Award Data

This project is the development of a single crystal underwater acoustic modem transducer for Unmanned Underwater Vehicles (UUV) which is compact in size, operates at low to moderately low center frequencies, in a broad band frequency range to accommodate state-of-the-art binary, FSK and spread spectrum signaling schemes that promote covertness. The device exploits the high coupling coefficient an ...

Composite structures for submarines require high strength and high fracture toughness to survive underwater shock blasts. These structures have historically been built using rubber-toughened epoxy pre-impregnated (pre-pregs) reinforcements. However, experience has shown that pre-pregs can be difficult to work with, especially for thick section parts, and require expensive, size-limited, autoclav ...

Underwater acoustic modeling plays an essential role in the design, development, test, and operation of sonar systems. Active acoustic clutter can increase the sonar false alert rate or equivalently decrease the probability of detection/classification, and is a key issue in the development and utility of active sonar systems. The ability to predict reverberation and clutter is inseparably tied to ...

A microminiature radio sensor system may be decomposed into antenna, RF, and digital subsystems, plus support elements (power, case, datalink, storage, etc.). The difficult aspect of the requirements is the simultaneous requirement for small size, wide frequency coverage, low power consumption, dynamic range, and integral datalink. Most are classical tradeoffs for radio system designs, but newer ...

Reducing cosite interference on an aircraft requires a top-down system engineering approach. This begins with collecting performance data on all equipment involved, computer modeling the interference for each equipment pairing to identify specific interference sources and levels, defining the amount of mitigation necessary for each pairing, and designing a subsystem that provides the needed mitig ...

DESIGN AND DEVELOPMENT OF A PROTOTYPE DURABLE, STABLE, ANTIREFLECTION COATING WITH EXTENDED WAVELENGTH CHARACTERISTICS, LOW ABSORPTION, AND HIGH TRANSMISSION, SUITABLE FOR EXTERNAL WINDOWS AND INTERNAL OPTICAL ELEMENTS OF STAR SENSOR AND OTHER WIDEBAND SYSTEMS.

TAC PROPOSES TO CONDUCT A STUDY TO EVALUATE THE COMPARATIVE EFFECTIVENESS OF VARIOUS FORWARD-LOOKING AUTONOMOUS SENSORS AND ALGORITHMS FOR TLAM-C. THE CURRENT TLAM-C USES A TERRAIN MAPPING RADAR ALTIMETER AND CORRELATES THE SENSED AREA AT KEY WAYPOINTS WITH A STORED DIGITAL REPRESENTATION OF THE TERRAIN AREA AT THE WAYPOINTS TO PROVIDE MID-COURSE AND TERMINAL GUIDANCE CORRECTION TO THE INERTIAL NA ...