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test music program of piano

基于四阶累积量的联合对角化，其中给出两种四阶累积量计算方法，方便理解。这个算法还是比较难的，可以参看下独立分量分析中的jade算法(Fourth-order cumulant-based joint diagonalization, which gives two fourth-order cumulant method, easy to understand. This algorithm is quite difficult, you can see under the jade independent component analysis algorithm)

基本的粒子群算法程序，很好的程序 ，用matlab编写的(The basic particle swarm optimization procedure, a good program, written using matlab)

对数字信号的波形及其频谱分析，着重比较其在时域和频域上的差别(Digital signal waveform and its spectrum analysis, focused on comparative differences in the time domain and frequency domain)

Beginning C for Arduino

基因周期后处理的matlab的实现，是中值平滑处理和线性平滑处理的组合的算法(After the gene treatment cycle matlab implementations, including the portfolio value smoothing and linear smoothing)

说明：  交流调速系统仿真模型：SPWM变频调速系统模型-5；方波永磁电动机调速系统-8；交-交变频调速系统模型-3；交流调压调速系统模型-1；交-直-交变频调速模型-4(Simulation model of AC speed regulation system: SPWM Frequency conversion speed regulation system model-5; square wave permanent magnet motor speed regulation system-8; AC-AC frequency conversion speed regulation system model-3; AC voltage regulation speed regulation system model-1; AC-DC-AC frequency conversion speed regulation model-4)

DOA DOA estimation procedures, as well as the use of two classic MUSIC beamformi

说明：  lagrange的M文件，在数学最优问题中，拉格朗日乘数法（以数学家约瑟夫·路易斯·拉格朗日命名）是一种寻找变量受一个或多个条件所限制的多元函数的极值的方法。(M file of Lagrange,In mathematical optimal problems, Lagrange multiplier method (named after mathematician Joseph Louis Lagrange) is a method to find the extremum of multivariate functions whose variables are limited by one or more conditions.)

用MATLAB编写了Internet中TCP/UDP连接，模拟了可靠的TCP连接和快速的UDP连接过程，可直接使用。(Written using MATLAB Internet TCP/UDP connection, analog reliable TCP connection and fast UDP connection process, can be used directly.)