摘要
线性时不变离散时间系统是最基本的数字系统,差分方程和系统函数是描述系统的常用数学模型,单位脉冲响应和频率响应是描述系统特性的主要特征参数,零状态响应和因果稳定性是系统分析的重要内容.文章从系统的分析流程、系统模型的创建、时域分析、频域分析和因果稳定性分析等方面,介绍了线性时不变离散时间系统的基本分析方法,并以实例形式列举了MATLAB实现程序.
Linear time-invariant discrete-time system is one of the basic digital systems. Difference equation and transmission function are common mathematical models to describe the system. Besides,unit impulse response and frequency response are primary characteristic parameters to the system. To the systems analysis,it is important to compute zero-state response and causality stability analysis. This paper introduces the fundamental analysis methods of the system in several aspects including system analysis flow,system modeling, time-domain analysis, frequency-domain analysis and causality stability analysis. Toillustrate some examples are displayed based on MATLAB.
出处
《湖南理工学院学报（自然科学版）》
CAS
2009年第3期32-36,共5页
Journal of Hunan Institute of Science and Technology(Natural Sciences)
