| Topic/Subtopic/Session
Name: "Channel Propagation Modeling & Equalization"
Recently, indoor localization has attracted considerable attention. More importantly, indoor channel measurements and models are very essential to accurate characterization of the ranging error for algorithm and system development. This paper provides the results of ultra-wideband (UWB) measurements and modeling performed for indoor geolocation targeted for military applications with emphasis on urban warfare, such as locating soldiers inside a hostile building.
The measurement campaign took place in Worcester, MA in a modern office building, a manufacturing floor, a residential house, and old office building. A total of 2934 UWB measurements at frequency band of 3-8 GHz were collected in four sites, with different characteristics to acquire an ensemble of building materials and create a database. These measurements were divided into indoor-to-indoor, outdoor-to-indoor, and roof-to-indoor conditions with two polarity of the mobile antenna representing an upright soldier and a soldier lying on the ground.
Using this database we provide novel path-loss models for the power of first detected path (FDP), which is essential for ranging applications. We also provide novel distance measurement error (DME) models based on FDP power that are useful for characterizing the behavior of ranging error and positioning algorithm development. Finally we provide traditional path-loss models for the total power, which are useful for communication coverage.
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