MatlabPrograms

傅里叶变换可谓是应用于工程科学等各个领域，本文本内容少可以很好的匹配傅里叶变换各种问题(Fourier transform can be described as applied to engineering science and other fields, the contents of this article can be a good match fewer problems Fourier Transform)

粒子群算法，也称粒子群优化算法（Particle Swarm Optimization），缩写为 PSO， 是近年来发展起来的一种新的进化算法(（Evolu2tionary Algorithm - EA）。PSO 算法属于进化算法的一种，和遗传算法相似，它也是从随机解出发，通过迭代寻找最优解，它也是通过适应度来评价解的品质，但它比遗传算法规则更为简单，它没有遗传算法的“交叉”(Crossover) 和“变异”(Mutation) 操作，它通过追随当前搜索到的最优值来寻找全局最优。这种算法以其实现容易、精度高、收敛快等优点引起了学术界的重视，并且在解决实际问题中展示了其优越性。(Particle swarm optimization, also known as particle swarm optimization (Particle Swarm Optimization), abbreviated as PSO, is a new evolutionary algorithm developed in recent years ((Evolu2tionary Algorithm- EA) .PSO algorithm is an evolutionary algorithm, and similar genetic algorithm, it is also starting random solutions, through iterative search for the optimal solution, which is also uated by the quality of the fitness solution, but it is much simpler than genetic algorithms rule, it does not have the genetic algorithm cross (Crossover) and variant (Mutation) operation, which by following the current search to find the optimal value to the global optimum. the algorithm for its easy implementation, high accuracy, and fast convergence advantages attracted academic attention, and in solving practical problems demonstrated its superiority.)

傅里叶变换与频谱分析的matlab代码，用于时间序列分析。(matlab code for FFT and PSD)

基于matlab环境下的 绘制彩色玫瑰花的小程序 效果还是不错的 建议大家下载测试(Matlab environment based on the rose colored drawing or a good small program effects suggest that you download the test)

说明：  一段波束形成的小程序，用matlab实现(Beamforming for some small procedures, using matlab to achieve)

this is scw algorithm to find out the region of interest in given car image to find out license plate

 它是以简明方法写就的一本易于掌握的数学手册；  编写逻辑性强，内容由浅入深，对于初学者能很快掌握MATLAB的用法；  易于查找命令和问题，给读者灵感与启迪，以解决实际问题；  对每一条命令，都进行了详细论述；  对于每一条命令，几乎都有易懂的实例；  内容按数学分类进行描述。 ( It is a simple way to write on the one easy to learn math handbook  write logic is strong, the contents of Deep and MATLAB for beginners to quickly master the use of  easy to find commands and questions, giving the reader inspiration and inspiration to solve practical problems  on each order, are discussed in detail  For each command, almost all examples of easy to understand  content described by mathematical classification.)

定义一个结构体变量（包括年、月、日），计算该日在本年中为第几天？（注意考虑闰年问题），要求写一个函数days，实现上面的计算。由主函数将年月日传递给days函数，计算后将日子传递回主函数输出(Define a structure variable (including the year, month, day), calculated on that day in the middle of this year for the first few days? (Note that the leap to consider the issue), asked to write a function of days, to achieve the above calculations. By the main function will be passed to the days date function to calculate the days will pass back to the main function of the output)

雷达系统中用于计算起伏目标的检测概率，适用于Swerling II型目标。(The radar system used to calculate the undulation target detection probability, applies Swerling II target.)

Contrast Stretching with Matlab. Example matlab code and result images.