Award Data

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Computer-based training has primarily focused on the acquisition and application of procedural knowledge, emphasizing development of skilled performance of tasks. In many important Naval roles, however, the ability to apply more general concept to specific novel problems is even more important than procedural skills. Sonar operators, who must reason about acoustic oceanography and sensor/s ...

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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 ...

Composite materials find increasing importance as structural materials for modern lightweight and low cost aircraft. Structures using composite materials essentially rely on the integrity of adhesive bonds for their structural stability. A major limitation in employing composites in critical structures is that the existing methods of testing the integrity of structures are not adequate to a ...

The overall objective of the proposed research is to develop bistatic detection techniques for shallow water near land warfare operations. The focus of our proposed research is to achieve detection enhancement in environments characterized by dense multipath through application of optimal detection theory coupled with accurate acoustic modeling. The first specific objective is to consider alternat ...

The standard 1553 Bus Controller and related engine test facility improvements will give NAPC a standard controller interface for testing engines equipped with FADECS. This effort will make hardware and software improvements to the operator station to add real-time data display, consistent operator test control, record/playback functions and rapid configuration change capabilities. The application ...

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 ...

Amron and its subcontractor BBN propose to show the feasibility of a broadband time-domain adaptive beamformer (ABF) to suppress uncorrelated narrowband sources and multipaths from correlated impulsive sources. The work is motivated by political developments which have emphasized warfare in littoral areas, where a key problem facing active sonar is scattering from topographic features. Activ ...

The objective of this program is to develop an adaptive lumbar support and alignment system that will serve to reduce spinal injuries to the lower spinal column for aircrew members involved in aircraft ejections or high impact helicopter crashes. Fractures of the lower thoracic and upper lumbar vertebra are identified as the most dominant major type of injury that occurs during the high accelerati ...