随机时差证据及海洋地震信息判定级融合问题的研究  

Random Time Evidences and Marine Earthquake Informaiton Fusion at the Determinant Level

作　　者：徐凌宇[1] 石绥祥[2] 

机构地区：[1]上海大学计算机科学与工程学院,上海200072 [2]国家海洋信息中心,天津300171

出　　处：《海洋通报》2005年第5期74-78,共5页Marine Science Bulletin

基　　金：国家科技攻关项目2004-BA608B-030303;2001-BA608B-0808;上海市E研究院2003-1:上海市科技发展基金205386资助

摘　　要：由于各自独立证据源采集信息的种类、时刻和周期都不同,组合时多元证据间时差呈随机性,若直接使用D-S组合规则,可能产生与知觉相悖的结果。文中使用时效函数衡量证据有效性与时间关系,并将其引进信任函数,用于地震信息判定级融合评估,仿真实验取得有意义结果。Multiple independent sources always collect information at different time. So the traditional Dempster-Shafer theory is unadapted for the combination of multiple evidences from different time and their intervals are random. Time-effect function is defined to describe the changing credibility over time and joints in the belief function. Then it is applied to the marine earthquake information fusion at the determinant level. The simulation results are significant compared with the traditional D-S theory.

关 键 词：信息融合 DEMPSTER-SHAFER理论 信任函数 动态问题 海洋地震信息 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]