Award Data

ABSTRACT:The reduction of aerodynamic/hydrodynamic noise caused by violent turbulence is of strategic importance to many military systems. These include modern fighter jets, unmanned weapons with sensitive electronics, and surface and underwater vessels. For all these systems, aerodynamic or hydrodynamic noise can produce unacceptable levels of operational loads or acoustic vibrations, or be detri ...

As part of an effort funded by HEL-JTO, we recently demonstrated advanced quantum well diode laser designs with enhanced confinement operating at 1500 nm that substantially advanced the state-of-the-art with regard to efficiency, high operating temperature and beam quality. Similar enhanced confinement designs will be implemented at 808 nm to greatly improve both electrical-to-optical efficiency a ...

VIP Sensors proposes to develop a very low noise, highly sensitive Fiber Optic Vector Sensor (FOVS) System packaged in a size - A sonobuoy. The FOVS includes a triaxial optical accelerometer, an omnidirectional optical hydrophone and an optical compass. Only a pair of single mode optic fibers interconnects the fully passive vector sensor located below sea level to the sonobuoy"s Surface Electronic ...

The US Navy has a requirement for a Reliable Acoustic Path A-sized sonobuoy system. The major challenge is to reduce sensor electronic noise to exploit the environment. Additionally, A-size introduces numerous technical challenges for flow and vertical motion induced noise mitigation, for data telemetry, and for packaging. Progeny Systems Corporation teamed with UnderSea Sensor Systems, Inc. pro ...

SA Photonics proposes the development of the NeptuneLITE free space optical communication system for aircraft interrogation of sonobuoy fields. NeptuneLIITE enables high data rate (>1 Mb/s) at long range (>40 nautical miles) in a compact form factor with very low cost per sonobuoy.

Aircraft On-Board Oxygen Generating System (OBOGS) selectively filters compressed air from the aircraft's engine to remove nitrogen and other gaseous contaminants to provide the aircrew with an oxygen enriched breathing gas. During shipboard operations, Navy aircraft are particularly vulnerable to excessive levels of toxic byproducts from ingesting the jet exhaust from other aircraft. Under s ...

Signals intelligence systems use the established Shannon-Nyquist approach of signal acquisition, setting a sampling requirement based on data rate. This sampling approach is generating operationally impractical amounts of data, most of which goes unused or arrives late. The conventional rate of data-to-information (DTI) conversion is low, and there exists high demand for a solution. A new approach ...

We are proposing a Wirelessly Powered Smart Tag (WiPST) that integrates a miniaturized novel antenna with a high efficiency rectifier circuit. Our proposed design integrates our latest breakthrough developments in highly efficient rectifier design and wireless power transfer unit. We will leverage our years of experience in designing wireless sensor systems and packaging for harsh environments to ...

TDA"s research during this SBIR will incorporate the two main types of RFID technology: passive and active RFID systems. During previous research, TDA has shown that passive systems present challenges with respect to effective read range, as well as performance in a metal-rich environment. However, TDA believes that the performance of these systems can be enhanced via beam forming, impedance match ...

Cryogenic heat exchangers for cooling gaseous helium are hampered by the fact that helium is a low-density gas. As a result, heat transfer coefficients tend to be low. To compensate for this, Ultramet will design and fabricate an open-cell foam-based heat exchanger using technology that was originally developed for high-power microwave integrated circuits for naval radars. In that application, hea ...