BME-Data-analysis

无噪情况下MUSIC算法doa估计MATLAB程序(MUSIC algorithm estimates doa)

三维点云法向量估计综述由于获取方便、表示简单、灵活等优势，点云逐渐成为常用的三维模型表示方法之一。法向量作为点云必不可少的属性 之一，其估计方法在点云处理中具有重要的位置。另一方面，由于点云获取过程中不可避免的噪声、误差和遮挡，点云中通常含 有噪声、外点和空洞，并且部分采样模型如CAD模型，也会存在尖锐特征，这些都给法向量估计提出了挑战。对当前已有的点云 法向量估计算法进行综述，分析其原理及关键技术，着重分析它们在处理噪声、外点和尖锐特征等方面的能力并给出比较，最后 为未来研究提供了一些建议(The three-dimensional point cloud normal vector estimation summarized obtain convenient, represents a simple, flexible, and becoming one of the methods commonly used three-dimensional model represents the point cloud. Normal vector of one of the as point clouds essential attributes, its estimation method has important position in the point cloud processing. On the other hand, the noise is inevitable in the process to obtain because of the point cloud, error and occlusion, point cloud typically contains noise outside point and empty, and part of the sampling model such as CAD models, there will still be sharp features, which gave the normal vector estimated that presents a challenge. Overview of current existing point cloud normal vector estimation algorithm, analysis of the principle and key technologies, and analyzed their ability to deal with the noise, the outer points and sharp features and gives comparison, and finally provide some suggestions for future research)

计算随机数的方差，做单一元素一元方差分析。多元素二元方差分析。(Calculate the variance of the random number, do one yuan a single element analysis of variance. Multi Elements in Binary analysis of variance.)

用matlab实现低通滤波器。采用的是FIR低通滤波器实现。(Low pass filter with matlab. Using the FIR low-pass filter.)

学习小波分析的人员现在可以下载此文件通过MATLAB实现(Study of wavelet analysis can now download this file via MATLAB Implementation)

fiminunc、GA、PSO三种算法优化PID参数(fiminunc, GA, PSO three algorithms to optimize PID parameters)

说明：  MATLAB语言的应用何衍庆：教材，和相关程序(He Yanqing MATLAB language application: teaching materials, and related procedures)

分别用解析法和数值法求出并画出信号的幅度谱，并比较它们的结果。(Fourier Transform.)

Sines. Sum sines. Every operations with sines and cosines.

针对分布式驱动电动汽车的质心侧偏角估计编写了UKF估计代码(A UKF estimation code is developed for the estimation of the center-of-mass slip angle of the distributed drive electric vehicle)