用SPICE仿真软件分析功能简化田口方法外表以优化参数设计

Predigesting Taguchi Method Exterior list by Monte Carlo Analysis Function of SPICE Software

田口方法是ＶＲＰ（减少散布计划）的一种重要手段，但田口方法的外表设计工作量过大。已有建议通过正负侧最坏水平予以简化，但无通用的得到正负侧最坏水平的方法。另外，当产品有多种质量特性时，对应于某一质量特性的正负侧最坏水平一般来说并不是其他质量特性的正负侧最坏水平。该文介绍用ＳＰＩＣＥ仿真软件的ＭＯＮＴＥ－ＣＡＲＬＯ分析功能进行误差分析得出相应的均值μ和标准差σ，代替田口方法外表得到ＳＮ比η和灵敏度Ｓ。从而大大简化田口外表优化功能参数的工作量。并用两个滤波器设计的例子予以说明。

Taguchi method is an important means for VRP. But the workload for Taguchi method's exterior list is greater. There is advice for predigesting by pos neg worst level. But there is no universal means for obtain pos neg worst level yet. In addition, when there are multi quality characteristics of product, a pos neg worst level corresponding a quality characteristic is not fit for other quality characteristics commonly. Content is introduced in this paper that error analysis is carried out and mean ( and mean square deviation ( are elicited .And SN ratio ( and sensitivity S are elicited by Monte Carlo analysis function of SPICE simulation software instead of Taguchi method exterior list . Thereby the workload for Taguchi method exterior list for optimizing function parameters is Predigested greatly. Two examples of filter design have enumerated for explain.