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付里叶变换的频移特性;付里叶变换的时域卷积特性-Fourier transform of the frequency shift characteristics the Fourier transform of time domain convolution properties
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快速傅氏变换,是离散傅氏变换的快速算法,它是根据离散傅氏变换的奇、偶、虚、实等特性,对离散傅立叶变换的算法进行改进获得的-Fast Fourier transform, discrete Fourier Transform Algorithm, which is the discrete Fourier transform of the odd and even, true, real and other properties, on the discrete Fourier transform
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快速傅氏变换,是离散傅氏变换的快速算法,它是根据离散傅氏变换的奇、偶、虚、实等特性,对离散傅立叶变换的算法进行改进获得的-Fast Fourier transform, discrete Fourier Transform Algorithm, which is the discrete Fourier transform of the odd and even, true, real and other properties, on the discrete Fourier transform
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This demonstration is intended for people who know something about the theory of the discrete Fourier transform, and who would find it helpful to see some its properties demonstrated graphically, using a programming language.
The demonstration s
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2.1 傅里叶变换
2.1.1 经典傅里叶变换
2.1.2 傅里叶变换的基本性质
2.1.3 快速傅里叶变换
2.1.4 短时傅里叶变换
2.2 小波分析与多分辨率分析的历史
2.3 小波分析与傅里叶变换的对比
2.4 小波变换
2.4.1 连续小波变换
2.4.2 离散小波变换
2.4.3 高维小波连续变换
2.5 常用小波基函数
2.5.1 小波函数
2.5.2 小波函数系
2.5.3 复数小波
2.6 构造紧支撑正常小波基
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The generalized continuous wavelet transform associated
with the fractional Fourier transform-The main objective of this paper is to study the fractional Fourier transform (FrFT ) and the
generalized continuous wavelet transform and some of their
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1、连续时间信号在MATLAB中的表示
2、连续时间信号在MATLAB中的应用
3、连续时间信号的卷积计算
4、连续时间LTI系统的时域分析
5、周期信号的傅里叶级数及频谱分析
6、傅里叶变换及其性质
7、连续时间LTI系统的频率特性分析及频域分析
8、信号抽样及抽样定理
9、拉普拉第五章 连续时间LTI系统的时域分析
斯变换
-A continuous-time signal representation in MATLAB 2, continuous
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小波降噪、时频分析等方法,系统地研究航天电子设备多余物噪声检测过程中各操作变量和微粒物理参数对声波频谱的影响。通过单因素试验,详细分析了微粒粒径、振动力学条件中加速度和频率等3因素对声音信号频谱分布的影响规律,比较了短时傅里叶变换和小波变换的特点。该结果为进一步识别多余物微粒的参数提供了指导依据(the complexity of the material interaction and the properties of the particles themselves make the re
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The reason for doing the filtering in the frequency domain is generally because it is computationally faster to perform two 2D Fourier transforms and a filter multiply than to perform a convolution in the image (spatial) domain. This is particularly
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FT是一种FT的高效算法,称为快速傅立叶变换(fast Fourier transform),它根据离散傅氏变换的奇、偶、虚、实等特性,对离散傅立叶变换的算法进行改进获得的。(FT is an efficient algorithm for DEFT, called fast U Lie transform (fast Fourier transform). It is obtained by improving the algorithm of discrete U Lie transform
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本课题基于MATLAB平台的数字信号处理仿真演示系统。数字信号即离散信号,本设计带有一个丰富得GUI人机交互界面,一共包括4个部分,分别为:离散时间信号的卷积,基本函数的Z变换(单位阶跃信号,脉冲信号,斜变信号,正余弦信号,指数系列信号),Z变换的基本性质(线性,位移,z域尺度变换,时域卷积),傅里叶变换的基本性质。是一个不错的选题,GUI设计逻辑清晰,章节清晰,层次明了。(This project is based on MATLAB platform of digital signal pr
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