MATLAB

matlab设计低通，带通，高通滤波器分别滤出信号。(matlab design low pass, band pass, high pass filter to filter out the signal, respectively.)

gradient conjugue à pas fix , à pas optimal

低通滤波器，每句程序都有注释，易懂，还有一个实例，便于加深认识(Low-pass filter, each sentence programs have notes, easy to understand, there is an instance, to facilitate a better understanding of)

利用阈值函数进行心音去噪的程序，利用了改进的双参数可调阈值函数(A threshold function is used to denoise the heart sound, and the improved dual parameter adjustable threshold function is used.)

今日对光谱数据预处理中的MSC（多元散射校正）和SG（0阶、高阶）平滑进行了学习，参考书目是李志刚老师著的《光谱数据处理与定量分析技术》（原理介绍较为详细）并结合CSDN和联合开发网上下载的代码进行了简单的matlab编程。代码稍后上传，介绍详细，感兴趣的可以去看看。(Today, MSC (Multiple Scattering Correction) and SG (0th order, high order) smoothing in spectral data preprocessing are studied. The bibliography is "Spectrum Data Processing and Quantitative Analysis Technology" by Li Zhigang (more on the principle) . And combined with CSDN and joint development of the code downloaded online to carry out a simple matlab programming. The code is uploaded , and the details are detailed. If you are interested, you can check it out.)

说明：  Matlab验证码识别算法实现，详细见代码实现，要搭建Matlab环境(Matlab verification code identification algorithm, see the code implementation in detail, to build Matlab environment)

数学建模中回归法拟合（包括初步回归，逐步回归和二元二项回归）的matlab程序(Mathematical Modeling in the return fitting (including the initial regression, stepwise regression and binary regression 2) the matlab program)

模态参数辨识方法，主要是利用时域数据进行时域模态参数辨识(time modal identification method)

matlab 主成分分析，内含数据和程序源码。很好的数学建模资料(Principal component analysis )

本程序是快速独立成分分析算法中需要调用的一个很重的子程序。(This procedure is fast independent component analysis algorithms need to call a heavy subroutine.)