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频谱分析程序
- 频谱分析技术是研究周期性现象中最为常用的一种统计分析方法,其主要是通过对一复合的波系进行数据变换,将其分解成若干振幅和相位不同的简谐波,并找出其中振幅最大的波,即该复合波中的主要频率。频谱分析的方法较多,其中最常用的是快速傅立叶变换法(FFT)-spectrum analysis techniques to study the cyclical phenomenon most commonly used a statistical analysis method, its principal i
FoURIER
- 傅立叶描述子是分析和识别物体形状的重要方法之一.利用基于曲线多边形近似的连续傅立叶变换方法 计算傅立叶描述子,并通过形状的主方向消除边界起始点相位影响的方法,定义了新的具有旋转、平移和尺度不变 性的归一化傅立叶描述子.与使用离散傅立叶变换和模归一化的传统傅立叶描述子相比,新的归一化傅立叶描述 子同时保留了模与相位特性,因此能够更好地识别物体的形状.实验表明这种新的归一化傅立叶描述子比传统的 傅立叶描述子能够更加高效、准确地识别物体的形状.
DFT.rar
- 该程序包括了一个应用最为广的离散傅里叶变换,褶积,抽样最小相位。绝对能运行,The program includes an application of the most widely used discrete Fourier transform, convolution, sampling minimum phase. They can certainly run
FreqzPhase
- 对信号进傅里叶变换,得到振幅谱和相位谱,并可画出振幅谱和相位谱。-The signal into the Fourier transform, the amplitude spectrum and phase spectrum and amplitude spectrum and phase draw spectrum.
frequency
- 图像中的频率变换,包括快速傅里叶变换,幅度图像和相位图像,频率成分等-The image frequency transformation, including the fast Fourier transform, amplitude images and phase images, the frequency components, etc.
fengsen
- 连续相位调制信号(CPM)产生,有PMUSIC 校正前和校正后的比较,分数阶傅里叶变换计算方面。- Continuous phase modulation signal (CPM) to produce, A relatively before correction and after correction PMUSIC, Fractional Fourier transform computing.
qunyui
- 时间序列数据分析中的梅林变换工具,抑制载波型差分相位调制,基于分段非线性权重值的Pso算法。- Time series data analysis Mellin transform tool, Suppressed carrier type differential phase modulation, Based on piecewise nonlinear weight value Pso algorithm.
miuqan
- IDW距离反比加权方法,基于小波变换的数字水印算法matlab代码,抑制载波型差分相位调制。- IDW inverse distance weighting method, Based on wavelet transform digital watermarking algorithm matlab code, Suppressed carrier type differential phase modulation.
niusun_v42
- 验证可用,分数阶傅里叶变换计算方面,抑制载波型差分相位调制。- Verification is available, Fractional Fourier transform computing, Suppressed carrier type differential phase modulation.
kuijen
- 非归零型差分相位调制信号建模与仿真分析 ,采用加权网络中节点强度和权重都是幂率分布的模型,分数阶傅里叶变换计算方面。- NRZ type differential phase modulation signal modeling and simulation analysis, Using weighted model nodes in the network strength and weight are power law distribution, Fractional Fourier t
qaoking
- ofdm系统仿真 含16qam调制 fft 加窗 加cp等模块,Gabor小波变换与PCA的人脸识别代码,连续相位调制信号(CPM)产生。- ofdm system simulation including 16qam modulation fft windowing modules plus cp, Gabor wavelet transform and PCA face recognition code, Continuous phase modulation signal (CPM) to
FFT_EXP
- 用于离散数据的傅立叶变换,并进行频谱的分析,得到频率-幅值图或者频率相位图,是频谱分析时的参考(Fu Liye transform for discrete data, and frequency spectrum analysis, to obtain frequency amplitude diagram or frequency phase diagram, is a reference for spectrum analysis)