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DFT分析模拟信号频谱
- 应用傅里叶变换DFT，分析各种离散信号x(k)的频谱。离散周期信号可以展开成傅里叶级数，所以离散周期信号的频谱 是一个周期的周期性离散频谱，各谱线之间的间隔为 ，而且存在着谐波的关系。 -DFT application of the Fourier transform, analyze discrete signal x (k) of the spectrum. Discrete signal cycle can begin as Fourier series, the discrete sig
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
vcFFT
- 这是本人写的用vc6.0调用matlab6.5的一个程序（使用matlab引擎），实现用FFT分析复谐波信号频谱,并调用matlab来显示最终的频谱。希望对各位有点帮助。也欢迎各位提意见。 matlab位于c:\\matlab6p5 操作系统是：windows2000 -I write this is the call matlab6.5 vc6.0 with a procedure (using Matla b engine) to achieve using FFT an
002
- 基于现代谱估计方法的间谐波检测Spectrum estimates based on modern methods of detection of harmonic
fuliyejishu
- 创建25个谐波的傅立叶级数，计算三角形式的傅立叶级数并将计算结果和转换结果相比较，最后绘制频谱。-The creation of 25 harmonic Fourier series, calculation of the triangular form of Fourier series and the results of calculations and conversions, compared to the final rendering spectrum.
ppanalysis
- 功率谱分析，用于序列的周期识别。将一序列用不同周期的谐波分解,并用F检验进行周期检验。-Power spectrum analysis for identification of sequence cycles. One sequence will be different harmonic decomposition cycle and test cycle with F test.
hps
- Harmonic Product Spectrum (HPS) algorithm for pitch detection.
UseHOSAgetharmonicsourcecode
- 高阶谱或高阶统计量的方法估计谐波信号的参数,获取有色高斯噪声的谐波获取-Higher-order spectrum, or higher-order statistics to estimate the parameters of harmonic signals, access to colored Gaussian noise to obtain the harmonic
testfrft
- 计算谐波信号的离散分数阶傅立叶变换，并求出使信号频谱聚集的最优阶数！-Calculated harmonic signal Discrete Fractional Fourier Transform, and the signal spectrum obtained optimal order together!
nana
- 三电平载波同相层叠PWM方法谐波频谱分析及滤波器设计-Carrier-phase three-level PWM method cascading harmonic spectrum analysis and filter design
spectral-nana
- 三电平同相层叠PWM方法谐波频谱分析及滤波器设计-Cascade three-level PWM method compared with the harmonic spectrum analysis and filter design
signal-spectrum-estimation-
- 特征空间方法是现代谱估计的重要方法之一。针对噪声中的复正弦信号的模型，通过特征矢量的方法进行信号空间的分解。通过将信号空间分解为谐波信号空间和噪声信号空间这两个相互正交的空间的方法进行谱估计。Pisarenko,Music,ESPRIT算法都是这一类方法的重要算法。我们通过对不同算法进行比较分析不同算法在各种状况下的表现性能。并针对ESPRIT算法的各种改性和提升进行对比和测试。-Feature space is one of the modern spectral estimation met
FFT-harmonic-Matlab-
- 从Excel表中读取数据，然后分析其频谱、相谱和总谐波畸变率，并画出图（plot）。-Read data from an Excel table, and then analyze its spectrum, phase spectrum and total harmonic distortion rate, and draw the diagram (plot).
mixed-noise-power-spectrum
- 计算洛伦兹混沌系统的自相关，叠加谐波小信号和高斯报噪声后，计算混合噪声的功率谱-Calculation of autocorrelation of lorenz chaotic system, the superposition of harmonic signal and gaussian noise, the mixed noise power spectrum is calculated
Harmonics_IEC
- 该函数基于的IEC 61000-4-7标准，计算谐波谱值，需要10分钟测量电压和电流信号，对平均值每10期的测量信号进行谐波分析。-IEC 61000-4-7 standard is based on the function to calculate the value of the harmonic spectrum, takes 10 minutes to measure voltage and current signals, the average of every 10 of the
spectrum-analyzer-labview
- 基于图形化编程语言LabVIEW8.6的虚拟频谱分析仪，主要由信号发生器、数字滤波、参数测量、频谱分析和谐波分析构成，可实现对采样信号的显示、分析等功能.-This program designs the virtual spectrum analyzer based on graphical programming language LabVIEW8.6, the spectrum analyzer is mainly by the signal generator, spectrum ana
MATLABFFT-harmonic-analysis
- 基于MATLAB的FFT谐波频谱分析，利用FFT变换算法进行谐波的频率和幅值的变化分析，利用图形分析结果。-MATLAB-based FFT harmonic spectrum analysis using FFT transform algorithm changes the frequency and amplitude of the harmonic analysis, the use of graphical analysis results.
VibID_Android_Backup
- A simple Android App for decoding Harmonic Spectrum Noise captured mic. -A simple Android App for decoding Harmonic Spectrum Noise captured mic.
fft
- 本文提出了一种采用六项余弦偶次幂窗三峰插值的算法来对电网谐波进行检测与分析。该算法通过分析电网信号加窗后傅里叶变换的频域表达式，利用谐波频点附近的三根离散频谱的幅值确定谐波谱线的准确位置，进而得到电网谐波的相关参数频率、幅值及相位的计算公式，最后再对其进行加权修正，从而进一步的提高检测的准确度和有效性。- this paper proposes an approach for power network harmonic detection and analysis based on six e
harmonic-superposition-method
- 基于Davenport谱与谐波叠加法，生成脉动风速。-Based on Davenport spectrum and harmonic superposition method, generate pulsating wind speed.