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连续与离散信号系统的Matlab仿真示例代码．(Continuous and Discrete Signal System Simulation Matlab sample code.)

log4j的配置文件！可以很好的配置log4j的程序，是一个标准模板(log4j configuration file! Log4j configuration can be a very good program, is a standard template)

基于matlab产生-+1占空比50的方波，并去除零点(To produce a square wave)

说明：  根据滚降系数画出滚降系统频谱，并画出相应的时域波形(According to the roll-off factor to draw the spectral roll-off and draw the corresponding time-domain waveform)

求解一条直线和一个余弦的第一个交点，返回值为交点的横坐标(A straight line and a cosine to solve the first point of intersection, the return value is the intersection of the abscissa)

利用matlab编写程序，通过时域有限差分方法进行电磁场的数值模拟(Use matlab, numerical simulation of electromagnetic fields by the finite difference time domain method)

Real world problems often present multiple, frequently conflicting, objectives. The research for optimal solutions of multi-objective problems can be achieved through means of genetic algorithms, which are inspired by the natural process of evolution: an initial population of solutions is randomly generated, then pairs of solutions are selected and combined in order to create new solutions slightly different the initial solutions. The fittest solutions are kept in the population and are used to generate new solutions

自己用的时域特征提取方式，包含均值，均方根值，歪度，峭度，峰值指标，阈值裕值指标，峭度指标等，然后用RBF做聚类(The method of feature extraction in time domain includes mean value, root mean square value, skewness, kurtosis, peak value index, threshold margin index, kurtosis index, etc. Then RBF is used for clustering.)

HOUGH变换用MATLAB实现的代码。。。。(HOUGH transform implemented using MATLAB code)

matlab程序30个小例子，非常适合初学者了解和尽快上手！(matlab program for 30 small example, very suitable for beginners to understand and get started!)