Award Data

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RAIN IS THE PRINCIPAL CAUSE OF SIGNAL DEGRADATIONS IN THE TERRESTRIAL AND SATELLITE COMMUNICATIONS SYSTEMS OPERATING AT CENTIMETER AND MILLIMETER WAVELENGTHS. A WIDE RANGE OF UNCERTAINTY ON THE SUBJECT EXISTS AND THE COMMUNICATIONS SYSTEM DESIGNERS ARE CONFRONTED WITH CONFLICTING DATA. THE PROPOSED STUDY HAS THREE OBJECTIVE: (I) THE COLLECTION, COMPILATION, EVALUATION AND CORRELATION OF EXISTING O ...

Analysis of material surface defect plays an important role in the development of new materials and fabrication processes, and in the diagnosis of process problems in material manufacture. The task of manual defect analysis is labor intensive and tedious, and the level of automation available is limited. We propose to develop image processing techniques and a complete system to fully automate defe ...

Plastic media blasting (PMB) is a process used to rapidly remove coatings from almost any product. current PMB materials, however, are not easy to dispose of once they have been used. The focus of this proposal is to identify new PMB materials that can meet the following requirements: compatibility with existing PMB materials; stripping rates competitive with state of the art PMB materials; and, c ...

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THE PROPOSED WORK WOULD PROVIDE MEANS FOR REMOTING THE TRANSMITTER PORTION OF GROUND-NETWORK RADIOS. FUTURE ENEMY SENSOR SYSTEMS WILL PROVIDE RAPID ACQUISITION AND TARGETING, ESPECIALLY AGAINST COMMAND CENTERS. TRANSMITTERS LOCATED FAR FROM ASSOCIATED RECEIVERS, EQUIPMENT AND PERSONNEL WOULD REDUCE THIS PROBLEM. THE DIRECT CONVERSION OF RF WAVEFORMS TO OPTICAL SIGNALS AND USE OF FIBER-OPTIC CABLE ...

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There is a need for nonlinear optical materials which can be used in optical devices that operate in severe military environments. Most of the new organic material based optical materials that are poised to replace traditional inorganic materials in this area, due to their improved optical properties and ease of fabrication, are particularly deficient in the are of environmental stability, especia ...

The autonomous control of flexible space structures will require a distributed computational architecture that provides the ability to perform system identification and adaptive control after orbital deployment. Neural network based supervised learning algorithms and hardware provide a beneficial tool for reducing the need for a priori knowledge of the structures behavior through rapid system iden ...

Integrated flight and propulsion control systems will be necessary to satisfy critical mission requirements in future aircraft. Aircraft flight and propulsion control systems are traditionally designed to operate independently of each other. This method often results in a system where performance is compromised for robustness and operability. There exists a great need for nonlinear system identifi ...