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 ...

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 ...

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 ...

We have designed an innovative adaptive-optics system to provide correction for laser beam distortion by large atmospheric turbulences such as in an aircraft boundary-layer. The adaptive-optics design is applicable to laser-based infrared countermeasure systems, laser rangefinders, and laser target designators. Our design is a new approach that specifically address large-scale turbulence in t ...

The Monolithic Analog Signal Conditioner (MASC) project described by NSWC TM 951128 dealt specifically with many of the issues associated with developing a high bandwidth, high dynamic range application specific integrated circuit dedicated to the function of conditioning sensor signals prior to digitization. Since most of the MASC candidate sensor signals are destine to be digitized, there ...

CTI and its subcontractors, BDM's Defense Enterprise Integration Team and Sonalysts, Inc., propose to apply a hybrid task analysis methodology to model critical functions in the CIC and derive measures of performance by individuals and teams. The approach is a hybrid in that it joins cognitive analysis techniques with methods typically used to in business re-engineering studies. In addition, it in ...

Today's workforce requires higher skill levels than ever before. This necessitates effective training technologies. A key component of the training process is assessing trainee performance and critical learning needs. Traditional assessment tools have been criticized as measuring test taking skills more than problem solving skills. A number of approaches have been developed to address this wea ...

The specific innovation is to use a single optical fiber sensor/signal processing technology to measure three parameters, (i.e., temperature, pressure, and flow) with resolution adequate for shipboard and industrial applications. The Navy needs an all-optical sensing systems in ships of the future to minimize the vulerability to electromagnetic interference. The project objectives are to: opti ...

The problem is defined as finding a method to leverage application software into computer-based training (CBT) about mission planning, especially when using Deployable IUSS systems. The Phase I research is based on the use of IconAuthor authoring software for IUSS CBT; and the use of X-Windows as the GUI for major IUSS applications. The objective is to verify that an application can be crea ...