Untitled8

从经典功率谱估计周期图法原理入手，从理论上分析了其存在的局限性，借助Welch算法对其进行修正。依靠Matlab强大的数值分析和信号处理能力，进行实验仿真，比较不同的窗函数，不同的数据长度对Welch法谱估计质量的影响，并分析了造成这些影响的原因。(The paper mainly introduces the principles of Periodogram method of classical PSD estimation,analyzes the deficiency of Periodogram method in theory,and makes use of Welch to amend Perodogram method. By the use of simulation in Matlab, the impacts of different window function and different lenghth of data on estimation quality of Welch are discussed and the reasons of the impacts are analyzed.)

对多天线系统进行编码，既有空间分集，又有时间分集(stbc code containing time diversity and space diveisity)

无线传感器网的leach协议的实现。基于matlab。。(Wireless sensor networks leach protocol implementation. Based on matlab. .)

math function code of learning methods

这是一个2fsk的跳频系统程序，很有帮助的，(This is a 2fsk hopping system procedures, helpful,)

说明：  最新版libsvm安装包和SVM回归预测模型，包含预测数据集(SVM regression prediction model)

说明：  matlab 的详细讲解例程,图文并茂，适合初学者使用。(A brief introduction about matlab.)

说明：  训练图片的方向梯度直方图特征，并保存为.m文件。实现单分类或多分类。(MATLAB HOG train. The orientation gradient histogram feature of the training image is saved as a .m file. Realize single classification or multiple classification.)

this is a matlab code for human eye detection

这是我们实验所使用的LEACH算法代码。在m=1时，相同的代码可以用于FIAR(This is the LEACH code we have used. The same code can be used for FAIR if m=1 )