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DFTanalysesignal
- DFT分析信号频谱,使用matlab可方便的进行信号频谱分析-DFT analysis of the signal spectrum can be convenient to use matlab signal spectral analysis
fftplot
- FFT，即为快速傅氏变换，是离散傅氏变换的快速算法，它是根据离散傅氏变换的奇、偶、虚、实等特性，对离散傅立叶变换的算法进行改进获得的。它对傅氏变换的理论并没有新的发现，但是对于在计算机系统或者说数字系统中应用离散傅立叶变换，可以说是进了一大步。 设x(n)为N项的复数序列，由DFT变换，任一X（m）的计算都需要N次复数乘法和N-1次复数加法，而一次复数乘法等于四次实数乘法和两次实数加法， -FFT, fast Fourier transform which is a discrete fast
matlab
- matlab 用DFT实现长序列卷积并用FFT进行信号谱分析-matlab convolution with the DFT and used to achieve a long sequence of FFT for signal spectral analysis
matlab_image_processing
- mathlab for image processing 2D, DFT, FFT etc.
HW4
- In mathematics, the discrete Fourier transform (DFT) is one of the specific forms of Fourier analysis. As such, it transforms one function into another, which is called the frequency domain representation, or simply the DFT, of the original function
Homework-2
- differential calculation DFT transform in matlab
AM-signal
- 本文主要研究内容是3种AM信号数字化解调的算法，即正交解调算法，包络解调算法，平滑离散傅立叶变化（DFT）解调算法，给出相应的解调原理、公式推导以及系统模块。采用MATLAB对一段信号采用3种方法分别进行仿真解调，并对结果进行比较，给出3种方法的优缺点及应用场合。-This article main research content is three AM signal demodulation algorithm, digital orthogonal demodulation algori