利用调频连续波雷达测距讲解频谱分析  

Explanation of Spectral Analysis with FMCW Radar

作　　者：许可 李双勋[1] 程永强 曾旸 万建伟[1] XU Ke;LI Shuangxun;CHENG Yongqiang;ZENG Yang;WAN Jianwei(College of Electronic Science and Engineering,National University of Defense Technology,Changsha 410073,China)

机构地区：[1]国防科技大学电子科学学院,长沙410073

出　　处：《电气电子教学学报》2024年第2期150-152,共3页Journal of Electrical and Electronic Education

基　　金：湖南省普通高等学校教改项目(HNJG-2021-0270,HNJG-2021-0283);国防科技大学本科教改重点课题(U2020102)。

摘　　要：分析模拟信号的频谱是离散傅里叶变换(DFT)的一个重要应用,也是本科“数字信号处理”课程的重要知识点。以调频连续波雷达测距为例,结合具体参数讲解“数字信号处理”课程中频率估计、频率分辨率和栅栏效应等知识点,探索如何结合工程案例提升专业课程的教学效果,不仅促进了学生对相关知识的理解,还让学生深刻体会到理论结合实际的重要性。Spectral analysis is an important application of the Discrete Fourier Transform(DFT),also it is an important knowledge point for the Digital Signal Processing course.A teaching case is proposed with the FMCW radar.The spectral analysis,frequency resolution as well as the picket fence effect is explained with the specific radar parameters.It enhances the students to understand the DFT,also explores how to improve the teaching effects of the professional course.

关 键 词：调频连续波雷达 离散傅里叶变换 频谱分析 

分 类 号：TN911.7[电子电信—通信与信息系统]