GUIwithMatlab

模拟一群鸟捕食的情景，从而达到优化目标函数的目的，这就是粒子群算法！起初在可行的空间中随机的产生一群粒子，然后让每个粒子开始在虚拟的空间中向四面八方飞翔，并且每个粒子都记下他们飞过的适应值（也就是目标优化函数）最高的点，而且整个粒子群有一个最高适应值个体，这样，粒子在飞翔的时候尽量朝向自己曾飞过的最好的点和集体的最好的点。最后达到收敛到近似最优点的目的。 (Simulation of a group of birds preying on the scene, so as to achieve the purpose of optimizing the objective function, that is, PSO! At first, where feasible, have a space in a group of random particles, and then let the beginning of each particle in a virtual space to fly in all directions, and each particle they have in mind over the fitness value (that is objective optimization function) the highest point , and the whole particle swarm adaptation has a maximum value of the individual, so that particles in the fly when he had flown as far as possible towards the best point and collective best point. Finally reaching the merits of convergence to approximate most purposes.)

说明：  上传一个实现AM调制解调的源代码(From AM modulation and demodulation of a realization of the source code)

牛顿迭代法求无约束一维极值问题的速度相当快，而且还有一个好处就是能高度逼近最优值。(Newton iteration method for one-dimensional unconstrained extremum problem very fast, but there is a benefit that can be highly close to the optimal value.)

a matlab file which is useful

fft and dft is done withought functions..

自己按照TPAMI文章编写的approximate pairwise accuracy criterion (aPAC)。已测试无误，并提供该代码所对应的文章。(This matlab code is writtern by myself,namely approximate pairwise accuracy criterion (aPAC)。The paper corrsponding to code is also provided.)

m序列移位寄存器 完成31位m序列。扩频通信中重要(M series shift register)

mean and covariance of samples estimation

该文件时通信原理中的最基本的数字调制方式BPSK（二进制相移键控），希望对大家学习有帮助(When the file is the basic communication principle of digital modulation BPSK (binary phase shift keying), we hope to learn helpful)

基于MMC逆变器的MATLAB的模型，初学者学习用。电力电子行业与电气工程行业学习资料。(MMC converter)