title: Identifiability and identification of trace continuous pollutant source.
abstract: Accidental pollution events often threaten people's health and lives, and a pollutant source is very necessary so that prompt remedial actions can be taken. In this paper, a trace continuous pollutant source identification method is developed to identify a sudden continuous emission pollutant source in an enclosed space. The location probability model is set up firstly, and then the identification method is realized by searching a global optimal objective value of the location probability. In order to discuss the identifiability performance of the presented method, a conception of a synergy degree of velocity fields is presented in order to quantitatively analyze the impact of velocity field on the identification performance. Based on this conception, some simulation cases were conducted. The application conditions of this method are obtained according to the simulation studies. In order to verify the presented method, we designed an experiment and identified an unknown source appearing in the experimental space. The result showed that the method can identify a sudden trace continuous source when the studied situation satisfies the application conditions.
authors.affiliation: College of Information Engineering, North China University of Technology, Beijing 100144, China.
authors.forename: Hongquan
authors.initials: H
authors.lastname: Qu
authors.affiliation: College of Information Engineering, North China University of Technology, Beijing 100144, China.
authors.forename: Shouwen
authors.initials: S
authors.lastname: Liu
authors.affiliation: China School of Aviation Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China.
authors.forename: Liping
authors.initials: L
authors.lastname: Pang
authors.affiliation: China Aero-Polytechnology Establishment, Beijing 100028, China.
authors.forename: Tao
authors.initials: T
authors.lastname: Hu
mesh_terms: D004785:Environmental Pollutants / Q000032:analysis*; D052918:Environmental Restoration and Remediation
chemical_list: D004785:Environmental Pollutants