Award Data

DDL OMNI Engineering proposes to design a secure system for the continuous, real time acoustic measurement of towed array position relative to the host submarine. By using focused transmit and receive assemblies, pseudo- random spread broadband signals, and relatively high carrier frequency, the transmission level will be minimized so as to be virtually undetectable by a non-dedicated system ...

This proposal presents a system dynamics model of the weapons development and acquisition process. The system dynamics modeling methodology differs from conventional modeling techniques in that is easily incorporates the non-linear feedback linkages and decision-making functions that are so necessary for realistic simulations of management systems. The proposed model includes a representation of U ...

DGI CURRENTLY HAS LIGHTWEIGHT, LOW VOLUME ROTARY (I.E., WENKEL) ENGINES CAPABLE OF PRODUCING OUTPUTS IN THE 80 TO 150 HP RANGE. THESE ENGINES HAVE ALUMINUM HOUSING (BODIES) BUT OTHER PARTS OF THE ENGINE ARE STEEL MADE OR OTHER FERROUS METALS. DGI PROPOSES A PROGRAM TO REDUCE THE MAGNETIC SIGNATURE OF A 150 HP ENGINE. THIS WILL BE DONE THROUGH IDENTIFICATION OF THE PARTS OF THE ENGINE WITH MAGNETIC ...

RADIO RELAYS INSTALLED ON ELEVATED PLATFORMS SUCH AS KITES AND BALLOONS CAN EXTEND LINE-OF-SIGHT VHF AND UHF COMMUNICATIOS RANGE BEYOND THE HORIZON. THESE RELAYS MUST BE LIGHTWEIGHT, OPERATE FOR SEVERAL HOURS ON SELF-CONTAINED BATTERIES, AND, BECAUSE THEY ARE EXPENDABLE ITEMS, BE LOW COST. A REPEATER WILL BE DEVELOPED USING CURRENT LOW-COST TECHNOLOGY THAT WILL SIMULTANEOUSLY REPEAT THREE COMMUNIC ...

The continually evolving threat, including quieter submarines and the reemergence of third world diesels, has significantly impacted narrowband system performance. As a result, future passive acoustic detection performance in many new tactical environments will be primarilly reliant on broadband processing. The inability to perform effectively under these evolving requirements will pose a signific ...

This project proposes preliminary investigations to prove the feasibility of four techniques for improving Adaptive Beamforming performance in littoral environments. Emphasis is placed on tradeoffs between algorithm efficiency and performance. The littoral acoustic environment is characterized by near and far field targets and dense dynamic near and far field directional interference at man ...

A progressive system development is proposed which uses Bayesian methodology for combined detect, track, localize, and classify. The core paradigm focuses on detection followed by various estimation schemes to extract information on contact type, track, and location from the detector. A rapid prototype development using the Generic Multipurpose Processor (GMP) will provide optimal detection ...

The sensor processing requirements needed to counter today's threats pose a major challenge to the air avionics sensor operator (SENSO) due both to the complexity of the sensors and task load increases. Today's SENSO has limited opportunity for realistic anti-submarine warfare (ASW) practice and experience. In environments where experienced mentors are available, new operators are assisted ...

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