beijingyouhua

概率密度或分布通用函数，其中包括正态分布，二项分布，指数分布等(Probability density or distribution of generic functions, including normal distribution, binomial distribution, exponential distribution)

m文件形式的无人机仿真模型，做到状态仿真阶段，后续可根据情况进行纵向和横向的设计(In the form of m file, an UAV simulation model,the state simulation stage have done, following it can be used to design the vertical and horizontal situation)

This tutorial deals with the rootfinding, interpolation, numerical differentiation and integration and numerical solutions of the ordinary differential equations.

实现资料预测，输入训练集数据和测试集数据可以得到对应的均方根误差(Realization data prediction)

瑞利衰落仿真实验,提供了实验多的源程序，完整版 可以运行‘英文是ralyeight 文件名ralyeight(ralyeight)

相控阵直线阵生成程序，可直接生成直线阵列方向图并加载窗函数(program for linear array pattern design)

采用c++调用matlab写的一个sift算法，其中调用matlab只是使用其中几个函数。可以很准确的检测出sift特征点。(Using c++ to call a matlab write sift algorithm, which used to call only a few matlab function. Can accurately detect the feature points sift.)

仿照着《小波去噪中软硬阈值的一种改良折衷法》一文写的程序，对比了软、硬以及软硬阈值折衷法的信噪比及均方根误差。仿真出来之后，原信号的信噪比是负的，不知道为什么？均方根误差的值也比较大，不知何解？信噪比和均方根误差是参照《基于matlab的小波去噪仿真》：吴伟，《信息与电子工程》 一文写的(Modeled on the written procedures of the hard and soft threshold wavelet de-noising an improved compromise " , compared to the soft and hard compromise between the hard and soft threshold signal-to-noise ratio and root mean square error. Out of the simulation, the signal-to-noise ratio of the original signal is negative, do not know why? The value of the root mean square error is relatively large, do not know why? Signal-to-noise ratio and root mean square error with reference to the wavelet denoising matlab-based simulation: Wu Wei, " Information and Electronic Engineering" written)

说明：  详细讲解EM（期望最大化）算法，并使用混合高斯分布示例编程实现解答(Explain EM (expectation maximization) algorithm in detail, and use mixed Gaussian distribution example programming to realize the solution)

Dynamic Voltage Restorer with simulink