用Java Applet实现离散时间系统频率响应的动态演示  

Dynamic Displaying Frequency Response of Discrete-time System by Java Applet

作　　者：吴娟娟[1] 陈淑珍[1] 

机构地区：[1]武汉大学电子信息学院,湖北武汉430079

出　　处：《计算机应用研究》2005年第1期149-151,154,共4页Application Research of Computers

基　　金：国家教育部"新世纪网络课程建设工程"基金资助项目 (1 441 0 0 1 2 3 )

摘　　要：采用Java语言实现了离散时间系统频率响应特性的动态演示,以JavaApplet的形式嵌入网页中运行。利用鼠标响应事件形象地刻画了零极点的位置对频率响应特性的影响,并提出了界面设计层次图的思想。其动态性、交互性、界面设计等方面都具有独到之处,丰富了教学形式,对信号与系统课程的网上教学做了有益的尝试。By means of embedding Java Applet in Web page, dynamic displaying frequency response of discrete-time system is realized. Responding mouse events are used in order to vividly depict the influence of the positions of zeros and poles on frequency response characteristic and the idea of layer map in interface design is put forward. The program has shown originality in the dynamic property, interactive property and interface design, etc. This is also a beneficial trail in how to teach Signal & System on the Web.

关 键 词：APPLET 频率响应 零点 极点 

分 类 号：TP319.3[自动化与计算机技术—计算机软件与理论]