APF_LCL

逆合成孔径雷达成像最基本的转台成像程序，适合刚接触这一领域的新手学习。(Inverse synthetic aperture radar imaging basic turntable imaging procedures, suitable for beginners new to the field study.)

here is a program draw tiế p tuyế n above MATLAB

learn network securty is fun for arsitecture network

说明：  This is the first part of Noonegative Matrix Factorization

自抗扰控制器自写，调节参数可用。含TD跟踪微分器，NLSEF非线性反馈律，ESO扩张状态观测器(Self rejection controller is self written, and the adjustment parameters are available)

Kruskal算法的M程序，主要用于图论问题。最终求出要求的最小树问题。(Kruskal algorithm M program, mainly for graph theory problems. Eventually find the required minimum tree problem.)

无线传感网络关于节点的能量有效性的路由协议方面的代码(Energy efficient routing protocol of wireless sensor network node aspects about the code)

LEACH protocol code developed using Matlab with some modification

IIR数字滤波器的特点是h(n)为无限长序列。设计的基本思想是：模拟系统与离散系统存在着互相模仿的理论基础，所以可以让数字滤波器的特性去模仿一个模拟滤波器的特性，得到数字滤波器的H(z)，H( )之间的变换关系。设计时，先设计一个模拟滤波器的传递函数 ，然后通过s变量与z变量之间的变换关系求出数字滤波器的系统函数H(z)。(IIR digital filter is characterized by h (n) for infinitely long sequence. The basic idea of the design are: analog systems and discrete systems there is the theoretical basis of mutual imitation, so you can make the characteristics of a digital filter to imitate the characteristics of an analog filters, digital filters are H (z), H () of the the relationship between the transformation. Design, first to design a simulation of the filter transfer function, s variables and z and then transform the relationship between variables derived digital filter system function H (z).)

说明：  一种基于PN训练序列的OFDM时频同步的新算法。通过构造倒序结构的同步训练序列(PN training sequence based on the OFDM time and frequency synchronization of the new algorithm. Structure by constructing a reverse synchronization of training sequences)