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基于MATLAB开发环境的语音增强源文件~~(Enhance the source file based on MATLAB development environment for voice ~ ~)

对信号进行小波变化，找出QRS波形，并利用不同方式进行消噪，从而用图形比较效果(It find the QRS wave of an input signal using wavelet transform and depress noise using several ways,so compare their figure.)

说明：  用MATLAB做得fft谱分析，非常的好用。需要做这方面试验的，可以看看。(Fft done using MATLAB spectral analysis, very easy to use. Test needs to be done in this area, you can look at.)

光电综合实验，平行平面腔的数值迭代解法，即Fox_Li数值迭代法。对于之前网上某位仁兄给出的代码给出了优化，主要是使用了一个子函数，使得代码清晰容易阅读。而且拥有GUI界面也更像做程序这件事情。---南邮某学子(Fox_Li numerical iteration. A short and smart program in Matlab, as well optimized in the aspect both of code and execution.)

matlab的FFT仿真文件，可以设置五种不同频率，幅值，初始想问的输入波形，并且通过FFT变换可以看到各个波形的频谱和相位。(The FFT simulation matlab file, you can set up five different frequency, amplitude, initial input waveform to ask, and you can see the spectrum and phase of each waveform by the FFT.)

详细介绍了PSO算法的实现过程！keshiixangezhongliziqunsuanfa!(PSO algorithm was introduced in detail the implementation of the process!)

基于LQR控制算法的Simulink仿真模型，用于观测汽车侧倾稳定性。(The Simulink simulation model based on LQR control algorithm is used to observe vehicle roll stability.)

面阵的幅度相位全控制自适应数字波束形成算法——对角加载 QRD-SMI 算法的研究；两种面阵唯相位(Phase-Only)数字波束形成算法——小相 位扰动约束算法和期望方向增益最大约束算法的研究；面阵的数字多波束形成算法——二维 FFT 多波束的研究，以及 FFT 在可编程逻辑器件中的实现。 (Research of the adaptive digital beamforming algorithm, which control both amplitude and phase of each array element: diagonal loading QRD-SMI algorithm. ② Research of two Phase-Only DBF algorithms: small phase perturbation restriction algorithm and maximum gain of the expected direction restriction algorithm. ③ Research of multiple beams algorithm for planar array: 2D-FFT multiple beams. And the realization of FFT with CPLD. )

小波包分析提取振动信号中的特征频率，快速扩展随机生成树算法，用蒙特卡洛模拟的方法计算美式期权的价格以及基本描述。( Wavelet packet analysis to extract vibration signal characteristic frequency, Rapid expansion of random spanning tree algorithm, Monte Carlo simulation method of calculating the American option price and basic description.)

说明：  辨识信号的幅值、相位、频率；参数估计；低频振荡(Identification of the amplitude, phase, frequency of the signal; parameter estimation; low frequency oscillation)