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.
作者
王彦杰
WANG Yan-jie(School of Statistics and Mathematics,Yunnan University of Finance and Economics,Kunming,Yunnan 650000,China)
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）
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
discrete Fouriet transform
inverse transform
digital filter
fingerprint image segmentation
image watermarking
frequency domain sampling
