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DST与DSmT自适应融合算法研究

     

摘要

To solve the problem of fusion, both DST and DSmT have their own pros and cons under different conflicting situation. Based on the conclusion, an adaptive integration algorithm with DST and DSmT is proposed. By analyzing different algorithms, it is put forward that part of the conflicting information is redistributed according to DSmT, and the rest is normalized according to DST. Controlling factor is used to control the quantity of information which is dealt by two different ways adaptively. It's a new method which avo:.ds setting for threshold. The simulation results indicate that the new adaptive integration algorithm with DST and DSmT can deal with any conflicting situation efficiently. It converges quickly and costs less amount of calculation.%针对DST与DSmT在不同的冲突情况下,融合效果各有优劣,提出综合利用DST与DSmT进行信息融合.在对不同融合算法进行分析之后,提出将部分冲突信息根据DSmT进行重新分配,剩下的冲突信息根据DST进行归一化,并采用证据相似度作为控制因子,自适应地对两种冲突信息量进行控制,避免了对冲突阈值的预先设置.数值算例表明,文中提出的基于DST与DSmT的自适应融合算法可有效处理各种冲突情况,且收敛速度快,计算量小.

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