基于 D-S 证据融合的发射机健康状态评估磁

摘要

针对雷达发射机健康状态评估在多种不确定性因素下的问题，构建了基于 D‐S 证据理论的多指标评估模型。基于综合考虑指标可测性，建立了新型的雷达发射机健康状态评估指标体系结构。通过采用一种改进的 D‐S 证据理论进行多指标数据融合方法进行雷达发射机健康状态综合评估，通过各实测数据隶属函数转化得到基本可信度分配关系，避免了在传统方法中评估指标基本可信度函数分配的主观性和局限性，最后利用改进的 D‐S 证据理论对各指标进行数据融合，实验结果验证了该方法的有效性。%Under the uncertainty factors condition of health status evaluation for radar transmitter ,it builds index eval‐uation model based on D‐S evidence theory .On the basis of comprehensive consideration for measurability ,it establishes a new structure for health status evaluation of radar transmitter .In order to avoid the subjectivity and limitation for the basic probability function allocation ,by using an improved evidence theory to multi‐index fusion method ,it gets the basic reliabili‐ty allocation through the membership function .Then applying the improved D‐S evidence theory to assessment fusion ,the experimental results demonstrate the effectiveness of the proposed method .