Award Data

The Global Positioning System (GPS) is a critical element in numerous military and commercial applications. It is vital that GPS receivers operate efficiently in hostile jamming environments and in the presence of interference caused by multipath. A critical need is the development of an application specific integrated circuit (ASIC) which will enable incorporation of advanced anti-jam technique ...

Research into voice transformation has been ongoing for over twenty years. In addition, there are many commercial products available. There has been very little research, however, into techniques for detection of voice transformation. Furthermore, objective metrics for the quality of transformed speech – which could serve as a basis for the detection of transformed speech – are practically ...

The overall objective of this project is to develop an effective and practical diagnostic/prognostic capability for turbine engine accessories. The Phase I effort demonstrated the effectiveness of combining high fidelity physics-based models with feature based algorithms to diagnose incipient faults in turbine engine accessories. The goals for Phase II are to fully implement these techniques and t ...

The objective of this project is to develop an autonomous cage sensor for a turbine engine bearing. The particular bearing of interest is a turbine engine inter-shaft bearing, a bearing that is inaccessible and therefore very difficult to monitor using traditional methods. The cage sensor must measure temperature and vibration, survive temperatures approaching 300 °C, and operate autonomously, co ...

Assuring success in all aspects of critical DoD missions is becoming dominated by the availability of high performance sensors. There is a family of sensors that operate with very improved sensitivities if cooled to very low (cryogenic) temperatures. For such sensors a mechanical refrigeration system (cryocooler) is required for successful sensor operation. Sest, Inc. proposes to advance it’s P ...

To achieve the optimal detection and classification of hidden targets, a tightly linked sensor and algorithm design effort will be required. The Phase I work described here focuses on using data from an existing sensor to explore how high-dimensional spatial, spectral and polarimetric data can be used to detect and classify hidden targets. The general approach will be to apply specific dimension ...

Nondestructive Evaluation and Inspection (NDE/I) methods, procedures, and enabling technologies generally provide means to nondestructively scan, image, sense, or otherwise evaluate characteristics of, or detect minute flaws/defects in, materials and/or component parts. These capabilities have become essential to help assure structural and functional integrity, safety, and cost effective sustainm ...

Two approaches are proposed for formulating a bond primer that can be cured at ambient or mildly elevated temperatures in 24 (preferably 12) hours. Both approaches use a light source to accelerate cure but the cure acceleration results from different chemical processes. In the first approach, a two pack system will be activated with light to release a base from a photolatent base that will subse ...

The combined need for performance, safety, as well as the requirement for zero VOC calls for an innovative approach for formulating a liquid shim resin that can be cured in less than 1 hour. A dual cure system hybrid system is proposed. A UV or near-UV visible light source will trigger a curing process by a free radical reaction. The parts will then be assembled (bonded) and an anionic process ...

Advanced radar signature modeling and signal processing techniques are required to support evolving radar technology in non-cooperative target recognition (NCTR). Modeling to produce NCTR techniques in both air-air and air-ground radar modes are required. The proposed research will first utilize the radar target modeling capability at Spectra Research and Georgia Institute of Technology to gener ...