SBIR-STTR Award

During the Phase I effort the team will collect high frequency real world data to demonstrate auto detection and classification of high frequency emissions using our proven U.S. Navy evaluated acoustic intercept detection and classification technology. Using multiple sensors will also demonstrate our ability to generate a bearing to high frequency emissions. We will leverage previously developed low power processing capabilities and will develop an innovative modular design. These modules will consist of hardware, firmware and software to support integration into a MapTac swimmer navigation system for the Phase II at-sea demonstration. The work in Phase I will support the smooth transition to the Phase II prototype system which will demonstrate our capabilities against a wide variety of threat emissions.

Benefit:
One of the most significant contributions of this program will be the dual-use of the technology to support the NOAA marine fisheries. NOAA is responsible for stock assessment of marine mammals within the U.S. Exclusive Economic Zone (EEZ). NOAA Fisheries southwest has recognized the significance of using passive acoustics for conducting stock assessments. Today NOAA uses ships and towed arrays to conduct acoustical surveys. The low power automated detection and classification technology developed under this program would allow NOAA to use inexpensive unmanned AUVs to conduct these same assessments at a fraction of the cost.

Keywords:
Sensors, Sensors, low power, Advanced Processing, Hand Held, acoustic intercept, False Alarms

Under the Phase II program we will develop and demonstrate a wide band automated handheld sonar acoustic intercept system for divers. The Phase II system will automatically detect and classify active sonar emissions and will alert the diver when threat sonars have been detected. We will provide the diver a bearing to the source transmission and also provide him with a threat zone which must not be crossed in order to ensure the diver is not detected by the active sonar. Our open architecture approach will ensure that our system can be readily integrated into the next generation Tactical Underwater Navigation System (TUNS) or any other platform desired by the Program and Transition Sponsors.

Benefit:
The research and development under this program will support autonomous sensor technology and will also improve automation to support manpower reduction.

Keywords:
localization, Sonar, detection, intercept, Automated, Classification, Bearing