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Crowd sourced mapping with robust structural features
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Heading constraints in a particle filter
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Method to scale inertial location data using directional and/or scale confidence constraints
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Methods resolving the elevation of a tracked personnel or assets
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Methods for improved heading estimation
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Fusion of sensor and map data using constraint based optimization
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Locating, tracking, and/or monitoring personnel and/or assets both indoors and outdoors
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Method and system for locating and monitoring first responders
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Locating, tracking, and/or monitoring personnel and/or assets both indoors and outdoors
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