Abstract:Active sonar clutter usually appears on a display as an amalgamation of point scatterers that exhibit both object and individual reflective and kinematic behavior. We propose to demonstrate the feasibility of constructing a realistic active sonar clutter model based on a few generalized concepts to… more
Abstract:Experimental and computational studies have indicated the benefits of fish swimming propulsion for efficiency and fast maneuvering capability. The biological paradigm of using unsteady body motion to generate and manipulate flow vorticity for desired hydrodynamic thrust marks a shift from the… more
Abstract:Applied Physical Sciences Corp. (APS) will develop a deployable marine mammal mitigation system. The system will use vector hydrophones to passively detect, track, classify, and localize vocalizing mammals. Wavelet and conventional spectral analysis methods will be coupled to species-specific… more
Abstract:Existing multistatic airborne ASW systems require high power sources and are unable to exploit the significant forward scattering strength of a submarine target due to the blinding presence of the direct blast. Time reversal (TR) is a recent method for focusing acoustic energy at a point using… more
Abstract:The overall intent of this project is to develop a series of vector sensors for thin-line submarine towed array applications and down-select one for full evaluation via a comprehensive test campaign. Once the sensor is perfected, a production run of eight sensors will be performed so that a… more
Abstract:The overall intent of this project is to develop a triaxial pressure-acceleration vector sensor that is suitable for reliable acoustic path sensing. The sensor is intended to have a nominal size that is commensurate with an AN/SSQ-53 DIFAR sonobuoy wet-end transducer, have a 6 km submergence depth… more
Abstract:Applied Pulsed Power, Inc. (APP) proposes to develop a solid state switch for high voltage sub-microsecond pulsed power, using silicon carbide devices. The objective of the solicitation is to develop a compact, solid state pulsed power switch capable of switching 20-50 kV, and I > 5 kA with low… more
Abstract:High power, high voltage, high current, solid state switches are needed for pulse power switching in RF accelerators. However, currently available switches have poor efficiency when used for short pulse applications. The development of a high current switch with a fast turn-on time would address… more
Abstract:We propose an optical imaging system utilizing a pair of MEMS mirrors to achieve a wide field of regard and zooming characteristics. This system is anticipated to meet the challenging constraints put forth in this program: a total field of regard of up to 80 degrees, fast scanning speeds, and up to… more
Abstract:A MEMS based multicolor beam steering system for generating 2D spot arrays has been demonstrated. For effective quantum computation applications, the optical system requires further optimization and refinement. In phase II, parameters such as beam scanning frame rates, insertion loss, system… more
Abstract:The mitigation of mainlobe jamming is essential to missile defense radar performance. Applied Radar is currently investigating distributed aperture and adaptive processing architectures that promise a new generation of advanced radar performance. Our proposed program will research the application of… more
Abstract:The design and development of phased-array radars requires the integration of solid-state components and adequate thermal mitigation within the array lattice constraints. The current trend is towards increasingly planar designs and a reduction in the array depth. The MDA SPEAR program is one example… more
Abstract:Long-duration wide-area surveillance missions increasingly are space-based. MEO orbits offer space-based radar systems more time on station, but require very large array apertures on the order of 100m in diameter. Achieving larger apertures with smaller, lighter launch packages and stable on-orbit… more
Abstract:To meet the need of the Navy in a hyperspectral imaging system with an automated analysis algorithm for optimum detection of specified target features, Applied Science Innovations, Inc. proposes development of the Coded-Aperture Hyperspectral Imager with Real-time Spectral Band Optimization… more
Abstract:To meet the need of the Navy in fabrication and measurement of conformal windows such as toroidal to precise optical tolerances from ceramic materials, Applied Science Innovations (ASI) proposes development of the Closed-Loop Fabrication of Free-Form Optics (CLF3O), building directly on ASI's… more
Abstract:Applied Science Innovations, Inc. proposes development of the real-time, Advance-Warning System for Active Detection of Snipers s (AWADS). Unlike existing systems that react after the sniper takes a first shot, the novel AWADS electro-optical system will detect a potential sniper at a distance,… more
Abstract:To meet the need of the Army in a semi-active laser seeker with increased field of regard for and narrow instantaneous field of view, Applied Science Innovations, Inc. proposes development of the Wide-Angle Optical System for Strap-down Seeker (WAOS3 ). Semi-active strap-down seekers in tactical… more
Abstract:Applied Science Innovations, Inc. proposes development of the Coded-Aperture, Laser Irradiation Tolerant Imaging Sensor (CALITIS) - a novel, computational imaging technique to protect CCD sensors from damage by frequency-agile pulsed lasers. In a conventional camera, collimated laser beam converges… more
Abstract:Advanced rechargeable battery technology providing higher energy densities and higher specific energies is being sought by the OSD to extend the range and capability of small electronic systems. In this proposal, an anode material is proposed based on carbon nanofiber alloyed with silicon. While… more
Abstract:This proposal describes the preliminary development of passive wireless surface acoustic wave (SAW) based humidity sensors for NASA application to distributed humidity monitoring systems. SAW devices are a platform technology for passive wireless sensing of numerous possible measurands. SAW… more
Abstract:The development of fast and robust learning models which can work in non-stationary environments or scenarios with rapidly changing goals is becoming a critical task in both military and civilian applications. The objective of this proposal is to develop new mathematical/computational models based… more
Abstract:Applied Technology Associates (ATA) proposes innovations in the design and mechanizations of space gimbals and their electrical and pointing controls. This new paradigm for a gimbal design is denoted the Next Generation Gimbal (NGG) and yields a gimbal system that is lighter, uses less power, and… more
Abstract:Proposed Missile Defense Agency (MDA) systems, such as the Space Tracking and Surveillance System (STSS), require high precision gyroscopes for high-resolution Line of Sight (LOS) stabilization and pointing control for the acquisition, pointing and tracking (APT) systems. To achieve these mission… more
Abstract:Proposed Department of Defense (DoD) space surveillance and weapons systems, such as the Space Tracking and Surveillance System (STSS), require highly accurate inertial knowledge in absolute location and angular orientation in order to cooperatively track objects at significant distances. Current… more
Abstract:The USAF is seeking to replace UV-susceptible adhesive that bonds the solar cell to a cover glass for enhancing conversion efficiency and to improve durability. Adhesives used for space solar modules need to meet many critical requirements including adhesion strength, optical transparency, thermal… more
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