着眼非单频破解通信信息类理论课教学难题  

Solving the theory course teaching problems of communication and information domain by focusing on the character of non-single frequency

作　　者：董占奇[1] 李明霞[1] 

机构地区：[1]南阳理工学院计算机与信息工程学院,南阳473004

出　　处：《信息技术》2012年第5期25-27,32,共4页Information Technology

基　　金：河南省高等学校青年骨干教师资助计划项目(2010GGJS-214);河南省教育厅自然科学研究计划项目(2008C510006)

摘　　要：基于通信信息类专业特点,有针对性地对理论课教学难点的讲解问题进行阐述研究。从信号的分解及其可能的物理意义出发,紧贴专业实际,深入阐述说明了信号的非单频特征,继而在此基础上对多普勒扩展、傅里叶变换分析、邻信道干扰等几个具有典型代表意义的知识点的讲解问题进行了分析,对于有效地解决信号与系统、信号处理、通信原理、信号检测、电子测量、电磁理论、移动通信、泛函分析等课程和密码学、光学等学科中的许多难点的讲解问题有一定的参考意义。Based on the character of the communication and information professional fields, this paper gives out an elaboration and study on the associative theory course teaching problems. Keeping abreast of professional practice, and starting with the signal decomposition and the probable physical meaning, it introduces the non-single frequency character of the common signals, and then, based on these presentation, it gives some explanation and analysis on the teaching of the typical knowledge points, such as Doppler shift spread, Fourier analysis, adjacent channel interference. The research not only has certain reference significance for resolving the teaching problems of some key knowledge in the courses of signals ＆ systems, signal processing, principle of communication, signal detection, electronic measurement, the theory of electromagnetic field, mobile communication and functional analysis, but also is helpful for the teaching in the discipline of cryptography and physical optics.

关 键 词：非单频 傅里叶分析 教学难题 多普勒频移扩展 邻信道干扰 

分 类 号：TN911[电子电信—通信与信息系统]