摘要
“微弱信号检测技术”是测控技术与仪器和电子信息科学与技术专业的学生必修课。为了让学生更深入地理解相关器的原理和梳状滤波特性、直观地感受积分时间常数对噪声和信号的影响以及锁定放大器级联使用情况,我们在课堂教学中引入了MATLAB数值仿真模拟方法。通过在软件中自己编写程序来分析和处理信号,绘制相关器输出的噪声信号,促进了学生对相关器原理的理解,提高了学生的编程能力和对课程的兴趣,最终提升了课堂的教学效果。
Weak Signal Detection Technology is a required course for students majoring in measurement and control technology and instruments and electronic information science and technology.In order to make students to better understand the principle of correlator and the characteristics of comb filtering,intuitively feel the effect of integration time constant on noise and signals,and the use of lock-in amplifier cascades,Matlab numerical simulation method is introduced in classroom teaching.Writing Matlab code to analyze and process the signal,and drawing the noise signal output by correlator can promote students'understanding of the principle of the correlator,improve students'programming ability and interest in the course,and ultimately improve the effectiveness of classroom teaching.
作者
张程
肖仲喆
ZHANG Cheng;XIAO Zhong-zhe(School of Optoelectronic Science and Engineering,Soochow University,Suzhou,Jiangsu 215006,China)
出处
《教育教学论坛》
2020年第26期192-193,共2页
Education And Teaching Forum
基金
国家自然科学基金青年科学基金项目(61905170,61906128)
江苏省自然科学基金青年科学基金项目(BK20190816)。
作者简介
张程,男,博士,讲师,研究方向为电子测控和高性能微纳光电器件;肖仲喆,女,博士,讲师,研究方向为电子测控和情感语音识别。
