基于LabVIEW的“信号与系统”实验软平台构建

An Experimental Software Platform for "Signals and Systems" Course Based on LabVIEW

针对"信号与系统"课程教学中存在概念抽象、理解难等问题,构建基于LabVIEW软件设计实验教学软平台。首先,分析LabVIEW的特点,以及基于LabVIEW构建实验教学软平台的技术难点和可行性;其次,分析和归纳课程中的知识点和难点,研究贯穿课程教学的典型实验;再次,规划和设计软件框架,编程实现实验的目标;最后,介绍频谱泄露、时域卷积运算、典型信号频谱分析等具体知识点的LabVIEW实现。

An experimental software platform based on LabVIEW is put forward in view of abstruseness in the teaching process of ＂Signals and Systems＂.Firstly,the features of LabVIEW are analyzed,the technical difficulties and the feasibility of contributing experimental software platform based on LabVIEW are investigated.Then,the key points in the teaching progress are summarized,typical experiment in the study process is also interpreted.Thirdly,the design of software structure and the programming for the fulfillment of experimental goals are introduced.In the end,methods for solving some specific problems such as analysis of spectrum leakage,convolution in time domain and typical signal spectrum investigation are introduced.