timeanalysis

MATLAB程序设 MATLAB语言与现代科学运算 高等应用数学问题的MATLAB求解(MATLAB program based MATLAB language and application of modern science and advanced computing to solve mathematical problems in MATLAB)

Numerical method e book

说明：  三维重建，利用matlab实现ct影像重建(Three-dimensional reconstruction)

VOLUMEMESH1 Creates "open" volume metal meshes and their modificitations

nsga2源码下载。。。。。。。。。。。。。。。。。。。。。(nsga2 code)

汉森的金融程序广义t分布（matlab程序）(Hansen s matlab code for finance )

Markov Chain Monte Carlo and gibbs sampling

les 4 algorithmes standards de localisation en matlab

Electromagnetic Waves And Antenna (matlab)

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.