Description: FFT的实现在LPC2378上。首先采用了拉个朗日插值算法对采集的电网波形频率跟踪，然后使用128点的FFT。-FFT on achieving the LPC2378. First used in the Rafah Colon day interpolation algorithm for the acquisition tracking grid frequency waveform, and then use the 128 point FFT. Platform: |
Size: 25600 |
Author:张红卫 |
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Description: 基于Matlab编写的用于对数据进行插值分析和傅立叶变换的程序-Based on Matlab for the preparation of the data analysis and Fourier transform interpolation procedures Platform: |
Size: 2048 |
Author:yang |
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Description: Performs N-D FFT interpolation any data for which fftn works. Will upsample by zero-filling, downsample by truncating high frequencies, or combine both up- and downsampling by dimension to allow arbitrary reshaping.-Performs N-D FFT interpolation on any data for which fftn works. Will upsample by zero-filling, downsample by truncating high frequencies, or combine both up- and downsampling by dimension to allow arbitrary reshaping. Platform: |
Size: 2048 |
Author:ragada |
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Description: C#实现图像基本操作的动态链接库，包括图像的读取，存储以及插值和FFT-Image process dll,including reading,writing，interpolation ,FFT and so on. Platform: |
Size: 67584 |
Author:BAO_JIANGHONG |
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Description: An Elementary Introduction to the Discrete Fourier Transform
1.1 ComplexNumbers
1.3 Analyzing the Series
1.5 Filtering a Signal
1.6 How Often Does One Sample?
1.7 Notes and References
1.2 Trigonometric Interpolation
1.4 Fourier Frequency Versus Time Frequency
2 Some Mathematical and Computational Preliminaries
2.1 Computing the Twiddle Factors
2.2.1 Real floating-point operation (FLOP) count
2.2.2 Special considerations in computing the FFT
2.3 Expressing Complex Multiply-Adds in Terms of Real Multiply-Adds
2.4 Solving Recurrences to Determine an Unknown Function
2.2 Multiplying Two Complex Numbers
II Sequential FFT Algorithms
3 The Divide-and-Conquer Paradigm and Two Basic FFT Algorithms
3.1 Radix-2 Decimation-In-Time (DIT) FFT
3.1.1 Analyzing the arithmetic cost
3.2 Radix-2 Decimation-In-Frequency (DIF) FFT
3.2.1 Analyzing the arithmetic cost
3.3 Notes and References Platform: |
Size: 14788608 |
Author:Rakesh |
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Description: 提供了两种一维内插法，基于多项式的内插法和基于FFT的内插法。命令interpft可进行基于FFT的内插法。样本插值的源程序。-Offers two one-dimensional interpolation method, based on polynomial interpolation and FFT-based interpolation. FFT-based command interpft to the interpolation method. Sample interpolation of the source. Platform: |
Size: 1024 |
Author:青苹果 |
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Description: 改程序能够实现加窗插值FFT算法的matlab仿真，已经得到实验验证，注解清晰详细，代码可读性强.以512点为例进行仿真计算，对与其他点数，如256或是1024可以通过简单修改即可-Reform process to achieve the windowed interpolation FFT algorithm matlab simulation, experimental verification has been, clear and detailed annotations, code readability. 512 points as an example to the simulation of other points, such as 256 or 1024 can be simple modifications Platform: |
Size: 1024 |
Author:吴敌 |
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Description: 插值FFT估计正弦波频率算法及其matlab实现-Interpolation FFT algorithm and its estimated frequency sine wave matlab achieve Platform: |
Size: 11264 |
Author:张倩 |
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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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Description: This the fft source code.
This file is described by interpolation and deterpolation.-This is the fft source code.
This file is described by interpolation and deterpolation. Platform: |
Size: 94208 |
Author:Ki |
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Description: 基于kaiser窗的双谱线插值FFT谐波分析，三相光伏逆变并网的仿真，包含特征值与特征向量的提取、训练样本以及最后的识别，解耦，恢复原信号，是学习PCA特征提取的很好的学习资料。- Dual-line interpolation FFT harmonic analysis kaiser windows, Three-phase photovoltaic inverter and network simulation, Contains the eigenvalue and eigenvector extraction, the training sample, and the final recognition, Decoupling, restore the original signal, Is a good learning materials to learn PCA feature extraction. Platform: |
Size: 5120 |
Author:jcvixkxf |
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Description: 数值分析的EULER法，使用混沌与分形分析的例程，保证准确无误，是学习通信的好帮手，是信号处理的基础，基于kaiser窗的双谱线插值FFT谐波分析。- EULER numerical analysis method, Use Chaos and fractal analysis routines, Ensure accurate communication is learning a good helper, Is the basis of the signal processing, Dual-line interpolation FFT harmonic analysis kaiser windows. Platform: |
Size: 9216 |
Author:bdaxwzqx |
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Description: 这是一个好用的频偏估计算法的matlab仿真程序,基于kaiser窗的双谱线插值FFT谐波分析，计算目标和海洋回波的功率谱密度。( This is a useful frequency estimation algorithm matlab simulation program, Dual-line interpolation FFT harmonic analysis kaiser windows, Calculating a target and ocean echo power spectral density.) Platform: |
Size: 11264 |
Author:teisqma |
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Search - interpolation FFT