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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
FFTOcean
- 基于FFT的海面模拟。能够实现海面的复制,波浪模拟效果较好。-FFT-based simulation of the sea. Be able to achieve replication of the sea, wave simulation better.
myWave_Fft
- 自制软件,实现频谱分析。能显示信号与频谱图。主要是对正弦信号和三角波进行一维FFT变换,得到频谱图。-Self-made software, the realization of spectral analysis. Showing the signal and frequency spectrum. Mainly sinusoidal signal and triangular wave transform one-dimensional FFT, the frequency spectrum
oscilloscope_src
- 这是一个简单的应用我建立理解波的Windows音频API的基础知识,并获得一个快速傅立叶变换(FFT变换)的基本掌握。它的功能是:双缓冲绘图,取样的音频源,选择一个录音源使用搅拌机,FFT频谱计算阵列,并策划采样数据。 -This is a simple application I built to understand the basics of the Windows Audio WAVE API, and to get a basic grasp on Fast Fourier Tra
yanshejisuan-MATLAB
- 功能: 菲涅耳衍射的S-FFT计算 执行:调入一图像,计算平面波照射下给定波长及距离的衍射场振幅图像 -Given wavelength and the distance of the diffraction field amplitude image function: Fresnel diffraction of the S-FFT calculation of Execution: transferred to an image, computing the plane wave
fft
- 用DFT 函数计算电压u, 电流i的基波(f1=50 Hz)的有效值和相位; 用FFT函数分别计算电压u和电流i 所包含的直流,基波和谐波的有效值和初相角; 可计算基波(f1=50 Hz)和各次谐波的功率p和功率因数con?.(The effective value and phase of fundamental wave (f1 = 50 Hz) of voltage U and current I are calculated by DFT function. The effect
dfftpack
- FFTPACK is a package of Fortran subprograms for the fast Fourier transform of periodic and other symmetric sequences. It includes complex, real, sine, cosine, and quarter-wave transforms.