Vector Sensor Array for Torpedo Defense Navy STTR FY2005 Sol No.: Navy STTR FY2005 Topic No.: N05-T030 Topic Title: Vector Sensor Array for Torpedo Defense Proposal No.: N054-030-0190 Firm: 3 Phoenix, Inc. 9607 Jomar Drive Fairfax, Virginia 22032-2014 Contact: Russell Jeffers Phone: (703) 795-8574 Web Site: www.3phoenix.com Abstract: For the problem of torpedo detection, classification and localization, acoustic vector sensors provide the capability for significant performance improvement. In particular, acoustic vector sensors are inherently directional. Vector sensors are generally defined as co-located pressure sensors and directional displacement, velocity, or acceleration sensors (all are generally referred to as velocity sensors). Moreover, vector sensors can provide unambiguous bearing in a linear array configuration. The ability to provide unambiguous bearing localization is important for torpedo defense. 3 Phoenix proposes novel signal processing technology for the suppression of interference and noise on a linear array of vector sensors. It is expected that the technology developed under this STTR will provide a quantum improvement in torpedo detection and localization. Benefits: It is anticipated that the proposed Phase I investigation will demonstrate that a linear array of vector sensors will provide superior torpedo detection, classification and localization performance, especially ambiguity resolution, compared with a hydrophone array of similar aperture. Also the research will yield a basic design for a torpedo defense vector sensor array. This innovative system will be designed to be power efficient, scalable, and responsive to Navy requirements for cost and performance. Generally, the technology is applicable to aero-acoustic applications such as surveillance and battlefield surveillance, which have a challenging environment due to ground reflections. The technology is also applicable to microphone arrays for teleconferencing which operates in an environment with multiple reflecting boundaries. Return