摘要
单位阶跃信号描述了某些实际对象从一个状态到另一个状态可以瞬间完成的过程,在线性时不变系统分析中起到了非常重要的作用。通过阶跃信号的一些基本知识,主要讨论了怎样用阶跃信号表示分段函数,并分析了单位阶跃信号在频谱分析中的优点。
Unit-step signal plays a very important part in the course of “ Signal and Linear Systems Analysis”, as it describes the process during which some objects can be instantly changed from one state to another. This paper first introduces the basic principle of the unite-step signal and then focuses on how to use step signal to figure subsection function and the strongpoint of the step in frequency spectrum analysis. At last, we correct a few mistakes in using step signal to express zero input response and entire response, which are discovered in the reference book [2]. We also give a review of our analysis of the mistakes.
出处
《桂林电子工业学院学报》
2005年第5期61-65,共5页
Journal of Guilin Institute of Electronic Technology
关键词
单位阶跃信号
频谱分析
零输入响应
全响应
unit-step signal, frequency spectrum analysis, zero input response, entire response
