Award Data

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THE DEVELOPMENT OF SIMULATION MODELS OF A DISTRIBUTED SYSTEMS AND THEIR MAPPING INTO A PARALLEL SYSTEM, IS A HIGHLY COMPLEX TECHNICAL TASK BECAUSE OF THE GREAT INFLUENCE ITS VARIOUS ELEMENTS WILL HAVE ON ITS PERFORMANCE. THERE ARE MAJOR TECHNICAL ISSUES INVOLVED IN PERFORMING SUCH COMPLEX SIMULATION EFFORT, INCLUDING UNIQUE REQUIREMENTS SIMULATION MODELS, VARIED ARCHITECTURAL CONCEPTS OF DISTRIBUT ...

A PORTABLE, LOW COST FM-CW DOPPLER WEATHER RADAR IS PROPOSED TO PROVIDE "REAL-TIME" METEOROLOGICAL DATA IN THE FIELD. SUCH A SYSTEM WOULD ASSIST BATTLEFIELD DECISION MAKING BY MONITORING CONDITIONS PERTINENT TO MICROWAVE DUCTING, ARTILLERY CONTROL, AND DETERMINING LOCAL WEATHER. CURRENT DOPPLER WEATHER RADARS TEND TO BE PULSED, VERY LARGE, AND TO COST MILLIONS OF DOLLARS; THEY REQUIRE A LARGE OPER ...

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THE CONCEPT FOR AN AUTONOMOUS, DISTRIBUTED RF POWER MONITOR SYSTEM IS DESCRIBED. THE SYSTEM IS CAPABLE OF MONITORING RF POWER LEVELS OVER A FREQUENCY RANGE OF 300 KHZ TO 100 GHZ. AUTOMATIC OPERATION AND HARDWARE REDUNDANCY ENABLE THE SYSTEM TO CONTINUE OPERATION EVEN IF SOME ELEMENTS FAIL OR ARE REMOVED FOR MAINTENANCE. THE SYSTEM CONCEPT IS ADAPABLE TO REMOTE AREAS AND REQUIRES NO DEDICATED POWER ...

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AN INNOVATIVE CONCEPT FOR A NEW CLASS OF EMP SIMULATORS IS PROPOSED. THE ELECTROMAGNETIC EQUIVALENCE PRINCIPLE IS APPLIED TO PROVIDE A THREAT LEVEL SIMULATION WITH A BANDWIDTH GOAL OF 1 GHZ AND ARBITRARY ANGLES OF INCIDENCE AND POLARIZATION ARE PROVIDED BY SOFTWARE. IT IS ENVIRONMENTALLY SOUND AND IS HIGHLY AUTOMATED. IT IS EXPECTED TO BE LESS EXPENSIVE TO PROCURE AND MAINTAIN THAN CONVENTIONAL ME ...

GPS IS PLANNED TO BE USED BY THE U.S. ARMY IN A VARIETY OF TACTICAL SCENARIOS. FIRE CONTROL APPLICATIONS ARE CURRENTLY BEING INVESTIGATED WHERE GPS WOULD BE USED TO TRACK REGISTRATION ROUNDS AND LOCATE RADIOSONDES. SINCE GPS IS A RADIONAVIGATION SYSTEM, ITS EFFECTIVENESS IN A TACTICAL ENVIRONMENT IS LIMITED BY ITS SUSCEPTIBILITY TO ELECTRONIC COUNTERMEASURES (ECM). IT IS PARTICULARLY DIFFICULT TO ...

OPERATION OF A JAMMER TRANSMITTER FROM A SMALL PLATFORM (RPV OR JEEP) NECESSITATES THE USE OF ELECTRICALLY SHORT ANTENNAS SUCH AS SHORT WHIPS AND SMALL LOOPS. THE CONVENTIONAL APPROACH USES A POWER AMPLIFIER DESIGNED FOR A 50-OHM LOAD AND AN ANTENNA TUNER THAT MATCHES THE ANTENNA-INPUT IMPEDANCE TO OHMS. HOWEVER, THE RAPID FREQUENCY CHANGES REQUIRED BY JAMMERS PRECLUDE THE USE OF ANTENNA TUNING. T ...