Environmentally Robust Likelihood Ratio Tracker

For this work we propose to extend the environmentally robust version of LRT developed and tested during phase I to provide field level fusion at TSCs for ONR’s Littoral ASW Multistatics Project (LAMP). This version of LRT will be capable of processing contact messages resulting from active transmissions as well as passive tracking information linked to a TSC. At the TSC, LRT will operate by transforming contact message information into measurement likelihood ratio functions. These functions will be incorporated recursively into the LRT cumulative likelihood ratio surface. Naval Underwater Warfare Technology (NUWT) is a joint US and Canadian project with the goal of demonstrating improved effectiveness in UnderWater Warfare (UWW). One of the NUWT approaches is to develop and demonstrate technologies to automatically fuse tactical sensor information to form and maintain an improved ASW portion of the Common Tactical Undersea Picture. Metron proposes to support NUWT by adapting and applying the environmentally robust version of LRT to the field level data fusion and mult-sensor fusion. Our primary focus will be on EER, IEER, coherent sources, and the use of improved sensor performance prediction in LRT.