Award Data

Geometrically constrained underwater environments abrogate the simplifying acoustic modeling assumption that energy can be modeled in a two-dimensional vertical plane. In these environments, current tools to perform navigation and passive and/or active sonar mission planning are inadequate. Furthermore, channel complexity makes it difficult to model acoustic communications. HRC proposes to upgrade ...

A system to covertly communicate in underwater acoustic shallow water environment for mine countermeasure is described. Techniques for LPD and directional communication are suggested.

The objective of the proposal is to reduce the cost of fabrication of sapphire optical hyper-hemispheres for submarine masts. Due to the nature of sapphire, deriving complex geometries from grown boules using current conventional fabrication techniques is one of the major contributors to cost. Removing excess material requires long diamond grinding cycles. New advances in ultrasonics have been inc ...

This proposal considers technologies and methods to realize low probability of detection (LPD) acoustic modem systems using low SNR techniques, camouflage techniques, and directionality to enhance covertness. Phase I baseline designs will be recommended based on past and new work of the contractor

This project involves the development of hull mounted acoustic motion (accelerometer) sensor with increased sensitivity (+6dB), greater stability, and low cost for hull mounted sonar arrays. Investigations and developments of sensors without and with preamplifiers is considered.

During Phase I, HMI concepts were developed to facilitate work load sharing, collaboration, and interoperability of tools and displays. Attention was given to simplicity and efficiency to reduce the number of menus and button clicks, eliminate windows, and simplify controls to be more intuitive.In Phase II the conceptual displays will be developed into a fully functioning prototype and integrated ...

The focus of Phase II shall be to demonstrate the feasibility of alternative seaming technologies for military use. Building on the work in Phase I and the Phase I Option, the NWU Parka Type I shall be the demonstration model for comparison purposes of technology advances. This high cost garment utilizes both traditional stitching and complex seam sealing techniques, and is an excellent example fo ...

Applied Radar proposes to develop a high-gain low cost, size, power and weight (low-CSWAP) tactical common data link (TCDL) antenna for the Firescout and Predator UAVs. The improved TCDL antenna will support 6 or more nodes of high-gain full-duplex communication at 21.42 MBPS in a star network configuration with 360 degree coverage out to 110 nm slant range. In Phase 1, we will design, fabricate a ...

BTech proposes the design and development of a low-profile, broadband, shear-mode piezocrystal acoustic transducer for deep submergence applications. The Phase I effort considers evaluation of design variants of shear mode transducers with increased pressure operation/tolerance and tradeoffs associated with the same. Design feasibility is supported with calculations of expected performance and whe ...

A multi-band dual-aperture SATCOM antenna is proposed to support rotary-wing aircraft thru-rotor performance at X, Ku and Ka-bands including Ku-band TCDL as an option. Our proposed effort focuses on a low-cost design with reduced height and leverages existing aperture and radome technology from our prime contractor partner Lockheed-Martin. It also leverages existing digital modem technology develo ...