Description: 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 signal spectrum is a cyclical cycle of discrete spectrum, the line between the interval, but there is a harmonic relationship. Platform: |
Size: 38912 |
Author:殷开 |
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Description: MYW - ARMA 算法的MATLAB代码, 是频谱分析(通常是在高级DSP这门课中会用到的)的常用算法-MYW- ARMA algorithm MATLAB code, Analysis of the spectrum (usually at the senior DSP This class will be used) to the commonly used algorithm Platform: |
Size: 1024 |
Author:Frankie |
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Description: 用AR模型法进行功率谱估计的各种算法比较，包括自相关法，BURG法，ARMA模型估计，PISARENCO谐波分解法-AR model method used to carry out a variety of power spectrum estimation algorithms, including the auto-correlation method, BURG Act, ARMA model is estimated, PISARENCO harmonic decomposition method Platform: |
Size: 3072 |
Author:许全盛 |
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Description: 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-Modern spectral estimation methods based on the inter-harmonic detection of Spectrum estimates based on modern methods of detection of harmonic Platform: |
Size: 172032 |
Author:walkinghill |
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Description: 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. Platform: |
Size: 25600 |
Author:胡燕 |
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Description: 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. Platform: |
Size: 1024 |
Author:于浩 |
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Description: 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 Platform: |
Size: 14336 |
Author:z |
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Description: 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! Platform: |
Size: 1024 |
Author:bonny |
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Description: 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 method. Complex sinusoidal signal for the noise model, by the method of the feature vector for the decomposition of the signal space. By decomposition of the signal space to the space harmonic signal and the noise signal space, the method of the two mutually orthogonal spatial spectrum estimation. Pisarenko, MUSIC, ESPRIT algorithm is an important algorithm of this type of method. Different algorithms, our comparative analysis of the performance of different algorithms performance under a variety of conditions. And for a variety of modification and upgrading of the ESPRIT algorithm to compare and test. Platform: |
Size: 5120 |
Author:韩晶晶 |
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Description: 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). Platform: |
Size: 22528 |
Author:旭奕 |
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Description: 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
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Size: 1024 |
Author:权爱娟 |
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Description: 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 measurement signal harmonic analysis. Platform: |
Size: 9216 |
Author:杨超 |
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Description: 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 analysis and digital filtering, parameter measurement, harmonic analysis, which can realize the sampling signal display, analysis, and other functions. Reliable operation, good performance. Platform: |
Size: 984064 |
Author:钱敏 |
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Description: 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. Platform: |
Size: 13312 |
Author:lihongyu |
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Description: 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 even order cosine window and triple-spectrum-line interpolation. Through analyzing the adding window signal fourier transform in the frequency domain expression, using amplitude of three discrete spectrum near the harmonic frequency point to determine the accurate position of the harmonic spectrum and get the calculation formula of related parameters of the power network harmonic such as frequency, amplitude and phase, the algorithm further enhances the accuracy and effectiveness by using weighted correction. Platform: |
Size: 1024 |
Author:陈佳兴 |
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Search - harmonic spectrum