Award Data

"Current man portable antennas are heavy, rigid, telescoping or umbrella like contraptions, which limit the mobility and speed of a deployed unit. We propose to improve the weight, storage size, and ease of deployment of a portable antenna through the useof electronic textiles as described in this proposal. Planar antennas have been manufactured on thin films and rolled into position, however a ri ...

"A multi-channel transmit array is to be developed for high-speed digital communications and radar applications. Digital beamforming (DBF) will be combined with direct digital synthesis (DDS) waveform generation to achieve a system capable of using bothwaveform diversity and spatial diversity. Multiple simultaneous transmit beams will be generated that may be configured and scanned digitally. Usin ...

"This SBIR Phase I project focuses on the implementation of a new THz module that can emit coherent and tunable THz waves. Recently, coherent THz radiation was generated at room temperature by PI, with a tuning range of 56.8-1618 ¿m (5.27 - 0.18 THz), inGaSe based on difference-frequency generation. The peak THz power can be as high as 69.4 W at 196 ¿m. The corresponding photon conversion effici ...

"We propose a directional, broadband, highly efficient underwater acoustic transducer using a baffled cylinder made out from piezoelectric single crystals. The prospective application areas will be for an underwater acoustic modem communication andAutonomous Underwater Vehicles (AUV), in which high efficiency of the transducer system is required due to the limited energy availability (battery) an ...

"This proposal is for the development of a high sensitivity pressure gradient acoustic motion sensor (accelerometer) of the flexural plate type using piezoelectric single crystals. The pressure gradient acoustic motion sensor is based on flexural plateelements operating below resonance in the accelerometer mode. The high piezoelectric coefficients for single crystals is ideal for increasing the ...

"Coprime proposes to investigate the applicability of learning-based source separation methodologies to the problem of multiple targets in a complex acoustic environment. The Phase I effort will focus on identifying viable learning-based source separationalgorithms specifically tuned to the multiple combat vehicle scenario. A prototype architecture will be developed and numerical software rapidly ...

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THIS PROPOSAL IDENTIFIES A STRATEGY, BASED ON NEW OFF-THE-SHELF TOOLS, PROTOTYPING, AND INTERACTION WITH MAINTENANCE PERSONNEL, FOR DEVELOPING INFORMATION PRESENTATION GUIDELINES WHICH SUPPORT MAINTENANCE PERSONNEL WITH VARIOUS EXPERIENCE LEVELS, THE ENVIRONMENTS IN WHICH THE MAINTENANCE IS PERFORMED, THE DIFFERENT MEDIA AVAILABLE FOR ONLINE INFORMATION DISPLAY, AND THE COST-EFFECTIVE OF IMPLEMENT ...

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"The U.S. Air Force must develop the ability to rapidly drill many millions of 170 micron diameter holes through metal plates, to form injector heads as part of its ABL program. The holes must be high quality, non-invasive to the surrounding metal, and theprocess must be less labor and time intensive than present methods. As discussed in this proposal the physics of material removal with pulsed ...