matlab

Communition MATLAB (Proakis)书中的源程序，很不错(Communition MATLAB (Proakis) source book, very good)

Introduction to matrix converter

除了蚁群算法，可用于PID参数优化的智能算法还有很多，比如遗传算法、模拟退火算法、粒子群算法、人工鱼群算法，等等。(In addition to the ant colony algorithm, can be used in the intelligent algorithm of PID parameter optimization and there are many, such as genetic algorithm, simulated annealing algorithm, particle swarm optimization (pso), artificial fish algorithm, and so on.)

使用MATLAB对MIMO系统进行辨识，其中有各种算法仿真算例，N4SID，针对多变量系统的一种识别算法(MOESP (Multivariable Output-Error State sPace) is a deterministic method to identify linear time invariant systems. The MOESP method developed by M. Verhaegen and P. Dewilde is based on the LQ decomposition of Hankel matrix formed from input-output data, where L is lower triangular and Q is orthogonal. A Singular Value Decomposition (SVD) can be performed on a block from the L (L22) matrix to obtain the system order and the extended observability matrix. From this matrix it is possible to estimate the matrices C and A of state-space model. The final step is to solve overdetermined linear equations using the least-squares method to calculate matrices B and D.)

说明：  “水仙花数”是指一个三位数，其各位数字的立方和等于该数本身。用两种不同的方法求所有的“水仙花数”。 ("narcissi few" refers to a triple-digit, the number of cubic you and equal to the number itself. Using two different methods for all of the "Narcissus few.")

This is code to simulation of AM, FM, PSK, QAM modulation

说明：  Leslie模型实例：基于Leslie矩阵的算法，同时将人口按10年一组分成m个年龄段，并根据一些影响人口数量和结构的重要因素（建立模型。再根据我国近十年的二孩出生率的实际情况并结合少数民族不受影响的因素，通过Matlab画出拟合曲线对2017-2030年我国每年人口总数做出预测。此后，根据近十年0-14岁、15-64 岁、65岁及以上三个年龄段的人数，计算出人口抚养比，用Matlab预测至2030年的人口结构。为了使预测更加精确，我们还将夫妇的生育意愿考虑到模型当中。(Based on the Leslie matrix algorithm, the population is divided into m age groups according to a group of 10 years, and according to some important factors that affect population size and structure Modeling. Then according to the actual situation of the birth rate of second-born children in China in the past ten years and combining the factors that are not affected by ethnic minorities, drawing a fitting curve through Matlab will make a prediction for the total population of China in 2017-2030. After that, based on the number of people aged 0-14, 15-64, and 65 years of age in the last ten years, calculate the dependency ratio of the population and use Matlab to predict the population structure by 2030. In order to make the prediction more accurate, we also consider the couple's fertility intention in the model.)

solving restricted 3rd body problem

基于SIMPLE 算法模拟平板间强制对流速度与温度场的matlab程序，并可分析怒谢尔数，传热系数(SIMPLE algorithm simulation based on forced convection between flat rate and temperature field matlab program, and the number of anger Rochelle, heat transfer coefficient)

MATLAB/Simulink属于一种通用的科学计算和系统仿真语言。在MATLAB/Simulink下，从数学模型到计算机仿真模型的转换非常容易。MATLAB/Simulink提供了三种?方法：(MATLAB/Simulink is a general-purpose scientific computing, and system simulation language. In MATLAB/Simulink from the mathematical model to a computer simulation model of the conversion is easy. MATLAB/Simulink to provide ? three methods:)