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通过三个具体实例介绍乐MATLAB语言在化学中的应用，说明在数值计算方面其有着比目前流行的高级语言FORTRAN,PASCAL,C无法比拟的强大功能(through three specific examples music MATLAB in chemistry applications, Note the numerical calculation of their share than the currently popular high-level language FORTRAN, and PASCAL. C can not compare with the powerful functions)

sliding mode control files for advanced control system

本代码主要仿真了维特比解码（5,4,2）的SPC码的仿真使用以及其性能(This code simulated Viterbi decoding (5,4,2) SPC code simulation use, as well as its performance)

信号与系统基础知识包括连续信号与模型、离散信号与模型；常用信号变换包括Z变换、Chirp Z变换、FFT变换、DCT变换和Hilbert变换等；离散系统结构包括IIR、FIR和Lattice结构；IIR滤波器设计包括模拟和数字低通、高通、带通与带阻滤波器设计，以及基于冲激响应不变法和双线性Z变换法的IlR滤波器设计等；FIR滤波器设计包括基于窗函数、频率抽样法和切比雪大逼近法的FIR滤波器设计；平稳信号分析包括经典功率谱估计、基于参数模型的功率谱估计和基于非参数模型的功率谱估计；非平稳信号分析包括STFT变换、Gabor展开、Wigner-Ville分布与Choi-Williams分布；非高斯信号分析包括基于非参数法的双谱估计、基于参数模型的双谱估计，以及双谱估计的应用；信号处理的GUI实现包括滤波器设计与分析的FDATool工具和滤波器设计与信号分析的SPTool工具。(signals and systems based on knowledge, including continuous signal with the model, discrete signal and model; Common signals include transform Z transform, chirp Z-transform, FFT transform. DCT and Hilbert transform; Discrete system architecture including IIR, FIR and Lattice structure; IIR filter design, including analog and digital low-pass, high-pass, band-pass and band stop filter design, Based on the impulse response of the same law and bilinear Z transform the IlR filter design; FIR filter design including on the basis of the window function, frequency sampling and snow all over the big approximation of FIR filter design; stationary signal analysis include classical power spectrum estimation, Based on the model parameters of the power spectrum estimation and non- parametric model b)

FFT 仿真程序结合modesim使用，matlab原码(FFT simulation program with modesim use, matlab original code)

matlab code for Short-Time Fourier Transformation (STFT) with Matlab Implementation

说明：  多重交叉验证代码，测试可用，代码完善简洁。(Multiple cross validation code, test available, code perfect and concise.)

关于卷积码的viterbi译码算法，可以自己设定输入的码元(On the viterbi decoding convolutional codes, can be set for the input symbol)

输入：样本序列 输出：一个最佳Gamma拟合所需要参数(return fitted best Gamma)

该文件详细介绍了蚁群算法，不仅有代码，还有数据，并且还附带蚁群算法的介绍PPT，很有用的，是学习的好算法。(Ant colony algorithm was introduced in detail the file, not only the code, and data, and also with ant colony algorithm is introduced PPT, very useful, is good to learn algorithm.)