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matlab code and document for least square problem

实验一 双极性矩形随机信号的归一化功率谱密度一 1.1 功率谱密度简介 平稳过程的任何一个非零样本函数的持续时间为无限长，显然都不满足绝对可积和总能量有限的条件。因此，它的傅里叶变换不存在即没有频谱函数。所以我们用功率谱密度来表述其频谱特性。 随机过程的任一实现是一个确定的功率型信号。而对于任意的确定功率信号f(t)，它的功率谱密度为： 式中， 是f(t)的截短函数 对应的频谱函数。f(t)是平稳随机过程 的一个实现。而随机过程某一个实现的功率谱密度不能作为过程的功率谱密度。过程的功率谱密度应该看作是任一实现的功率谱密度的统计平均，即 虽然该式给出了平稳随机过程的功率谱密度，但我们通常都不利用这个式子来计算功率谱。我们知道，确知的非周期功率信号的自相关函数与功率谱密度是一对傅里叶变换。对于平稳随机过程，也有类似的关系，即 和 对于平稳随机过程我们通常先求出其自相关函数再利用上式求出其功率谱密度。 1.2 实验要求  1.了解平稳随机信号功率谱的概念及计算方法  2.仿真不同占空比，等概、非等概双极性矩形随机信号的归一化功率谱密度  3.分析不同信号所包含的频谱分量，有无直流分量和定时分量信息 (A pair of rectangular random experiment polarity signal sample return a nonzero function of any duration power spectral density of a 1.1 power spectral density of a stationary process Introduction of infinite length, apparently not satisfied absolutely integrable and the total energy of the limited conditions. Therefore, it is the Fourier transform of the spectrum that does not function does not exist. Therefore, we use the power spectral density to express their spectral characteristics. Any random process is a realization of a certain type signal power. For arbitrarily determined power signal f (t), its power spectral density is: wherein, is f (t) is a function corresponding to the truncated spectrum function. f (t) is a stationary random process of realization. The random process to achieve a certain power spectral density can not serve as the power spectral density of the process. Power spectral density process should be seen as a statistical average power spectral density of any r)

Diversity Techniques over Fading Channels Maximal Ratio Combining

Cruise for Arduino with Attyni 48

说明：  盒维数MATLAB计算程序。%根据计盒维数原理编写了求一维曲线分形维数的matlab程序 function D=FractalDim(y,cellmax) %求输入一维信号的计盒分形维数 %y是一维信号 %cellmax:方格子的最大边长,可以取2的偶数次幂次(1,2,4,8...),取大于数据长度的偶数 %D是y的计盒维数（一般情况下D>=1）,D=lim(log(N(e))/log(k/e)), (box dimension MATLAB program. % Under the box dimension of the principle of preparing for a peacekeeping curve fractal dimension of Matlab procedures function FractalDim D = (y, cellmax)% for the importation of one-dimensional signal box fractal dimension% y Victoria is a signal llmax : square of the largest side length, the two can take several dual Power (1, 2,4,8 ...), data from more than even the length of the% D y is the box dimension (Dgt under normal circumstances; = 1), D = lim (log (N (e))/log (k/e)) ,)

这是一套完整的求解连铸二冷区喷嘴模拟试验传热系数的程序(This is a complete solution Caster two district cooling nozzle heat transfer coefficient simulation test procedures)

这是两个用matlab实现最小生成树的算法源代码，希望对大家有帮助。(This is a two matlab to achieve the minimum spanning tree algorithm source code, we hope to help.)

机械优化设计Matlab程序 哈尔滨工业大学 孙靖民主编 (Optimization of Mechanical Design Matlab program editor of Harbin Institute of Technology Sun Jingmin)

基于MATLAB的心电信号的分析与处理设计(Ecg signal analysis and processing design based on MATLAB)

用matlab去模拟仿真物理光学的一个文献，挺不错的(Using matlab to simulate a physical optics simulation literature, very good)