Method for optimizing minimum distances of four or more types of even number information

The invention relates to the technical field of multi-source information fusion and selection, in particular to a method for optimizing minimum distances of four or more types of even number information. The method comprises the steps that a time sequence of measurement information is obtained; the minimum distances of four or more types of even number information and an optimal mathematical model are established; optimal information values are calculated and determined. By using the method, unique optimal information can be selected from more than three types of multi-source information whether an odd number type or an even number type. The method plays a great role in the field of spacecraft multi-source information processing. 本发明涉及多源信息融合选择技术领域，具体是4种以上偶数信息最小距离选优方法。包括获取测量信息的时间序列；建立4种以上偶数信息最小距离和选优的数学模型；计算确定最优信息值等步骤。使用本发明无论是奇数种还是偶数种3种以上多源信息，恒能选到唯的最优信息。在航天器多源信息处理领域发挥了重大作用。