离散傅里叶变换在实际中的应用  

Application of discrete Fourier transform in practice

作　　者：王彦杰 WANG Yan-jie(School of Statistics and Mathematics,Yunnan University of Finance and Economics,Kunming,Yunnan 650000,China)

机构地区：[1]云南财经大学统计与数学学院

出　　处：《宁德师范学院学报（自然科学版）》2019年第4期337-343,共7页Journal of Ningde Normal University(Natural Science)

基　　金：国家自然科学基金资助项目（11761075）

摘　　要：以离散傅里叶变换定义及性质为基础,简单总结其在几个典型领域的应用:数字滤波器、指纹图像、图像水印、频域采样.说明离散傅里叶变换在信号处理系统中的广泛应用及美好前景,激发人们对它的兴趣和研究.Based on discrete Fourier transform based on simple summarizes the definition and nature of its application in the field of several typical:digital filter,the fingerprint image,image watermarking,frequency sampling,illustrates the discrete Fourier transform in the signal processing system of wide application and prospects to stimulate interest in it and study.

关 键 词：离散傅里叶变换 反变换 数字滤波器 指纹图像分割 图像水印 频域采样 

分 类 号：O174.22[理学—数学]