关键词: 信息融合, 态势估计, Rough集, Vague集, D-S证据理论

Abstract: In view of the event detection in situation assessment relies on domain knowledge, propose a method of situation assessment based on Rough-Vague set and D-S evidence theory. According to historical data of the target, establish a decision table. Through attribute reduction, generate a reduction event decision table, propose a method for obtaining Vague Set of the target event based on reduction decision table. According to the similarity of Vague sets, establish the evaluation coefficient to determine the outcome of events. The events which the target generate at different time is evidence, get the results of situation assessment based on the evidence combination formula. An example shows that the process of event detection doesn’t need to any domain knowledge, the method has a strongly focus ability to the uncertainty of the result for situation.

Key words: information fusion, situation assessment, Rough sets, Vague sets, D-S evidential theory