作者：余学锋, 张华
作者单位：中国华阴兵器试验中心, 陕西华阴 714200
关键词：传感器测量; 截断三角变换; 模糊模型; 概率分布; 分析
摘要：
为了在多传感器数据融合中实现各传感器输出误差分布归一化,根据模糊集合理论的模糊可能性方法,给出了从概率分布到可能性分布的截断三角变换,该变换可用于所有单峰对称概率分布。应用这个变换,建立了传感器测量误差的模糊集合模型。对于三种情况的传感器测量误差及分布,分别给出了对应的模糊可能性分布模型。同时,该可能性分布也可用于计算测量结果的置信区间。
Method and analysis for assimilated processing of sensor measurement error distribution model
YU Xue-feng, ZHANG Hua
National Huayin Ordnance Test Center, Huayin 714200, China
Abstract: In order to execute assimilated of probability distribution for fusion of various sensor measurements, a fuzzy representation, based on the possibility theory, could be preferred.A truncated triangular probability-possibility transformation to be applied to any unimodal and symmetric probability distribution was proposed.By applying this transformation, a fuzzy model of sensors measurement date was built.Three main situations of sensor with different probabilistic model had been considered, and for each situation, an adapted fuzzy modeling had been proposed.Moreover, this possibility distribution could also be built by the knowledge of confidence intervals associated to the measurement.
Keywords: Sensor measurement; Truncated triangular transformation; Fuzzy model; Probability distribution; Analysis
2009, 35(1): 37-39 收稿日期: 2008-6-12;收到修改稿日期: 2008-8-5
基金项目:
作者简介: 余学锋(1963-),男,江苏南京市人,高级工程师,硕士,主要从事仪器仪表与计量测试研究。
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