material data and transforms it into valid,electromagnetic geometry and material modeling elements. The CAD Converter creates an

Develop and test antennas suitable for an unmanned aerial vehicle (UAV) with signals intelligence and communications payloads and the potential to be used with other systems. New ideas are stressed to achieve antenna miniaturization and widebandwidths.The development of a miniaturized broadband antenna covering VHF/UHF frequencies for potential DF systems holds the potential for applications in w ...

Design of next-generation vehicles for the Army must include an analysis of their detectability over a wide range of electromagnetic (EM) frequencies. Of particular interest is the frequency range of 50 to 200 GHz. At these small wavelengths, ground andair vehicles comprise millions of square wavelengths of surface area. The surrounding foliage, as well as earth surface terrains complicates the ...

The Army wishes to mount acoustic sensors on operational vehicles and use them to detect and localize other operational vehicles in the vicinity. The effectiveness of such a system can be limited by the noise created by the platform on which the sensorsare mounted. DSR proposes a system that combines noise cancellation techniques with adaptive beamforming techniques in order to simultaneously reje ...

This Small Business Innovation Research Phase I project will develop novel RF transparent but Visible- and IR-reflective coatings for large aperture windows. This will be accomplished by incorporating specific nanoparticles in thin films that can bedeposited on any type of window substrate, including transparent plastic sheets such as polystyrene. The ionically self-assembled monolayer (ISAM) tech ...

Wireless communications are becoming a preferred method of sending information anywhere in the world. Wireless systems have gone beyond radio, telephones, and television, to include computer networks, merchandising services, data systems, and personalcommunications devices. Advances in technology are making wireless communications easier, safer, of higher quality, and less expensive every month. ...

While explosive munitions are quite effective at causing damage due to blast and fragments, their radius of damage is somewhat limited. We seek here to introduce a method of increasing the damage radius by adding an RF weapon system to the munition,consisting of an impulse source and a broadband antenna. By this technique, additional damage will be created in the area by upsetting computers and co ...

The proliferation of clandestine laboratories for illegal drug manufacturing has escalated throughout the years. National total of methamphetamine laboratories seizures has grown from 43 in 1973 to a 2025 in 1999. Last year it registered an increment of24% compared to the previous year. These statistics only reflects the number of sites that were detected and seized. It is recognized, however, ...

The Army is currently working to create effective biometric systems for positive identification of users under tactical conditions including poor capture conditions, quick response time requirements, narrow bandwidth. For instance, a soldier will need touse his weapon reliably even if the fingerprint image he supplies is rotated, smeared, occluded, or damaged. Many advances in pattern recognition ...

This Phase I effort will establish rigorous technical requirements necessary to simulate image intensifiers (NVGs) credibly and realistically in US Army NVG simulators. The associated analysis and requirements definition will cover such areas asintra-scene and intensifier dynamic range and spatial resolution, photo-cathode spectral response versus scene spectral input, micro-channel plate (MCP)