Forward Looking Collision Avoidance and Sub-Bottom Sensor for Conceptual High Speed Submersibles
Small Business Information
Information Systems Laboratories, Inc.
10070 Barnes Canyon Road, San Diego, CA, 92121
Abstract"To meet the submarine threat in the littoral, high-speed submersibles will require additional information from target electric (E) fields to improve Detection Probability, reduce False Alarm Rate, and provide tracking information, in a turbulent regimewhere acoustic sensors encounter difficulty. Recent advances in processing E-field signatures of submarines will help mitigate active silencing measures and provide the potential to track and avoid them. New electrode designs and low-noise amplifierscan be configured into candidate E-field sensors for evaluation on high-speed submersibles.During Phase I, threat submarine E-field signatures will be investigated and background noise, as seen from high-speed submersibles, will be modeled to provide signal-to-noise ratios for candidate sensor performance estimates. The effects of turbulence onE-field signature detection during high-speed operations will be approximated. Current Fourier processing techniques will be compared with the new Hilbert-Huang Transform and Empirical Mode Decomposition methods. E-field sensors will be designed that arecompatible with high-speed submersible configurations and their primary sensor concepts. During Phase II, an E-field sensor, based on designs from Phase I, will be fabricated and sea-tested at speed against a calibrated submarine target. During PhaseIII, development and integration of the sensor into high-speed submersible designs will take plac
* information listed above is at the time of submission.