一种迭代修正的冲突证据改进方法

针对多传感器数据融合领域中使用D-S组合规则无法有效融合传感器不确定证据信息的问题,提出一种迭代修正的冲突证据改进方法。该方法通过计算证据之间的相互支持度和证据之间的相似度,综合度量每个证据的修正参数。利用修正参数修正证据,并通过D-S组合规则融合。然后,以融合结果作为参考证据,重新度量每一个原始证据的修正参数,修正原始证据再融合。通过多次迭代修正融合,直至最后两次的融合结果收敛为止,最后通过两组冲突证据验证了该方法具有很好的融合效果。

An Improved Method of Iterative Correction to Conflict Evidence

Aiming at the problem that the D-S fusion rules cannot fuse uncertain evidence information of sensors effectively in the field of multi-sensor data fusion, an improved method of iterative correction to conflict evidence is proposed. This method measures the modified parameters of each evident by calculating the mutual support and the similarity between evidences. The modified parameters are used to modify the evidence and the evidence are fused by D-S fusion rules. The fusion result are used as reference evident to calculate the modified parameters of each evident and re-fused. Iterate and amalgamate are performed until the last two results converge. Finally, it is proved that the method has a good fusion effect through two groups of conflict evidence.