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Bayesian sensor fusion: A framework for using multimodal sensors to estimate target locations and identities in a battlefield scene

Posted on:2004-04-09Degree:Ph.DType:Dissertation
University:The Florida State UniversityCandidate:Smith, Michael JosephFull Text:PDF
GTID:1468390011966358Subject:Statistics
Abstract/Summary:
We develop a Bayesian framework for battlefield situations that enables unified inference by incorporating multi-modal data obtained by multiple sensors. We concentrate on a military battlefield scene and on problems that arise in tactical decision-making. We propose a marked homogeneous Poisson process as a prior model for target placements in the scene. The sensor suite includes an infrared camera, an acoustic sensor array, a human scout, and a seismic sensor array. The likelihood functions for sensor data include new models for seismic classification and for a scout's spot report. We implement a Metropolis-Hastings algorithm that samples from the posterior distribution of the scene given the sensor data. We define a pseudometric on the scene space and indicate how its use can lead to optimal scene estimates. We present results of our methods applied to simulated battlefield scenes.
Keywords/Search Tags:Battlefield, Sensor, Scene
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