my2KSW

说明：  形成导纳矩阵的一个小程序，课程设计是做的，希望对你有用(Admittance matrix )

false nearest neighbor calculation on a signal as a chaotic indicator

The modeling and attitude stabilization control problems of a four-rotor vertical takeoff and landing unmanned air vehicle (UAV) known as the quadrotor are investigated.The quadrotor’s attitude is represented by the unit quaternion rather than Euler angles to avoid singularity problem. Taking dynamical behavior of motors into consideration and ignoring aerodynamic effect, a nonlinear controller is developed to stabilize the attitude.The control design is accomplished by using backstepping control technique.The proposed control law is based on the compensation for the Coriolis and gyroscope torques. Applying Lyapunov stability analysis proves that the closed-loop attitude system is asymptotic stable. Moreover, the controller can guarantee that all the states of the system are uniformly ultimately bounded in the presence of external disturbance torque.The effectiveness of the proposed control approach is analytically authenticated and also validated via simulation study.

基于双平行线阵的声矢量传感器的MUSIC算法 用于在高斯白噪声环境下估计信号的到2维达角度 (MUSIC algorithm based on dual parallel linear array of acoustic vector sensor it can be used to estimate the signal in Gaussian white noise environment to the two Vader angle)

This is not my work but a function I use often. It is much faster than the conv2 function in matlab

画圆的算法，可用Matlab编程,也可用Mathematica软件编程(Circle algorithm the available Matlab programming, also be used Mathematica software programming)

Implementation of Quadrature Amplitude Modulation-Demodulation

这里用模糊函数对Barke进行分析，研究其时间和频率的 分辨率。(barker )

说明：  matlab 卫星N 文件、O文件读取，计算出卫星坐标和测站坐标，精度为10M左右(matlab satellite N files, O file read, calculate the satellite coordinates and station coordinates, and an accuracy of about 10M)

Matlab 各种电动机的仿真，以及在运行中出现状况是的故障仿真，一共50个(Matlab simulation of various motor, as well as in operation in the condition of fault simulation)