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MEAN SHIFT SOURSE CODE

数字带通滤波器设计原理以及设计不同带宽的带通滤波器实例(Digital band-pass filter design theory and design of different instances of band-pass filter bandwidth)

PermanentMagnetSynchronousMachine,model and simulaltion

matlab fem code is thr

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.

说明：  永磁同步电机矢量控制id=0，最大转矩电流比控制。(MPTA of PMSM,(PMSM vector control id = 0, maximum torque current ratio control.))

第１章　对流层有关特性 第２章　对流层散射传播机制 第３章　对流层散射传输损耗 第４章　对流层散射信号慢衰落特性 第５章　对流层散射信号相关特性及谱特性 第６章　对流层散射信号统计分布特性 第７章　分集接收信号统计分布特性 (Transmission mechanism, transmission loss, slow fading characteristic, correlation characteristic and spectrum characteristic, statistical distribution, diversity reception signal statistical distribution characteristics )

无约束一维极值问题 minGS 最小化代码(One-dimensional unconstrained extremum problem)

实现点对点的迫零、最小均方误差和奇异值分解的预编码(point-to-point pre-coding including ZF,MMSE,SVD.)

功率谱分析 matlab 解压后 使用时在matlab里set path ，该文件不用修改，运行后plot即可得出图形(power spectrum analysis)