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创建微分方程是分析线性时不变连续时间系统的基础,时域分析和频域分析是系统分析的重要内容,拉普拉斯变换是分析系统的有效工具。文章介绍了系统模型的创建方法,并用拉普拉斯变换对连续时间系统进行了时域和频域分析,实例列举了MATLAB实现的程序。
The establishment of differential equations is the basis for the analysis of linear time-invariant continuous-time systems. Time-domain analysis and frequency-domain analysis are the important contents of system analysis. Laplace transform is an effective tool for analysis system. The paper introduced the method of creating system model, and analyzed the time-domain and frequency-domain of continuous-time system by Laplace transform.