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Wind noise in outdoor measuemetn micropnones can mask an acoustic signal. Windscreens provide some wind noise reduction; however, those typically used for outdoor applications provide noise reductions of approximately 10-15 dB. Planning Systems Incorporated (PSI) proposes to design and test a Multiple Aperture Sensor System (MASS) consisting of a microphone, a processor, and data acquisitio and ...

The current market for fast switching frequency sythesizers is growing rapidly. Most synthesizers available today will not meet the stringent requirements for switching quickly, providing spectrally pure RF outputs and minimizing physical size and cost. As part of a current SBIR program, S.T. Research has developed a wideband, fast switching synthesizer, based on the use of broadband phase-locke ...

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The production of semi-conductor wafers is a multibillion dollar industry. The 1996 worldwide semiconductor market is estimated at $162 billion with a growth potential to $309 billion by the year 2000. Thus, even a small improvement in control during the manufacturing process could have a large impact on the economic viability of many companies and products. A critical factor in all semiconduct ...

A novel approach for controlling weld bead penetration is proposed. The methodology is distinguished from past techniques by use of: 1) a new and more accurate model of the weld pool dynamic behavior, 2) an improved method of sensing the weld pool oscillations, 3) a more efficient method of weld pool excitation, and 4) a model-based relation of pool dynamics, weld pool geometry, and equipment para ...

The proof of concept research explores the potential for integrating the following four 'personal devices's () baseline IFF personal device () data applique interface to field processors () audio applique interface to voice headset or audio monitor () video applique interface to camera and display into a single, wearable non-line of sight spread spectrum IFF, tracking and duplex multimedia com ...

Computing technology (as well as control and display technology) is rapidly becoming more powerful, miniaturized and wearable. These trends will allow Navy personnel to be increasingly mobile, not tethered to hardwired console and computer systems. In conjunction with wearable display systems, wireless LANs, and alternative control mechanisms (such as voice recognition), system operators may, ...

Systems & Processes Engineering Corporation (SPEC) proposes to develop a Waveform Agile Signal Processor (WASP) to support the next generation of fuzing systems and subsystems. WASP is designed to~provide high performance, waveform agile, adaptive signal processing for a variety of RF and optical fuze sensors. WASP is designed to support pulsed time domain, frequency domain, phase, direct sequen ...

CONTRACTOR WILL EXAMINE THE FEASIBILITY OF HYBRID POWERPLANTS IN SMALL V/STOL AIR VEHICLES THAT COMBINE INTERNAL COWBUSTION (IC) ENGINESAND PULSED POWER ELECTRICAL AUGMENTATION MACHINES. THE IC ENGINES WILL HE SIZED TO WEET THE AVERAGE POWER NEEDS OF THE WDSSION WHILE THEELECTRICAL NACHINE WILL NEET ABOVE-AVERAGE PEAKS (SUCH AS OCCUR DURING TAKE-OFF AND LANDING) AND BE RECONFIGURED TO SUPPLY POWER ...