gm21

生成复杂网络中的无尺度网络，BA模型，分析节点度数，聚集系数等(Build complex networks in the scale-free networks, BA model to analyze the node degree, clustering coefficient, etc.)

关于SMITH圆图的MATLAB相关设计及说明(SMITH chart of MATLAB on the design and description of relevant)

这是GM（1,1）灰色预测的原理，为PDF格式。可进行对一些数据的预测工作。(This is the principle of GM (1,1) gray prediction is in PDF format. Forecasting can be carried out on some of the data.)

对称阵子天线的方向函数与方位角无关，及方向图是以振子轴线为基准的旋转对称图形，这(Symmetry time around antenna azimuth direction has nothing to do with the function, and the pattern is rotational symmetry axis vibrator graphics benchmark, which)

说明：  分别用LMS和RLS算法实现的一个AR4阶谱估计，附源代码和试验结果(LMS and RLS, respectively, with an algorithm AR4-order spectrum estimation, with source code and test results)

OFDM过程的代码，简单实用，包括梳状导频和块状导频( the code of OFDM process, simple and practical，Including comb pilot and block pilot)

已调试过，可产生需要的LDPC码，具体应用可以自己更改参数(the program has been runed succefully, can be used to produce LDPC code)

根据干扰信号波形样式的不同，压制性干扰可分为噪声调幅干扰、噪声调频干扰、噪声调相干扰。就是用噪声或类似噪声的干扰信号遮盖或淹没有用信号，阻止雷达检测目标信息。它的基本原理是：任何一部雷达都有外部噪声和内部噪声，雷达对目标的检测是在这些噪声中进行的，其检测又是基于一定的概率准则的。一般来说，如果目标信号能量S与噪声能量N相比（信噪比S/N），超过检测门限D，则可以保证一定的虚警概率Pfa的条件下达到可检测目标回波所要求的检测概率Pd，简称为可发现目标，否则便称为不可发现目标。(Blanket Jamming can be divided into different styles according to the interference signal waveform, noise AM interference, noise FM jamming noise phase modulation interference. With noise or noise-like interference signal covered or submerged useful signal prevent radar detection target information from. Its basic principle is: any one radar has the external noise and the internal noise of the radar target detection in these noise detection is based on a certain probability criterion. Generally, compared to if the target signal energy S and noise energy N (signal-to-noise ratio S/N), more than the detection threshold D, you can guarantee reach target echo can be detected under the conditions of a certain false alarm probability Pfa requirements detection probability Pd, referred to can be found in the target, otherwise known as not finding the target.)

Conversion from ECEF to LLA algorithm developed in matlab

matlab初学者实例程序集,对学习matlab十分有用，在此与大家分享。(matlab beginners example of the assembly, to learn matlab useful to share with you here.)