Award Data

AN EFFORT TO ESTABLISH A METHODOLOGY FOR ASSESSING THE EFFECT ON SHIPBOARD ROBOTIC SYSTEMS OF SEAWAY INDUCED SHIP MOTIONS, VELOCITIES AND ACCELERATIONS IS DESCRIBED. THIS METHODOLOGY IS INTENDED TO PROVIDE: 1.) METHODS FOR ASSESSING THE IMPACT AND EFFECTS ON SHIPBOARD ROBOTIC SYSTEM PERFORMANCE, RELIABILITY, SAFETY AND SERVICE LIFE OF SHIP MOTIONS AND; 2.) A BASIS FOR DEVELOPING DURING PHASE II A ...

NARROWBAND SPECTRAL ANALYSIS IS AN IMPORTANT SIGNAL PROCESSING APPROACH FOR THE DETECTION OF TARGETS/OBJECTS THAT MAY BE IMBEDDED IN VARIOUS TYPES OF NOISE BACKGROUNDS. HOWEVER, THE SPECTRA EMITTED BY MANY TARGETS/OBJECTS IS BROADBAND IN NATURE, AND REQUIRES A DIFFERENT SIGNAL PROCESSING APPROACH TO MAXIMIZE PROBABILITY OF DETECTION FOR A FIXED PROBABILITY OF FALSE ALARM. THE OBJECTIVE OF THIS STU ...

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PROPOSAL TO CONTRUCT PTOTOTYPE AND TEST CONCEPT FOR TERNARY KEYBOARD WHICH MIGHT BE GENRALLY USEFUL FOR DATA ENTRY. KEYBOARD IS UNCONVENTIONAL IN CONSTRUCTION AND CAN ONLY BE EVALUATED EXPERIMENTALLY BECAUSE HUMAN FACTORS WILL REGULATE ITS UTILITY.

IN THIS PROJECT, AN ADVANCED UNDERWATER ACOUSTIC INTENSITY MEASUREMENT SYSTEM WILL BE DESIGNED, BUILT AND TESTED. THIS SYSTEM CONSISTS OF A MULTI-SENSOR PROBE-TYPE ARRAY, A REAL-TIME SPECTRUM ANALYZER AND A MINI-COMPUTER SYSTEM WITH BUILT-IN IN-SITU CALIBRATION CAPABILITY. THE SYSTEM IS CAPABLE OF MEASURING, DISPLAYING, AND MEMORIZING: (A) THREE ORTHOGONAL ACOUSTIC INTENSITY VECTORS AND THE TOTAL ...

POTENTIAL NAVAL SHIPBORNE MM WAVE APPLICATIONS ARE REVIEWED. EMPHASIS IS ON THE NEED TO COUNTER ANTI-SHIP MISSILE THREATS FOR WHICH PRESENT SYSTEMS MAY NOT BE EFFECTIVE, AND THE "SEA-SKIMMING" ANTI-SHIP MISSILE IS EXPECTED TO CONTINUE TO GENERATE DEMANDING SHIPBORNE FIRE CONTROL RADAR REQUIREMENTS. A COMBINATION OF VERY SHORT REACTION TIME, A SMALL RCS TARGET, AND "CLUTTER" POSES SIGNIFICANT RADAR ...

COMPOSITE MATERIALS ARE BEING USED IN AN INCREASINGLY DIVERSE ARRAY OF APPLICATIONS. IN RECENT YEARS, HIGH STRENGTH COMPOSITES HAVE DEMONSTRATED THE ABILITY TO PERFORM BETTER THAN METALS IN MANY STRUCTURAL USES. THIS PROGRAM IS DESIGNED TO EVALUATE THE USE OF STRUCTURAL COMPOSITES IN SELECTED SHIPBOARD APPLICATIONS. COMPONENTS WILL BE IDENTIFIED AND PERFORMANCE REQUIREMENTS ESTABLISHED. THE APPROP ...

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THE SEEMINGLY IMPOSSIBLE TASK OF PRODUCING ONE-HALF OF A MEGAWATT OF ACOUSTIC POWER UNDERWATER AT A FREQUENCY OF 5 HZ IS ADDRESSED. THE EXPLOITATION OF THE RECENT INTRODUCTION OF NEW RARE EARTH PERMANENT MAGNET MATERIALS, THE CONCEPT OF USING A FLEXURAL DISC RADIATOR, AND THE RECENT CULMINATION OF TWO YEARS OF ELECTRODYNAMIC TRANSDUCER DEVELOPMENT IS PROPOSED. THE USE OF MATHEMATICAL MODELING, EXP ...