优化

nonlinear control feedback linearizatioan

roots -Polynomial roots Syntax r = roots(c) Description r = roots(c) returns a column vector whose elements are the roots of the polynomial c. Row vector c contains the coefficients of a polynomial, ordered in descending powers. If c has n+1 components, the polynomial it represents is . Tips Note the relationship of this function to p = poly(r), which returns a row vector whose elements are the coefficients of the polynomial. For vectors,roots and poly are inverse functions of each other, up to ordering, scaling, and roundoff error.

In a normal communication channel, it is often desirable to concentrate the information in as narrow a region of the frequency spectrum as possible in order to conserve available bandwidth and to reduce power. The basic spread spectrum technique, on the other hand, is designed to encode a stream of information by spreading the encoded data across as much of the frequency spectrum as possible. This allows the signal reception, even if there is interference on some frequencies. While there are many variations on spread spectrum communication, we concentrated on Direct Sequence Spread Spectrum encoding (DSSS). The DSSS method spreads the signal by multiplying it by a chip, a maximal length pseudorandom sequence modulated at a known rate. Since the host signals are in discrete-time format, we can use the sampling rate as the chip rate for coding.

matlab实现流行识别，用于多相流的测量(matlab to achieve popular recognition for the measurement of multiphase flow)

PSK调制的源代码，可以在一个通信系统中或者需要使用调制的时候使用(PSK modulation source code, can be a communication system or need to be used when using modulation)

这是一些matlab函数：欧拉公式一、格斯比函数等等 它是一些已知的m文件 可以方便的导入(this is matlab function euler1 and gossibi it s a .m file and can be join in easily)

基本使用说明如下： 1、文件夹中均为MATLAB软件M文件程序； 2、程序文件为每一章节中例题的MATLAB程序电子版，程序名与例题名序号相对应； 3、此文件夹中的程序已经经过调试，在MATLAB 7.0或以上版本中均可以正常运行； 4、程序头中功能介绍了此程序的主要实现的功能。 (Basic use is as follows: 1, folder files are MATLAB software M procedures 2, the program file for each of the sections in the example of the electronic version of MATLAB program, the program name and serial number of the corresponding sample questions 3, in this folder procedures have been debug, in MATLAB 7.0 or above in both the normal operation 4, the procedure first introduced in the function of this program the main function.)

matlab的进阶教程，让你更好的掌握如何写好matlab代码(Advanced matlab tutorial, so you better learn how to write matlab code)

adjacency matrix. This is an NV by NV matrix A in which A(I,J) is the number of edges between nodes I and J. Ordinarily, this value is either 0 or 1, although there are natural extensions to this idea.(returns the adjacency matrix of a graph.)

LMS测相算法仿真（直线阵），通过算法产生阵列流型矩阵并进行相关分析,加噪(LMS algorithm simulation test phase (linear array), generated by an algorithm array manifold matrix and correlation analysis, noise)