Award Data

Development of hypersonic aircraft and weapon systems has become a critical focus for the Department of Defense to maintain global strike and projection of force capabilities. Despite decades of research, traditional computational fluid dynamics (CFD) methods are either incapable of adequately predicting complex features in hypersonic flows or too expensive to be of practical use for vehicle desig ...

The existing HFBL (High-Frequency Bottom Loss) database has been recognized to be unsatisfactory due to its lack of physical underpinning and inability to provide consistent performance across frequency and space. The aim of the project is to replace the HFBL database with a geoacoustic model that leads to a smooth transition to the LFBL (Low-Frequency Bottom Loss) model at 1 kHz. To this end, thi ...

In unmanned underwater vehicles and underwater sensor networks underwater ranging is becoming of increasing importance. Laser-based ranging techniques offer the potential of high resolution and high speed. However, the challenging underwater environments could limit the performance of the optical ranging system. Specifically, (a) dynamic scattering particles distorts the optical beam in both time ...

Despite their widespread adoption, one of the main hurdles holding QCLs back from large volume manufacturing is the large cost of ownership. While QCLs, like most semiconductor devices based on III-V compounds, can leverage the economies of scale typical of semiconductor manufacturing, and therefore lower production cost at wafer and chip level, it is at the testing and packaging stages of QCL pro ...

The goal of this work is to demonstrate and validate a 3D acoustic propagation model for use in constrained environments such as harbors. The 3D model will be used to model system performance for 1) passive sonar, 2) active sonar, and 3) acoustic communications networks. This latter application is of primary importance in this Phase II Extended proposal. To accomplish these goals are sequence of f ...

Protocols used for communication suffer bloat from a variety of sources, such as support for legacy features or rarely used (and unnecessary) functionality. Traditionally, the Navy subscribes to a blanket adoption of a standard protocol "as is". Unnecessary features are active and can be accessed by both internal and external systems creating security vulnerabilities. PJR Corporation's (PJR's) Pha ...

Light absorption by aerosols is a key component to atmospheric extinction, and affects a number of processes relevant to the Navy. Satellite and other remotely sensed measurements can be strongly impacted by aerosols, obscuring targets and/or confounding interpretation of data products. Directed energy applications, including weapon and communication systems, are also impacted by absorption, which ...

This program will develop and demonstrate a novel modular, continuous synthesis platform that can be rapidly reconfigured to produce multiple classes of energetic materials. Continuous synthesis of energetic materials has clear safety advantages, but current approaches are slow to realize due to long process development timelines. The proposed program will develop a system integration and control ...

RIPACS will provide a novel capability for small UAVs, specifically Group 4 5 vehicles such as the MQ8 Fire Scout, extending their autonomy from pre mission planning through to landing. Being able to fly through a series of waypoints is a well established capability, but human operators are required to layout plans, update plans based on incoming data and react to contingencies. Requiring humans ...

The US Navy has identified refractory high entropy alloys (RHEAs) and metal additive manufacturing (AM) as enabling technologies to meet performance and sustainability targets for shipboard and aircraft systems. Key challenges include designing RHEAs and optimizing metal AM to achieve desired material properties for Navy propulsion applications. Developing materials and processes via traditional e ...