Abstract:HIGH FREQUENCY (HF) COMMUNICATION IS VERY SENSITIVE TO THE TIMEVARYING NATURE OF THE CHANNEL AND CONSEQUENTLY DATA CANNOT BE TRANSMITTED ACROSS THE CHANNEL ERROR FREE. THE CHANNEL IS INHERENTLY LIMITED IN PERFORMANCE SINCE THE CHANNEL USES THE IONOSPHERE TO REFLECT THE TRANSMITTED SIGNAL. THE… more
Abstract:THE LACK OF SHIP DEPLOYABLE AND OPERATIONALLY USEFUL MINESWEEPING EQUIPMENT TO COUNTER THE PRESSURE MINE THREAT REMAINS A CRITICAL DEFICIENCY. THIS PROPOSED RESEARCH IS TO INVESTIGATE NEW TECHNIQUES, NEW APPLICATIONS, AND USE OF NEW TECHNOLOGY/MATERIALS FOR DEVELOPMENT OF FEASIBLE NEW APPROACHES TO… more
Abstract:THE DOLPHIN, AS A SELF-PROPELLED UNDERWATER PLATFORM, IS CHARACTERIZED BY UNUSUALLY SMALLHYDRODYNAMIC DRAG, EXCEPT IONALLY LOW FLOW NOISE, AND MARKED DELAY OF THE ONSET OF BOUNDARY LAYER TURBULENCE. DOLPHINS, SWINNING IN BIOLUMINES CENT OPEN OCEAN WATER AT SPEEDS UP TO 10 KTS, FOR EXAMPLE, ARE… more
Abstract:THE ARMY HAS A NEED FOR HIGH PEAK POWER/HIGH AVERAGE POWER FREQUENCY DOUBLED, FLASHLAMP PUMPED, Q-SWITCHED ND: YAG L LASERS. THE PRINCIPAL LIMITATION TO THESE DEVICES ARE THE FREQUENCY DOUBLERS. THE SLAB OPTICAL FREQUENCY DOUBLER ( (SOFD) PROGRAM IS THE RESULT OF A CONCEPT WHICH OVERCOMES THE… more
Abstract:PSI PROPOSES TO PURCHASE SPECTROSCOPIC SAMPLES OF MATERIALS DOPED WITH TRANSITION METALS TO STUDY AS POSSIBLE ROOM TEMPERATURE LASER MATERIALS FOR THE NEAR INFRARED. INTERFEROMETER PATTERNS, ABSORPTION SPECTRA, EMISSION (FLUORESCENCE) SPECTRA AND EXCITATION SPECTRA WILL BE OBTAINED. FLUORESCENCE… more
Abstract:PRESEARCH INCORPORATED PROPOSES TO RESEARCH AND DESIGN A MAN-MACHINE INTERFACE (MMI) CONCEPT FOR A TRANSIENT ACOUSTIC DETECTION MONITOR (TADM). THIS RESEARCH WILL EVALUATE PERFORMANCE MEASUREMENT, ACOUSTIC SYSTEM IMPLEMENTATION EXPERIENCE, DECISION-MAKING PROTOCOLS FOR CLASSIFYING TRANSIENT ACOUSTIC… more
Abstract:THE GOAL OF THIS PHASE I PROJECT IS TO DEVELOP AN INTERACTIVE COMPUTER SYSTEM CAPABLE OF ASSISTING INVESTIGATORS IN THE DESIGN OF STATISTICAL ASPECTS OF CLINICAL ONCOLOGY TRIALS. THE SYSTEM WILL ADVISE THE USER CONCERNING CHOICES OF TYPE I ERROR, POWER, DETECTABLE TREATMENT DIFFERENCES, AND SAMPLE… more
Abstract:APL IS A POWERFUL, HIGH-LEVEL, COMPACT COMPUTER LANGUAGE FORTHE MANIPULATION OF NUMERIC OR CHARACTER DATA. THERE IS, HOWEVER, A LACK OF APL STATISTICAL FUNCTIONS FOR USE BY DATAANALYSTS AND OTHERS WHO USE OR DEVELOP STATISTICAL METHODS. QUANTECH PROPOSES TO DEVELOP A LIBRARY OF APL FUNCTIONS TO HELP… more
Abstract:SINCE THE EARLY 1960'S, IT HAS BEEN RECOGNIZED THAT "ELECTROSTATIC DISCHARGE" (ESD) CAN DAMAGE ELECTRONIC PARTS. WITH THE PROGRESSIVE MICROMINIATURIZATION OF ELECTRONICS, MORE AND MORE PARTS BECOME SUSCEPTIBLE TO DAMAGE FROM ESD. THE TREND TOWARDS GREATER MICROMINIATURIZATION AND MORE COMPLEX… more
Abstract:RA ASSOCIATES PROPOSES TO INVESTIGATE CURRENT MANUFACTURER PROM PROGRAMMING ALGORITHMS AND RELIABILITY TESTS THAT SUPPORT THEM. THEY WILL ALSO POLL USERS FOR KNOWN RELIABILITY PROBLEMS WITH PROMS USING NEWER TECHNOLOGIES SUCH AS TITANIUM-TUNGSTEN AND SHORTED JUNCTIONS. SUGGESTED IMPROVEMENTS IN… more
