shuju_1hao_12mi

alpha稳定分布的函数。该分布是一种连续概率分布，其概率密度比高斯分布概率密度有更厚的拖尾，是一类适用范围很宽的随机信号模型，比高斯分布有更广泛的适用性。(Alpha stable distribution function. This distribution is a continuous probability distribution, the probability density are thicker than gaussian probability density trailing, random signal model is a kind of very wide application scope, has wider applicability than gaussian distribution. )

这个小程序可以简单的选取回归分析中box-cox变换的lambda值，通过matlab强大的矩阵运算功能可以通过简单比较RSS值的方式来得到lambda，使用时只需要输入实验值矩阵X和Y即可，然后输入minRSS（X，Y）就能简单明了的看到最优变换参数 （这个程序虽然小但是学习回归分析的初学者学习时都会经过这个算法，上载时因为不到1KB所以我又放了个文本格式的）(This little program can select a simple regression analysis of box-cox transformation of lambda values, through the powerful matlab function matrix calculation can be relatively simple way of RSS to get the value of lambda, the use of only need to enter the experimental data matrix X and Y can be , and then enter the minRSS (X, Y) will be able to see the simple optimal transformation parameters)

说明：  参考文件MAT-FILE打包下载visualC加加MATLAB(MAT-FILE)

4g technologies LTE WIMAX

三种不同的算法估计，估计均方差与信噪比的关系。(Three different algorithms is estimated that the estimated mean square error and SNR. )

差分法比较曲线的形状相似度，接着筛选出有用曲线求相位差，给了原始数据，可以直接运行(Difference Method for curve shape similarity, then filter out the demand curve useful in phase, to the raw data, can run)

滤波器和信号频谱分析的MATLAB的SIMULINK仿真，不错的程序(filter and spetrum analyse)

1）利用CC++语言实现给定的LFSR； 2）通过不同初始状态生成相应的序列，并观察它们的周期有什么特点； 3）利用生成的序列对文本进行加/解密（按对应位作模2加运算）。 给定的LFSR为：(1) the use of C C++ language given LFSR 2) to generate the corresponding sequences by different initial state, and observe what are the characteristics of their cycle 3) using the generated sequence of text encryption/decryption (press the corresponding bit for modulo-2 addition operation). LFSR given as follows:)

用基本的粒子滤波算法，即SIR运行UNGM模型。通过UNGM模型显示SIR对于非线性系统的性能。(With the basic particle filter algorithm, that is, to run UNGM model of SIR. By UNGM model shows SIR for the non-linear system performance.)

常用跳频，扩频信号的调制与解调，主要用于通信及数字信号处理领域(Commonly used frequency hopping, spread spectrum modulation and demodulation of the signal, mainly used in the field of communications and digital signal processing)