Robust Precision Geolocation

The objectives of the R&D proposed are to develop and evaluate innovative methods for fusing data from multiple diverse distributed sensors to perform high-accuracy emitter geolocation in the presence of multipath propagation and possible cochannelinterference. The proposed methods are optimum subject to constraints that enable programmable tradeoff of required bandwidth and covertness (of each sensor's data transmission) for emitter location accuracy. The approach assures efficient cost effectiveuse of collection assets. Many of the algorithms comprising the proposed geolocation system have been specified, and some have already been evaluated. This project will result in software prototypes for the emitter geolocation system for battlefieldapplications, and for a CCI Analysis and Source Location subsystem for commercial use in cellular drive-test equipment for network monitoring, analysis, and optimization.