IdealLowPassFilterusingDFT

GPS定位,GPS原理和应用，GPS实验等(GPS positioning)

本程序通过对IIR滤波器系统级联和并联及系数量化对系统性能的影响(This procedure IIR filter system by cascading and parallel and coefficient quantization on system performance)

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.

this is the Broyden s method for solving nonlinear system of equations

Matlab 中GUI的使用方法以及功能，具有详细的源代码，简单易懂，适合GUI的初学者。(the use of the GUI of matlab)

用matlab实现股票分析中的RSI指标，可用于例程学习(Stock analysis using matlab realize the RSI indicator can be used for routine learning)

说明：  ort = IO(x,imf) computes the index of orthogonality

HDB3扰码技术的matlab编程实现，自己的论文整理，计算机原理必备(HDB3 scrambler technology of matlab programs, their papers, computer principle is necessary)

palm vein detection a suitable way of biometric recognition...implemented on selected images

matlab实现智能天线的波束调向功能，并显示结果。(matlab smart antenna beam tune to the function, and displays the results.)