摘要
应用信噪比与平均运行长度2种方法,分析了自相关过程由时间序列模型AR(1)描述时,残差控制图对过程均值变化的检测能力。结果表明,信噪比是控制图的检测能力的一个良好指标,在合理参数0.1≤l≤1-范围内,残差EWMA控制图对过程均值小偏移较灵敏,对过程均值大偏移的检测能力略差于残差Shewhart控制图。
However, the residual charts do not have the same properties as the traditional charts. On the basis of signal/noise and average run length, this paper analyzes the detecting capability of mean shift when the process model is AR（ 1 ）. The results show that signal/noise is a good indicator of detecting capability, and in the rational rage of 0.1 ≤λ ≤1 -φ, EWMA residual chart is more sensitive to mean small shift, and less sensitive to mean large shift than shewhart residual control chart.
出处
《工业工程》
2007年第5期70-73,84,共5页
Industrial Engineering Journal
基金
高等学校博士学科点专项科研基金资助项目(20050145027)
关键词
残差控制图
信噪比
检测能力
平均运行长度
residual charts
signal/noise
detecting capability
average run length
