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THE ACOUSTIC CHARGE TRANSPORT (ACT) DEVICE IS A RELATIVELY NEW COMPONENT, FABRICATED IN MONOLITHIC FORM ON GAAS, THAT OFFERS TREMENDOUS POTENTIAL FOR CURRENT/FUTURE SIGNAL PROCESSING SYSTEMS. BECAUSE OF ITS NEWNESS, LITTLE SYSTEMS APPLICATION WORK HAS BEEN PERFORMED TO-DATE. THE AREAS OF GREATEST POTENTIAL ARE IN RADAR, SONAR, AND PARTICULARLY, ELECTRONIC WARFARE (EW). IN ORDER TO EXPLOIT THIS DEV ...

Recommender systems have achieved great success in the commercial world, and also hold a strong potential for providing a major advantage to analysts and planners in the military domain. However, in order to realize this potential, a number of key challe...

Compressed Natural Gas is the leading alternative automative fuel candidate. However, current cylinders used for on-board CNG storage are expensive, overweight, and have limited capacity. The Flex Tube program develops technology that significantly reduces CNG fuel storage system cost, weight, complexity, and installation efforts. Unlike conventional cylinders, Flex Tube is a composite-overbraided ...

There is growing interest in using unmanned air vehicles (UAV's) instrumented with particle sensors to detect the presence of hazardous airborne chemical/biological (CB) agents. The effectiveness of this point source approach depends on providing the airborne sensors with the largest possible and most varied volume of the atmosphere. We seek to investigate whether or not the local flow upstream of ...

The goal of this project is use Answer Set Programming (ASP) methods to create a commercially viable software application (“SocioLogix™”) for social network analysis (SNA). Recent developments in Answer Set Programming and propositional satisfiability checking (SAT-checking) have potential to extend the power of software to use techniques of rule-based or “qualitative” optimization to f ...

AUTOMATIC IDENTIFICATION OF TARGET INFORMATION USING RADAR CROSS SECTIONS IS AN EXTREMELY DIFFICULT PROBLEM. A LARGE AMOUNT OF EFFORT HAS BEEN DEVOTED TO THE PROBLEM OF ESTIMATING THE RADAR CROSS SECTION OF VARIOUS SHAPES, BUT THE RANGE OF POSSIBLE OBJECTS WHICH CAN BE ENCOUNTERED IS LARGE, AND MEASURES CAN BE TAKEN TO ALTER THE APPEARANCE OF A RADAR CROSS-SECTION. IN ADDITION, AN OBJECT CAN BE VI ...

SAR systems covering large swath widths suffer from range ambiguities when using high duty cycle radar signals having standard SAR waveforms. Range ambiguities can be eliminated by transmitting nonstandard orthogonal waveforms. Analysis and simulations will be carried out to determine the performance of different orthogonal waveforms in terms of minimizing SAR image sidelobe levels and limiting ...

GaAs-based VCSEL's with thermally oxidized AlxGa(1-x)As current apertures have recently been demonstrated that possess record performance benchmarks in terms of low current thresholds and high power conversion efficiency. Work done at ASU and elsewhere has begun to demonstrate the enormous potential of AlxGa(1-x)As-oxide layers in a variety of additional device-related applications. We have demo ...

We propose to develop a novel Dynamic Warehousing and Mining (DWM) framework for in-situ collection and analysis of Human Social Cultural Behavior (HSCB) data. DWM is a large-scale, dynamic approach for maximizing the ability of intelligence analyst of various kinds to collect, organize and analyze text-based communication to assess HSCB dimensions for a given group and predict current belief stat ...