Abstract:SIGNAL PROCESSING CONCEPTS ARE PROPOSED TO BE DEVELOPED HERE TO IMPROVE PASSIVE IDENTIFICATION AND LOCALIZATION TO MULTIPLE SIMILAR EMITTERS. THESE CONCEPTS WILL BE DEVISED TO EXPLOIT AVAILABLE IDENTIFYING INTRINSIC AND EXTRINSIC EMITTER SIGNAL CHARACTERISTICS TO ENABLE ASSOCIATION OR CORRELATION OF… more
Abstract:COST REDUCTION HAS DRIVEN THE INCREASED USE OF LARGE CARGO CARRIERS (LCC'S) IN MARITIME TRANSPORATION. THE LCC'S INCREASED DRAFT, BEAM AND LENGTH ARE WELL RECOGNIZED, BUT THE PROPORTIONATE INCREASED HEIGHT OR AIR DRAFT REQUIRE MENT IS OFTEN IGNORED. THE CLEARANCE FOR MANY BRIDGES, DESIGNED FOR… more
Abstract:TO SUPPORT THE INCREASING ACCURACY, SPEED AND EFFICIENCY REQUIREMENTS OF THE ORBIT DETERMINATION PROCESS FOR FUTURE LOW EARTH ORBITING SPACECRAFT MISSIONS, A GROWING NEED FOR IMPROVED SIGNAL PROCESSING TECHNIQUES IS BECOMING APPARENT. A PRINCIPAL NEED IS THE SIGNIFICANT REDUCTION IN PSEUDO-NOISE… more
Abstract:THIS PROJECT CONCERNS A TECHNIQUE WHICH COMBINES THE INHERENT TIME BENEFITS OF AN ANALYTIC MODELING APPROACH FOR INVESTIGATING COMMUNICATION CHANNELS WITH THE FLEXIBILITY OF A MONTE CARLO DIRECT SIMULATION APPROACH INTO A SINGLE INTEGRATED SOFTWARE PACKAGE. THE RESULTANT MATHEMATICAL MODELING TOOL… more
Abstract:A METHODOLOGY FOR EVALUATING SATELLITE SYSTEM SURVIVABILITY (AS A FUNCTION OF CONTROL AUTONOMY) IS PROPOSED. THE METHODOLOGY COMBINES THE PROVEN EFFECTIVENESS OF ANALYSIS AND SIMULATION TECHNIQUES FOR ASSESSING JAMMING, NUCLEAR SCINTILLATION AND PHYSICAL THREATS UNDER CONTROL AND GUIDANCE OF AN… more
Abstract:THERE IS A GROWING NEED TO ACTIVELY MONITOR RADIO COMMUNICATION CHANNELS AND RECEIVER CIRCUITS FOR THE PRESENCE OF INTENTIONAL OR UNINTENTIONAL INTERFERENCE THAT MAY DEGRADE LINK QUALITY. THE MULTIPLICITY OF SIGNAL FORMATS AND INTERFERENCE TYPES MAKES THE TASK OF DEVELOPING ROBUST MONITORING… more
Abstract:EXPERT SYSTEM TECHNOLOGY IS GROWING RAPIDLY. COMMERCIALLY AVAILABLE PACKAGES (GENERAL PURPOSE INFERENCE ENGINES, KNOWLEDGE/DATA REPRESENTATION SCHEMES AND DEVELOPMENT ENVIRONMENTS) ARE MULTIPLYING. CUSTOM REAL-TIME EXPERT SYSTEMS ARE NOW BEING FIELDED. REAL-TIME FEATURES ARE BEING ADDED TO GENERAL… more
Abstract:A GROWING NEED EXISTS FOR A DYNAMIC COMPUTERIZED DATA BASE THAT WILL EFFECTIVELY MONITOR CORROSION DAMAGE TO THE ARMY'S TACTICAL WHEEL VEHICLE FLEET. THIS DATA BASE SHOULD BE DESIGNED TO FACILITATE BOTH THE ADDITION OF NEW DATA SETS AND THE UPDATE AND CORRECTION OF THOSE PREVIOUSLY ENTERED.… more
Abstract:ARMY AVIATION (HELICOPTERS) REPRESENT AN INCREASINGLY CRITICAL COMPONENT IN FUTURE AIRLAND BATTLES AND THEREFORE A MORE INTENSIVE, EFFICIENT AND RESPONSIVE OPERATIONS MANAGEMENT SYSTEM IS REQUIRED. WITHOUT AN EFFICIENT DISTRIBUTED COMMAND AND CONTROL SYSTEM THESE OBJECTIVES CANNOT BE MET. WE PROPOSE… more
Abstract:SINCE THE EARLY 1960S, IT HAS BEEN RECOGNIZED THAT "ELECTROSTATIC DISCHARGE" (ESD) CAN DAMAGE ELECTRONIC DEVICES. WITH THE PROGRESSIVE MICROMINIATURIZATION AND INCREASED COMPLEXITY OF ELECTRONIC DEVICES, MORE AND MORE DEVICES ARE BECOMING SUSCEPTIBLE TO DAMAGE FROM ESD. THIS CONTINUING TREND IS… more
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