Award Data

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

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 ...

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 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 ...

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.

The opportunity of interest is the introduction and application of a bistatic tool set for both surface and submarine Mid-Frequency (MF) active sonar systems to enhance anti-submarine warfare (ASW) capability in strike group or coordinated surface and submarine ASW operations. The ability to localize threat submarine forces in a battlefield scenario by judicious application of bistatic capability ...

Navy combat systems employ many underwater acoustic sensors to detect submerged threats. The performance of these sensors must be maintained at high levels for the combat system to perform effectively. These sensors are exposed to harsh environments and operating conditions that, over time, compromise sensor health resulting in degraded detection performance. Additionally, excessive radiated noise ...

This proposal is for the development of a unique, ultra-portable, low-cost, hand-held high-pressure cold spray system for repairing cracks on aluminum structures on surface ships that were damaged by corrosion, based on a patent-pending cold spray device which has already be developed for shop or laboratory based applications. In the cold spray process, powder particles are accelerated by a supers ...

Propel will research, investigate, evaluate and rank fiber, yarn and textile technologies with the potential to be embedded into uniform items in order to design and develop a sailor garment system that enables linkage of ship systems to the human in the near, mid and long term.

The design and development of compact, low frequency, broadband acoustic source technology is considered for the Mobile ASW Training Targets. The Phase I effort considers evaluation of several novel low frequency transducer designs and exploration of the associated trade space, including performance, size and cost. Design feasibility is supported with calculations of expected performance and by pr ...