Using Telecommunication Instructional Modelling System (TIMS) in Communications Systems Course
Using Telecommunication Instructional Modelling System (TIMS) in Communications Systems Course
复制标题
在通信系统课程中使用电信教学建模系统 (TIMS)
DOI：
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发表时间：
2017
期刊：
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通讯作者：
D. Dow
中科院分区：
文献类型：
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作者：
Jiahui Song;D. Dow
通信系统中的传统课程使用讲座和阅读来解释理论，并分配基于理论和数学的纸质问题集，并辅以有限的Matlab和Multisim实验室。基于软件的仿真研究是一种有用的学习工具，然而，计算机仿真不能模拟实际系统行为的所有方面。电信教学模拟系统（TIMS）是一种先进的电信培训系统。TIMS是一个机架和模块系统，其中模块执行基本的通信或信号处理功能。例如，有加法器、乘法器、滤波器、采样器和信号发生器。TIMS为学生提供了一种在实验室中对通信和信号处理系统进行原型设计的方法，有助于理解。与仅用软件模拟相比，TIMS将为学生提供更"真实的真实的世界"体验。为了给学生更多的实践经验与模拟和数字通信的理论和概念，使用TIMS的实验练习开发。本课程最近提供的课程在介绍每个主题后为学生提供了TIMS实验室：幅度调制/解调，频率调制/解调，采样，ASK生成/解调，BPSK生成/解调，FSK生成/解调。TIMS单元是硬件培训系统，学生可以在框图级别上构建电路，并使用示波器观察结果。评估是基于学生调查（课程评估）和学生的工作（分配的家庭作业，考试和实验室）。最近的课程由同一位教师以传统方式授课，结果只有60.8%的学生获得"B-"或更高的成绩。在TIMS系统的第一次迭代中，获得"B-"或更好成绩的学生人数增加到77.8%。此外，96.3%的学生“同意”或“非常同意”TIMS帮助他们更好地学习课程内容。92.6%的学生“同意”或“非常同意”TIMS增加了他们对该主题的兴趣。
Conventional courses in communications systems use lecture and readings to explain the theory, and assign paper based problem sets of theory and math, supplemented with limited Matlab and Multisim based labs. Software based simulation studies are a useful learning tool, however, computer simulations cannot model all aspects of the behavior of actual systems. Telecommunication Instructional Modelling System (TIMS) is an advanced system for telecommunications training. TIMS is a rack and module system, in which modules perform a basic communication or signal processing function. For example, there are adders, multipliers, filters, samplers, and signal generators. TIMS provides students with a way of prototyping communication and signal processing systems in the laboratory that helps understanding. TIMS would provide a more "real world" experience for the students compared with only software simulations. In an attempt to give students more hands-on experience with the theories and concepts of analog and digital communications, lab exercises using the TIMS were developed. A recent offering of this course gave the students a TIMS lab after each topic was introduced: amplitude modulation/demodulation, frequency modulation/demodulation, sampling, ASK generation/demodulation, BPSK generation/demodulation, FSK generation/demodulation. TIMS units are hardware training systems, with which the students build the circuits at a block diagram level, and observe the results using oscilloscope. Evaluations were based on student surveys (course evaluations) and student work (assigned homework, exams and labs). Recent offerings of this course taught in the traditional way by the same instructor resulted in only 60.8% of the students receiving a “B-” or higher grade for the course. In the first iteration of TIMS system, the number of students who received a “B-” or better increased to 77.8%. Moreover, 96.3% of students “agree” or “strongly agree” that TIMS helped them to better learn the course content. 92.6% of students “agree” or “strongly agree” that TIMS increased their interest in the subject.