Award Data

AREAS OF THE OCEAN FLOOR DISPOSED TO MINE BURIAL HAVE SOFT SEDIMENTS (I.E., LOW SHEAR STRENGTH) OR SANDY SEDIMENTS SUBJECT TO SCOUR. KNOWLEDGE OF SEAFLOOR SHEAR STRENGTH, POROSITY, AND GRAIN SIZE WOULD AID THE HUNT FOR BURIED MINES. NORMAL INCIDENCE, ACOUSTIC ECHO SOUNDERS ARE BEING DEVELOPED TO INFER SUCH PHYSICAL PROPERTIES OF THE SEDIMENT. PSI PROPOES TO EVALUATE THE THE POTENTIAL FOR SUCCESS O ...

THERE IS CONSIDERABLE EVIDENCE THAT MINES BURY IN MANY AREAS WHERE BOTH NAVY AND COMMERCIAL SHIPS MUST OPERATE. IF THESE MINES ARE LEFT UNCOUNTERED, THEY POSE A SIGNIFICANT THREAT TO TRANSITING TRAFFIC. FORTUNATELY, NOT ALL SEA BOTTOMS ARE CONDUCIVE TO MINE BURIAL, AND THE BURIED MINE COUNTERMEASURES PROBLEM CAN BE REDUCED BY IDENTIFYING AND APPLYING BURIED MINE COUNTERMEASURES ONLY IN THE AREAS W ...

TO OVERCOME SHORTCOMINGS OF ASW WEAPONRY, NOSC PLANS A TECH BASE PROGRAM IN SUPPORT OF HIGH POTENTIAL ADVANCED ASW WEAPONS CONCEPTS. NUMEROUS CANDIDATES ARE AVAILABLE IN EACH OF THE SIGNIFICANT AREAS OF PROPULSION, WARHEADS, GUIDANCE, QUIETING AND NON-TORPEDO CONCEPTS. THERE IS A NEED FOR A TECHNOLOGY EVALUATION STRATEGY. THE OBJECTIVE OF PHASE I IS TO DEVELOP A STRATEGY THAT ENABLES THE INDIVIDUA ...

NUMERICAL WAVE MODELS HAVE IMPORTANT FORECAST AND HINDCAST APPLICATIONS. STATE-OF-THE-ART MODELS ARE COMPLEX COMPUTER PROGRAMS WHICH OPERATE ON LARGE COMPUTER SYSTEMS. COSTS OF MODEL OPERATION AND USE OF ADVANCED MODELS BY FEW ORGANIZATIONS MAKE WAVE INFORMATION FROM MODELS NOT AVAILABLE FRO MANY ENGINEERING AND SCIENTIFIC PROJECTS. ADVANCED MODELS ARE KEYED TO PREDICTIONS OVER LARGE AREAS AND GRI ...

MINE HUNTING WITH SIDE SCAN SONARS AND MAGNETOMETERS IS PROVING TO BE A LOW COST MEANS OF LOCATING MINES AND MINE-LIKE OBJECTS ON THE OCEAN BOTTOM. IT IS ALSO THE MOST EFFECTIVE MEANS OF PRECISELY CHARTING NON-MINE BOTTOM OBJECTS (NOMBOS) THAT CONSITIUE THE CLUTTER IN A CHANNEL OR SEA ROUTE THAT ARE FALSE TARGETS TO MINE HUNTER PLATFORMS. HOWEVER, CURRENT SIDE SCAN SONAR AND MAGNETOMETER SEARCH TE ...

A DIFFERENTIAL GPS GROUND STATION ASSOCIATED WITH A DATA LINK IS PROPOSED AS A POTENTIAL SOURCE OF INSTRUMENT METEOROLOGICAL CONDITIONS NAVIGATION DATA FOR AIRCRAFT AND AS A SOURCE OF DEPENDENT SURVEILLANCE DATA IN SUPPORT OF ATC OPERATIONS AT EXPEDITIONARY AIR FIELDS SERVED BY MATCALS. OBTAINABLE AIRBORNE POSITIONAL ACCURACIES IN A SELECTED AVAILABILITY DEGRADATION OF GPS C/S SIGNAL ACCURACY ENVI ...

METAL DEPOSITION AND COATING PROCESSES DEVELOPED AT VERSAR INC. MAKE IT POSSIBLE TO MODIFY COMMERCIALLY AVAILABLE RETICULATED FOAM MATERIALS SO THAT THEY WILL BE MORE CONDUCTIVE WITHOUT DEGRADING OTHER PROPERTIES UNACCEPTALY. THEREBY THE PROBLEM OF ELECTROSTATIC CHARGE BUILDUP DURING AIRCRAFT REFUELING OPERATIONS CAN BE ALLEVIATED AND THE RISK OF FIRES REDUCED. TWO PARALLEL APPROACHES ARE SUGGESTE ...

A VARIETY OF ALTERNATIVE APPROACHES HAVE BEEN PROPOSED FOR INFERENCE IN EXPERT SYSTEMS: BAYESIAN PROBABILITIES, BELIEF FUNCTIONS, FUZZY SETS, AND OTHERS. THEY DIFFER IN THE CONCEPTS THEY SEEK TO ADDRESS IN THEIR NORMATIVE JUSTIFICATION, IN EASE OF USE, AND PSYCHOLOGICAL APTNESS FOR THE PURPOSES OF EXPERTS AND EXPERT SYSTEM USERS. COMBINING RESEARCH EFFORTS IN STATISTICAL INFERENCE THEORY, COMPUTER ...

1 FOR PRECISE AND FAST TRAJECTORY FOLLOWING BY THE ROBOTIC SYSTEMS THE CONTROL SYSTEM DESIGN BASED ON SINGLE-IN-PUT, SINGLE-OUTPUT MODEL FOR EACH JOINT IS NOT ADEQUATE. WE PROPOSE TOTAKE AN APPROACH FOR CONTROLLER DESIGN BASED ON RECENT RESULTS ON INVERTIBILITY AND FUNCTIONAL RE- PRODUCTIBILITY IN MULTIVARIABLE NONLINEAR SYSTEMS. THE CONCEPT OF FUNCTIONAL REPRODUCIBILITY IS RELATED TO THE ABILITY ...

THE DECISION AID SUPPORT ENVIRONMENT (DASE) PROJECT ADDRESSES THE REQUIREMENTS AND DESIGN ISSUES SURROUNDING THE DEVELOPMENT OF AN ADA-BASED ENVIRONMENT SUPPORTING THE DEVELOPMENT AND OPERATIONS OF DECISION AIDS. THE PROJECT WILL ANALYZE EXISTING AND ENVISAGED DECISION AIDS AND DECISION AID LANGUAGES IN ORDER TO DERIVE REQUIREMENTS ON THE DASE. THE SUITABILITY OF ADA FOR DECISION AID SUPPORT WILL ...