摘要
该文主要讨论了数学模型与其实世界的关系；系统数学模型的基本模式：行为模式和状态变量模式以及在状态变量模式下的同构与同态系统；简要介绍了常用的模型简比方法，并提出了可以用于频域模型简化的“频带复盖法”和“灵敏度分析法”。
In this paper,the relation between real system and its mathematical model is discussed . The two basic modes of mathemati- cal model-behavior mode and state variable mode, along with the isomorphic and homomorphic relation between models and real system are described. Some methods for simplifying mathematical models are presented,and two effective means -'Frequency - bandwidth Overlap- ping 'and'Sensitivity Analysisx'.which are very useful in simplifying frequency range models,are expoundad.
出处
《计算机仿真》
CSCD
1998年第3期68-71,共4页
Computer Simulation
关键词
数学模型
模型简化
数学仿真
Mathematical model Model reduction System simulation
