标准化VHDL-AMS语言统计分析数据包

[中文适用范围]： 本文档指定了用于统计行为建模的 VHDL-AMS 包的接口和行为。这些包可用于定义电气、电子和机电组件和子系统参数的统计变化。然后可以将它们与仿真工具一起使用，以分析由这些组件和子系统组成的系统的性能和可靠性。提供包接口及其行为的标准定义旨在促进组件和系统制造商之间的模型交换使用不同的 CAE 仿真工具。SAE 统计软件包支持对受使用 VHDL 或 VHDL-AMS 语言描述的设计公差限制的设计参数进行统计建模。使用此软件包对参数容差进行建模的设计的性能可以通过蒙特卡罗模拟进行分析，该模拟由设计的多次模拟运行组成，每次运行根据其统计分布使用一组不同的参数值。蒙特卡罗模拟将根据参数容差对设计行为进行估计。此外，该软件包还可用于执行设计的极值分析，即计算设计的最坏情况行为的分析。SAE 统计软件包不支持其他统计建模需求，例如统计建模队列中事件到达的变化，或者值在单次模拟期间表现出统计行为的任何其他情况。 [外文原描述]： This document specifies the interface and the behavior of the VHDL-AMS packages for use in modeling statistical behavior. These packages are useful in defining the statistical variation of parameters of electrical, electronic, and mechatronic components and sub-systems. These can then be used with simulation tools to analyze the performance and reliability of systems composed of these components and sub-systems.Providing a standard definition of the package interfaces and their behavior is intended to facilitate the exchange of models between component and system manufacturers and the use of different CAE simulation tools.The SAE statistical package supports the statistical modeling of design parameters subject to tolerances for designs described using the VHDL or VHDL-AMS languages. The performance of a design that uses this package to model parameter tolerances may be analyzed by a Monte Carlo simulation, which consists of multiple simulation runs of the design, each run with a different set of parameter values according to their statistical distributions. The Monte Carlo simulation will yield an estimate of the behavior of the design subject to the parameter tolerances. Additionally, the package may be used to perform an Extreme Value Analysis of a design, that is, an analysis that computes the worst case behavior of the design.The SAE statistical package does not support other statistical modeling needs, for example the modeling of statistical variations of the arrival of events in a queue, or any other situation where a value exhibits a statistical behavior during a single simulation.Cross Reference: IEEE1076.1,J2546