Signals-and-SystemsAnalysis-and-threalization-of-M

对正弦信号傅立叶变换和时频分析。（注意：需要首先安装时频工具箱(Fourier transform of the sinusoidal signal and time-frequency analysis. (Note: need to first install the time-frequency toolbox)

智能优化算法matlab程序实现，包含各种算法的程序代码(Intelligent optimization algorithm matlab program )

《Extremum seeking control and applications》 第5章实例代码(Extremum seeking control and applications code of the fifth chapter)

线性调频脉冲压缩的Matlab程序,音频信号通过LM386放大，关于神经网络控制。( LFM pulse compression of the Matlab program, LM386 audio signal amplification, On neural network control.)

最大熵分割，成功调试过，可以完全实现最大熵分割，效果完美(Maximum Entropy Segmentation, successfully debugged Maximum Entropy Segmentation can be fully realized, the effect is perfect)

频率域低通滤波进行图像去噪，巴特沃斯低通滤波器(Frequency domain low-pass filter for image denoising, Butterworth low-pass filter)

用现代谱估计法中的AR模型对信号进行功率谱估计(The power spectrum of the signal is estimated by the AR model of the modern spectral estimation method)

说明：  VMD是通过迭代搜寻变分模型（具体怎么搜寻，请亲们自己看，我主要讲他的大概）最优解， 来确定我们所知的模态uk(t)及其对应的中心频率ωk和带宽。 每个模态都是具有中心频率的有限带宽（就是在频域中有在一定的宽度）。所有模态之和为源信号。(VMD is to determine the modal UK (t) and its corresponding central frequency, k and bandwidth by iteratively searching for the optimal solution of the variational model (see dear friends for details, and I will mainly talk about his approximate solution). Each mode is a finite bandwidth with a central frequency (that is, a certain width in the frequency domain).The sum of all modes is the source signal.)

说明：  fft代码,采用蝶形算法,包括C,matlab和verilog代码(fft code, using butterfly algorithm, including C, matlab and Verilog code)

turbo码中常用的交织器，S-随机交织(The turbo code interleaver, S-random interleaver )