Least squares estimation techniques for position tracking of radioactive sources

摘要: This paper describes least squares estimation algorithms used for tracking the physical location of radioactive sources in real time as they are moved around a facility. We present both recursive and moving horizon nonlinear that consider change source deviation between measurements model predictions. The to estimate position consist four count rates reported by different gamma ray detectors. There is an uncertainty due large variance detected rate, background rate. work represents part suite tools which will partially automate security safety assessments, allow some assessments be done remotely, provide additional sensor modalities with make assessments.