Award Data

Advances in active acoustic systems exacerbate the problem of signal classification in a high contact-density environment. Increased contact loading forces the operator to classify contacts more rapidly, reducing his effectiveness. The key to early classification is an understanding of target response in terms of vibrational mode and localization of dominant contributors. Phase I will develop this ...

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Advanced technology for adaptive structures is being developed which enable advancements in distributed control and sensing for application to active suppression of ship noise in Naval operations. Advanced control systems for wide band cancellation of ship borne noise as well as reduction of reflected acoustic energy from echo ranging are considered for evaluation. Advanced methods in modern contr ...

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A difficult problem of software configuration control is to determine the effects of a contractor's change to "frozen" software. The test team must ascertain the extent and nature of changes and how much regression testing may be needed. A hybrid integration of an artificial neural network (ANN) and knowledge-based expert system (KBE) is proposed to provide parameterized estimates for effects due ...

WE PROPOSE A SYSTEMATIC INVESTIGATION OF ADVANCED MODELING AND STOCHASTIC CONTROL AND SCHEDULING METHODOLOGIES FOR ASPECTS OF WEAPONS ALLOCATION PROBLEMS - SEVERAL PLATFORMS WITH ASSETS OF DIFFERENT CHARACTER DEFENDING AGAINST A DIVERSE COLLECTION OF TARGETS. WE ARGUE THAT THE MODELS FOR SUCH SCENARIOS LEAD TO STOCHASTIC SCHEDULING PROBLEMS WHICH CAN NOT BE HANDLED BY CONVENTIONAL ANALYTICAL METHO ...

CRUSH SENSORS AND PROBES USED IN INEXPENSIVE MISSILES AS CONTACT DEVICES ARE EASILY DAMAGED BY HANDLING OR ANTI-MISSILE DEFENSES. PIEZOELECTRIC ACCELEROMETER CONTACT FUZES WITH FIXED THRESHOLDS HAVE TROUBLE DETECTING A "SOFT" IMPACT WITH AN AIRCRAFT-S ALUMINUM SKIN IN THE PRESENCE OF ACCELERATION NOISE. AN ADAPTIVE CONTACT FUZE IS NEEDED TOSENSE SUCH SOFT IMPACTS IN THE PRESENCE OF ROCKET MOTOR, W ...

Increasing Navy use of embedded computer systems results in stringent requirements for real-time performance, reliability, and cost. Computer systems are critical embedded components of Naval warfare systems. The demands on embedded computer systems are increasing in terms of information processing and storage/retrieval. The designer must analyze results across many dimensions to identify critical ...

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The central focus of this proposal is on building an automatic target recognition system for identifyi-ng relocatable targets by integrating information from multiple sensors using a synergistic framework of neural networks and exprt systems. This frairework is ideally suited for 3..ricorporating human expertise of both perceptual and qualitative reasoning processes . From our prior experience in ...