基于李沙玉图形无源网络模型频率特性的软件实现方法

Software Realizing Way Based on Frequen Specific Property of Passive Network Modle of LI Sha-yu Graphy

介绍了用MATLAB软件进行频率特性实验的李沙玉图形实现方法。作为工程求取数学模型的方法,实验法求取系统或环节的频率特性是分析、设计的基础,被广泛地应用到各种控制系统的数学模型建立上,这种方法将被测系统或环节作为未知的,通过对其施加正弦信号,考察其稳态输出,可获得其频率特性,是一种实用的建模方法。与传统的实物实验相比,该方法具有可重复性、读数精度高、灵活方便等特点,为实现虚拟实验或缺少实物实验条件的教学单位提供了解决方法。

＂Li Sha - yu＂graphic real method by MATLAB software to practice on frequency experiment is introduces. As the method of getting maths model on engineering, the getting system on practice or the frequency specific property are based on analysis and design. It is widely used in all kinds of control system in maths model. The tested system by this method is regarded as unknowno the frequency specific property by putting sinesignal to inspect the reliable output con be go tteno It is a real method of building model. Comparing with the traditional object experiments, this method is noted for the repetition, high precision of reading, flexibility and conveniento It offers the solving methods for realizing virtual experiment and the teaching units of lack of experiment condition.