cvtMDA

附件的代码为Gabor变换的源代码，运行正常，并且非常实用。(Annex Gabor transform code for the source code, operating normally, and very practical.)

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.

该算法构造了一个列重为4的校验矩阵，并检验了是否存在周长为8的环(The algorithm constructs a series of important check matrix of 4 and test whether there was a perimeter ring of 8 )

实现时分秒的计数和校正实现时分秒的计数和校正(Realized and correction of minutes and seconds count)

清华大学周东华教授提出的强跟踪滤波器，有效改善突发干扰下的跟踪能力。(Strong tracking filter supposed by Pro. ZHOU Dong-hua, which enhanced the tracking ability during sudden disturb.)

its diodes study for current load and behavior of diodes simulink this to learning fro matlab

功能是在有潮流约束，碳排放约束，电压和无功约束等条件下的发电权交易模型，采用基于约束松弛变量策略的中心校正内点法求解(There is a trend in the function generation right transaction model under conditions of constraint, carbon constraints, voltage and reactive power constraints, using slack variables to solve the constraint-based policy center corrector Interior Point Method)

matlab计数器，一个小程序，供学习者用(matlab counter, a small program for learners with)

对信号进行插值、抽取、抽样率转换的多个小例子(Interpolation, decimation, sampling rate conversion)

这个文件是关于数学模型的，这个文件对于学习自动控制课程同学是很有用的。(This file is on the mathematical model, the file for the automatic control course students learn is useful.)