genetic-fuzzy-(ga_fuzzy)

用Matlab仿真了基于EPC-C1G2标准的RFID阅读器发送模块的PIE编码及ASK调制。(Simulation using Matlab based on EPC-C1G2 standard RFID readers to send the module code and ASK modulation PIE.)

说明：  读、写surfer文本的GRD格式的matlab程序，适合不需要插值的数据读写，比surfer自带的数据网格化功能处理的速度要快几十倍、甚至上百倍，可以处理大容量数据。(Reading and writing text surfer GRD format matlab program for reading and writing data without interpolation, the grid than the surfer' s own data processing capabilities several times faster, or even a hundred times, can handle large amounts of data.)

说明：  这是黑龙江大学自动控制专业杨易鹏同学用matlab编写的广义最小二乘算法!(Heilongjiang University automation Yang Yi Peng students using Matlab prepared by the generalized least squares algorithm!)

matlab codes for econometrics

Error calculation set. For statictic purposes

通过构造加博函数进行加博滤波实现对指纹图像的分割(By constructing Gabor function Gabor filter is on the fingerprint image segmentation)

牛顿拉夫森法用来解决极大似然估计的问题。很好用。(Newton La Fusen method to solve the problem of maximum likelihood estimation. Good use.)

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.

SERIAL ACQUISITION OF PSEUDO NOISE PN

一种（LFM）Linear frequency modulation雷达的仿真(Linear frequency modulation (LFM) radar simulation)