wireless-communication

Implementation of the general difference equation. Solution of a differential equation. Generation of discrete time exponential sequence.

书名：[MATLAB语言常用算法程序集].(龚纯).清晰版 内容：插值，函数逼近，特征值计算，数值微分，数值积分，方程求根，非线性方程组求解，线性方程组的直接法，线性方程组的的迭代法，随机数生成，特殊函数计算，常微分方程的初值问题，偏微分方程的数值解法，数据统计和分析。(Title: [MATLAB algorithms commonly used in assembly language]. (Gong pure). Clearer view of the contents: interpolation, function approximation, eigenvalue calculation, numerical differentiation, numerical integration, finding roots of equations, nonlinear equations, linear equations group, direct, linear equations of the iterative method, random number generation, calculation of special functions, initial value problems for ordinary differential equations, numerical solution of partial differential equations, statistics and analysis.)

有关最小二乘法及其改进算法的matlab程序总结，希望对大家有些帮助。(something about RS，if you have some doubt,please email me.)

matlab实现插值与拟合，可以运行的程序(matlab program to complete chazhi and nihe)

simple problem(sonar) low pass filter

signal procesing toolbox

说明：  】利用混沌动力学系统中logistic 映射先对水印图像进行置乱预处理以增强其鲁棒性, 在小波域中将原始音频信号按比例分段, 此比例为原始音频信号低频部分与水印信号个数之比, 然后将水印信号加入到音频信号的 低频部分。用StirMark 攻击后的实验结果表明, 该算法对StirMark 的部分攻击具有一定的鲁棒性。(The logistic- map sequences to encrypt the watermark are used. The original audio signal in DWT (Discrete Wavelet Transform) domain is seperated into some pieces determined by the ratio between the length of the low frequency parts and the length of the encrypted watermark. Every bit of the watermark is added into the relevant pieces of the low frequency parts in the DWT domain. Experimental results show that the algorithm is robust against some StirMark attacks.)

在rach中要用到cazac序列，该源文件可以产生cazac序列的自相关性和互相关性特征图(generate cazac s autocorrelation)

关于bragg光纤的电磁波横模的计算，用其可以给加好的了解bragg的模式特性(on the transverse mode of the electromagnetic wave, can be used to increase their understanding of good characteristics of the model bragg)

主分量分析的MATLAB程序，对于初学者比较有用，可以好好看一下(MATLAB program, the principal component analysis is useful for beginners, you can take a look at)