Award Data

We propose to build upon prior experience to develop hardware customized to a selected spacecraft application. This hardware would employ an adaptive mechanical resonance as a vibration control element. Two related uses of such a device are described; the tuned vibration absorber and the tuned mass damper. Hood Technology Corporation has built and tested such devices for other applications. We ...

The application of airborne and ground-based high power lasers as Directed Energy (DE) weapons is under consideration for the Joint Strike Fighter (JSF). Depending upon the integration selected for the laser, varied forms of turbulence is encountered alongthe beam propagation path, e.g. turbulent boundary layer, free shear layer, or wake. Flowfield turbulence creates a highly non-uniform and time- ...

Emerging high power airborne weapon systems will require multi-megawatt electrical power at voltages approaching 100 kV. Although multi-megawatt airborne generators are currently under development, they will not be able to directly generate the very highvoltage(s) needed for some weapon systems. Power converter system development, in the past, has typically focused on power electronics but the p ...

Numerical simulation of store separation from weapons bays or wing pylons is made difficult by the need to move the computational mesh and provide adequate resolution of flow structures that are changing with time. Recent advances in unstructured gridmethods have demonstrated that an adaptive grid, which is coarsened and/or refined to accommodate the motion of the store, is a viable approach for ...

To be effective in today's threat environment, the Air Force's Global Engagement doctrine asserts that personnel be responsive, innovative, adaptable, and agile. This will be particularly important for the Space-Based Infrared System (SBIRS) Low CrewChief. The SBIRS Low Crew Chief will have to manage a team with frequently changing personnel, groups of personnel with different specializations, a ...

This proposal suggests an approach to providing self-organizing network communications between the nodes comprising a nanosatellite constellation. Using the proposing firm's existing body of work on self-organizing ad hoc networks for 802.11 wireless LANsand miniaturized robotics platforms as a baseline, issues relating to ad hoc networking in a nanosatellite constellations will be identified, a ...

Current speech processing systems address the effects of channel noise andassume that all speakers are always in the same stress state. Neutral speechoccurs when the speaker has no task obligation other than to speak.Perceptually or physiologically induced speaker stress occurs in non-neutralconditions such as G-force, vibration, environmental noise, or emotion.Depending upon the type and degree o ...

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We propose a unique GaN-Al(sub x)Ga(sub 1-x)N heterojunction based CCD for imaging in the ultraviolet (wavelengths less than 365 nm). Our proposed device will be solid state, TTL compatible and in it's final configuration solar blind. The Phase I program is aimed at establishing the technical feasibility of our device concept. Our proposed CCD is in essence a GaN-AlGaN gated photoconductor with ...

We propose to develop software products for embedded, real-time monitoring of machinery health and failure prediction. The work will be based on new damage estimation, tracking, and prognostic algorithms that have been successfully developed in Phase I.Existing algorithms have been applied to data from the Boeing Reconfigurable Control and Fault and Identification System (RCFIS), an F/A-18 stabil ...