MABCPtestfunction

This document is astep by step guide to design digital filters using matlab

雷达仿真的MATLAB代码，提供了大量仿真实例，非常实用！(MATLAB code for radar simulation, and provides a large number of simulation examples, very useful!)

matlabGUI编程实例：常用数学符号运算工具集合，主要功能包括：因式分解，合并同类项、求微分积分，泰勒展开和函数作图等。对学习初步的matlab界面设计有着一定的参考价值(matlabGUI programming examples: commonly used mathematical symbols collection of computing tools, the main features include: Factorization, the merger of similar items, and points differential, Taylor expansion and function, such as mapping. Learning matlab preliminary interface design is a certain reference value)

计算夫琅禾费圆孔函数傅里叶变换的脚本M文件(Calculation of the the Fraunhofer hole function Fourier transform script M-file)

基于遗传算法的自动组卷算法，能实现按照知识点、难度、区分度的自动试题提取组卷。(Automatic test paper based on genetic algorithm, can achieve according to knowledge, the difficulty of distinguishing the degree of automatic extraction of test paper questions.)

说明：  VC++连接MATLAB,VC++连接MATLABVC++连接MATLAB,VC++连接MATLAB,VC++连接MATLAB,VC++连接MATLAB (VC++ to connect MATLAB, VC++ connection MATLABVC++ connection MATLAB, VC++ to connect MATLAB, VC++ to connect MATLAB, VC++ connection MATLAB)

用欧拉角表示的飞行器姿态运动学方程在大角度时会出现奇异现象,而采用四元数来 表示,则可以避免这个问题。因此,飞行器运动学方程都采用四元数来表示。而飞行器的控 制规律都采用欧拉角来表示,且欧拉角表示姿态角比起四元数更加形象,更易于被人理解, 所以,在飞行器控制系统仿真设计的时候,需要四元数与欧拉角之间的转换。给定1 个欧拉 角,对应1 个四元数,因而欧拉角到四元数之间这种一一对应的关系使得欧拉角到四元数的 转换比较容易。但是,1 个四元数通常有1 个或者2 个欧拉角与之对应,它们之间不是一一 的对应关系,因而,四元数到欧拉角之间的转换比较困难。一般文献或者参考资料上的转换 仅仅适于欧拉角在- 90°～ + 90°之间的情况[1 ] 。文献[ 2 ,3 ]中给出了滚动轴在- 90°～ + 90° 之间变化,俯仰轴、偏航轴在- 180°～ + 180°之间变化的四元数到欧拉角的转换公式。本文 提出了滚动、俯仰和偏航3 个轴的欧拉角均在- 180°～ + 180°之间取值的全角度转换算法, 经过数字仿真证实,这个算法是完全正确的、而且很实用。(Euler angles of the spacecraft attitude kinematics equation at large angles appear strange phenomenon, and quaternion , You can avoid this problem. Therefore, the aircraft kinematic equations using quaternion to represent. Aircraft control The system of law Euler angles and Euler angles attitude angle than the the quaternion more image easier to be understood, Therefore, in the design of aircraft control system simulation, you need to convert between quaternions and Euler angles. Given an Euler Angle corresponding to a quaternion, which this one-to-one relationship between the Euler angles to quaternion makes Euler angles to quaternion Conversion is relatively easy. However, a quaternion usually have one or two corresponding Euler angles between them than eleven The correspondence relationship, therefore, the quaternion to convert between the Euler angle is relatively difficult. General literature or reference conversion Only suitable for Euler angles- 90 ° to+ 90 ° betwe)

FFT频谱分析，包括矩形波，三角波，及其功率谱(FFT spectrum analysis)

Its algorithm for find comparision between ICA and PCA

贝塞尔曲线拟合，demo，能实现相应的结果。(Bessel curve fitting, demo, can achieve the corresponding results.)