CenterPoint.m

aloha算法的基本模型，基于matlab语言，主要提供了一种思想(Anti-collision algorithm for the basic model)

本程序为产生多途信号，并对多个信号进行叠加，并混入一定信噪比的噪声。然后对得到的信号进行频谱分析和相关分析。(The procedure for producing multi-path signal, and the superposition of multiple signals, and mixed with a certain signal to noise ratio of the noise. Then the resulting signal spectrum analysis and correlation analysis.)

ALOHA协议的思想很简单，只要用户有数据要发送，就尽管让他们发送。当然，这样会产生冲突从而造成帧的破坏。但是，由于广播信道具有反馈性，因此发送方可以在发送数据的过程中进行冲突检测，将接收到的数据与缓冲区的数据进行比较，就可以知道数据帧是否遭到破坏。(ALOHA protocol s thought is very simple, as long as the user data to be sent, although let they send. There are, of course, such conflicts which cause the destruction of the frame. But, because the radio channel has feedback, so the sender can be tested to the conflict in the process of sending data, the received data comparison with data of the buffer, you can know whether data frame was damaged.)

9种不同的方法求解一维函数的极值，包括黄金分割法、插值法等。(Nine different ways to solve the extreme value of the one-dimensional functions, including the golden section method, interpolation.)

说明：  可以用于训练数据得到HMM的三大参数A,B,Pi矩阵(Can be used to train data to get the three parameters A, B, Pi matrix of HMM)

说明：  通过大主应力和小主应力求解摩擦角和粘聚力(The friction angle and cohesion are solved by large principal stress and small principal stress)

这个是matlab下时频分析中之非平稳信号的一般处理的全部代码(under Matlab is the time-frequency analysis of non-stationary signals in general will deal with all the code)

说明：  APA基本算法，变步长的，仿射投影算法大作业，文档有说明(APA basic algorithm, variable step size, affine projection algorithm large assignments, documentation)

课题写得一个波束形成程序，希望能对大家有所帮助(a beamforming algorithm)

说明：  Radon变换的matlab工具包，大家可以看看(radon&matlab)