距离 akgo

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.

this is DOA estimation algorithm

生成无标度网络,是研究复杂网络的一个重要基础.(Generate scale-free network is to study the complex network is an important foundation.)

包括matlab环境下的步态识别代码，视频序列、ppt展示及相关文献(Including gait recognition code in the Matlab environment, the video sequence, ppt show and related literature)

很好的算法，很好的程序，能够实现最小信道的确定(It s a good code ,and it s a good program ,it can make something true )

matlab智能基本算法集合。 包括各类寻优算法，以及一些简单的基于基本算法的改进文献和代码。

本文是关于QPSK测试的matlab源码(This article is about the QPSK test matlab source)

包括广义互相关函数GCC时延估计，Matlab实现界面友好，非归零型差分相位调制信号建模与仿真分析 ，GSM中GMSK调制信号的产生，本科毕设要求参见标准测试模型，基于人工神经网络的常用数字信号调制。

说明：  自组织特征映射的一种基本算法，供初学者使用(Self-organizing maps as a basic algorithm for beginners)

根据matlab的bvp4c函数的例子思想方法，求解特征值和特征函数，可以解变积分边界的问题，但是须给一个比较精确的初特征值。此为自编程序，已经标明注释。所附为bvp4c相关例子（此从matlab帮助文件节选）。(use the matlab solver bvp4c to obtain the both eigenvalues and eigenfunctions of BVPs, an exact initial eigenvalue is needed.)