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RIA scientists have developed a numerical scheme for the detection and classification of complicated signals in highly noisy environments (negative SNR). This method performs DIC using nonlinear signal information based on techniques developed from the theory of Chaotic dynamics. Preliminary tests on real-world data sets, recently supplied by Navy personnel, indicate that this method will likely ...

Detection of natural, variable objects requires general features that can be extracted from any image. Human vision is capable of segmenting images and recognizing objects in radiographs despite the summation of all objects in the inspection volume in the image plane. Thus, the features important in human perception provide a guide for automatic image processing. The initial features selected f ...

Current production ladar system and components involve coherent optical system using pulse waveform. "bile demonstrating impressive accuracy and resolution, the system are coupler, difficult to manufacture, and thereby erpensive. An alternative approach is being investigated for short range system which uses an FM/CW waveform for ranging with incoherent light detection. This approach should prod ...

Frog Embryo Teratogenesis Assay: Xenopus (FETAX) is a 96-h, whole-embryo bioassay designed to detect potential developmental toxicants. The primary goal of this research is to improve the predictability and increase the overall utility of FETAX as a screen for developmental toxicants that pose a hazard to human health. Since Xenopus laevis embryos lack mixed-fliriction oxidase metabolism (cytoch ...

The use of night vision devices (NIVUs) by US Army foot soldiers, aviators, and drivers of combat and tactical wheeled vehicles has enhanced operations at night by allowing increased mobility and potentially safer operations. With this increased capability in the night environment has come an increased exposure to the hazards of that environment and the risks that the command structure must manag ...

Tactical military hardware is tested and evaluated to assess performance and ensure proper operation in its anticipated field environment. A key technique involves testing the hardware placed on a test platform isolated from the laboratory environment and associated dynamic disturbances. In order to accurately assess this performance, it is vital that precise environmental disturbances are emula ...

3-D visualization of multiple RF fields requires innovative display techniques to overcome a number of technical challenges, including surface polygon reduction for increased graphics speed, and discrimination of multiple overlapping surfaces. The innovation in the present proposal derives from the PI's recent development of a 3-D tactical display for the Navy in which the interaction of sonar ac ...

This research project will investigate the use of optical-fiber sensors within a solid rocket motor case. THese sensors will be multi-functional and possess the ability to measure displacement (or strain) and temperature. They will be capable of embedment "in-site" or can be bonded to the exterior of motors that have already been manufactured. If successful, the effect of forces exerted on the ...

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