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说明：  003小波变换及其MATLAB工具的应用(003 DWT and MATLAB application tools)

Noise and vibration analysis for MDOF system

CMMB中的基于MATLAB仿真的采用BPSK的OFDM调制的源代码(OFDM modulation used BPSK source code in the CMMB which based on the MATLAB simulation )

Linear Neighborhood Propagation 系数求解(Linear Neighborhood Propagation coefficients )

Nonparametric methods to analyze and detect knock injection engines. Two signals are considered: vibration signal and pressure signal

make the simple game of life. it only uses 50 X 50 size of point and time limited system.

基于新型群智能算法-鸽群算法的图像配准程序。(a novel swarm intelligent optimization algorithm- pigeon inspired optimization for the image registration.)

数字通信系统QAM仿真程序，基于MATLAB。(QAM digital communication system simulation program, based on MATLAB.)

simple matlab examples

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.