Award Data

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A BROADBAND HIGH-FREQUENCY ANTENNA STRUCTURE FOR THE TACAMO AIRFRAME WAS STUDIED. THE STRUCTURES STUDIED WOULD NOT DEGRADE AERODYNAMIC PERFORMANCE AND WOULD ALLOW MULTIPLE TRANSMITTER OPERATION OVER THE FULL 2 TO 30 MHZ BAND. EVALUATION FACTORS WERE EFFICIENCY, BANDWIDTH, MINIMUM LOSSES, LOW RESISTANCE, AND MINIMUM CHANGES TO THE AIRCRAFT. INCLUDED IN THE STUDY WERE LONG WIRE, EMBEDDED, DIEELECTRI ...

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A CENTRAL ELEMENT IN MILITARY EXPERT-SYSTEM (ES) APPLICATION IS THE DYNAMIC HANDLING AND ADAPTIVE CONTROL OF EVIDENCE AND UNCERTAINTY. THERE ARE CURRENTLY FIVE DISTINCT APPROACHES TO THE PROBLEM OF EVIDENTIAL REASONING (ER). THESE ARE THE BAYESIAN, NEYMAN-PEARSON, DEMPSTER-SHAFTER, KYBURG, AND POSSIBILITY/FUZZY APPROACHES. IN ADDITION TO THE ER TASK OF REVISING DEGREES OF BELIEF OR SUPPORT, WE MUS ...

Todays sonar operators are presented with a voluminous amount of acoustic contact data spanning a large multidimensional search space of arrays, bearings, frequencies, and time. Improvement in arrays, signal processing, and computer performance have led to the ability to detect even more contacts. When combined with high contact density and long contact hold times common at Integrated Undersea Sur ...

The acoustic environment encountered in pulsed active sonar provides some of the most formidable challenges seen in modern signal processing. The confluence of strong bottom clutter, ownship Doppler spreading, and discrete mutual interference results in clutter leakage and sidelobes across beam and Doppler spaces. Platform motion causes clutter returns to be shifted in Doppler, leading to elevated ...

FIBER OPTIC TECHNOLOGY WHICH HAS BEEN DEVELOPING OVER THE PAST FEW YEARS, OFFERS SIGNIFICANT ADVANTAGES COMPARED TO WIRE DATA LINKS: LOWER LOSS, GREATER BANDWIDTHS, TOLERANCE OF ADVERSE ENVIRONMENTS, AND INSTALLATION FLEXIBILITY. THE INCREASING DATA TRANSMISSION RATES AND DISTRIBUTED PROCESSING ARCHITECTURES OF COMPUTER SYSTEMS REQUIRE HIGH SPEED DATA NETWORKS. MUCH COMPONENT TECHNOLOGY AND COMMER ...

This proposal seeks to demonstrate the feasibility of a virtual reality authoring platform that can deliver training modules for learners across the continuum of USAF skills. Content authoring in this tool does not require any programming expertise, and subject matter experts can create learning experiences by importing most digital files (2D and 3D). The learner then experiences a one-on-one expe ...

ACES IS AN INTEGRATED CONTROL SYSTEM WHICH USES CONVENTIONAL AND ARTIFICIAL INTELLIGENCE TECHNIQUES FOR AUTOMATED ASSISTANCE TO THE OPTIMIZATION OF AIR COMBAT COMMUNICATIONS CAPABILITIES. ACES CONTROLLERS ARE ELEMENTS OF EACH COMBAT WEAPONS AND C2 ENVIRONMENTS NODE WHICH CAN SENSE BOTH THE ELECTROMAGNETIC ENVIRONMENT AND THE QUALITATIVE DEMANDS FOR COMMUNICATIONS AT NODES AND WITHIN NETWORKS. ACES ...

The Navy’s Next Generation Surface Search Radar (NGSSR) system simultaneously supports the primary missions of surface search, precision radar navigation, and periscope detection and discrimination (PDD). The NGSSR system achieves these multiple missions through the uses of programmable waveform modes, unique waveform design and scheduling, and software programmability that take advantage of var ...