Award Data

Alameda Applied Sciences Corporation (AASC) proposes a three phase effort with the ultimate goal of producing a marketable diamond switch suitable for several pulsed power and other applications in the defence arena. The presently used spark gaps have several drawbacks including switch jitter, large and variable inductance, lifetime and physical size. A low inductance solid-state switch capable ...

This proposal seeks to demonstrate the feasibility of using impulse radar techniques to detect and identify concealed weapons. It relies on the fact that a radar impulse will excite natural electromagnetic resonances which characterize the size, shape and material composition of an object. These resonances are present in the scattered transient return from the object and can be extracted by algo ...

Acroamatics, Inc. proposed to perform research to develop a method permitting the telemetric transmission of avionics bus data from an air vehicle under test to a remote receiving station using a narrower radio frequency (rf) bandwidth than presently required. Increasing use of digital avionics in aircraft and reduced availability of rf spectrum make this an important topic of development. The s ...

Traditionally, kinematic measurements have been made using electro-mechanical transducers which produce a signal which is proportional to the parameter being measured. This approach is unlikely to be replaced by optical tracking techniques, but there are many instances where it is impractical (or even impossible) to attach a mechanical device to the subject. The blades of a helicopter rotot are an ...

The Second Generation Helicopter Analysis System (2GCHAS) has been developed to provide a common framework for interdisciplinary design and analysis of rotorcraft systems. A current limitation is the level of sophistication available in modeling advanced control systems. Advanced Rotorcraft Technology will utilize the Phase I effort to carefully define the specifications, develop the algorithms, a ...

We propose to develo a numerically efficient rotorcraft trim and transient response algorithm. The algorithm is intended for application in a periodic dynamic system with a large number of degrees of freedom as is commonly the case in current comprehensive rotorcraft analysis codes (such as 2GCHAS). The innovation of this proposal can be summarized as follows: 1) Utilizing Model Order Reduction ...

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Aerovironmet Inc. proposes to undertake Phase I of DDARPA SBIR 962-080 to develop and assess operational utility of micro air vehicles (micro AV) for unique military applications. We will downselect from nine general categories of airframes, four general categories of propulsion systems to a minimum of five conceptual designs. These design concepts will be evaluated against notional mission sce ...

Diesel injection is known to influence the combustion efficiency and the production of particulate and NOx emissions. Recent developments in the fuel injection including split injection wherein the fuel is injected in two or three pulses rather than with a single injection have led to significant improvements in terms of the reduction in the emissions. To date, the experimentation on these metho ...