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格式 [sqnr,a_quan,code]=u_pcm(a,n) 输入样值序列a 、量化电平数目n, 程序计算量化间隔、进行均匀量化、进行编码、计算量化信噪比， 返回量化信噪比squn、编码前的量化序列a_quan、编码后的码序列code。 (Format [sqnr, a_quan, code] = u_pcm (a, n) input sample value sequence a, the number of quantization levels n, the calculation procedures to quantify interval, the uniform quantization, coding, computing quantization noise ratio, return quantization noise ratio squn, to quantify the pre-coding sequence a_quan, coding sequences after the code.)

采用matlab平台实现常见的神经网络算法，实现聚类和分类功能(Neural network)

该文件运用matlab仿真工具仿真通信中的关键技术之一，锁相环。采用不同的调制方式。(The document the use of simulation tools for communication matlab simulation of one of the key technologies, phase-locked loop. Different modulation.)

西蒙赫金的《自适应滤波原理》一书的matlab程序，现在继续上传第12章的程序， 大家学习交流，觉得有用的自己下载，(西蒙赫payment principle of adaptive filtering, one book matlab procedure, we shall now continue From Chapter 12 procedures, the exchange of everyone to learn, find useful to download their own,)

The Betta-Newmark program for analysising one-Degree Freedom systems

DM6437 using simulink

The AeroSim blockset provides a complete set of tools for developing nonlinear 6-degree-of-freedom aircraft dynamic models. The Simulink blocks include the nonlinear equations of motion, linear aerodynamics based on component build-up, piston-engine propulsion, aircraft inertia model including weight variation due to fuel consumption, atmosphere models including standard atmosphere, wind gusts and von Karman turbulence, Earth models which provide Earth radius, gravity and magnetic field components at current aircraft location.

最小二乘法电力系统状态估计，利用IEEE-14和IEEE-30节点系统检验，结果正确(WLS method of power system state estimation)

关于VMD的一篇博士论文，其中比较了EMD和LMD以及VMD的分解效果，证明VMD分解有较好的效果。(A doctoral thesis on VMD, which compares the decomposition effects of EMD, LMD and VMD, proves that VMD decomposition has a good effect.)

matlab最优化程序包括 无约束一维极值问题 进退法 黄金分割法 斐波那契法 牛顿法基本牛顿法 全局牛顿法 割线法 抛物线法 三次插值法 可接受搜索法 Goidstein法 Wolfe.Powell法 单纯形搜索法 Powell法 最速下降法 共轭梯度法 牛顿法 修正牛顿法 拟牛顿法 信赖域法 显式最速下降法， Rosen梯度投影法 罚函数法 外点罚函数法 內点罚函数法 混合罚函数法 乘子法 G－N法 修正G－N法 L－M法 线性规划 单纯形法 修正单纯形法 大M法 变量有界单纯形法 整数规划 割平面法 分支定界法 0-1规划 二次规划 拉格朗曰法 起作用集算法 路径跟踪法 粒子群优化算法 基本粒子群算法 带压缩因子的粒子群算法 权重改进的粒子群算法 线性递减权重法 自适应权重法 随机权重法 变学习因子的粒子群算法 同步变化的学习因子 异步变化的学习因子 二阶粒子群算法 二阶振荡粒子群算法 (matlab optimization process includes Non-binding one-dimensional extremum problems Advance and retreat method Golden Section Fibonacci method of basic Newton s method Newton s method Newton s Law of the global secant method parabola method acceptable to the three interpolation search method   Goidstein France Wolfe.Powell France Simplex search method Powell steepest descent method Conjugate gradient method Newton s method Newton s method to amend Quasi-Newton Method trust region method explicitly steepest descent method, Rosen gradient projection method Penalty function method outside the penalty function method within the penalty function method Mixed penalty function multiplier method   G-N was amended in G-N method L-M method Of linear programming simplex method, revised simplex method Big M method variables bounded simplex method, Cutting Plane Method integer programming branch and bound method 0-1 programming quadratic programming )