exp2

for fast optimize programming in matlab

利用9元平面线阵对空间4个声源进行定位，信噪比为10db，music 算法，谱峰较尖锐(9 elements planar array to localize 4 signal DOAs, MUSIC method ,snr is 10db, well spectral peak )

DC-Motor Simulation and System Identification

E2LSH代码最全面的介绍，里面详尽的介绍了每一个函数的作用(E2LSH code for the most comprehensive introduction, which describes in detail the role of each function)

说明：  四旋翼无人机是一种可以被遥控也可以在无人为控制的状态下执行预定任务的飞行器，与传统直升机相比四旋翼飞行器的机械结构简单，且具有高精度，灵活精度以及较低成本的特点，被广泛用于军事侦察，农艺播撒、快递派送、摄影工作等领域。四旋翼飞行器自身具有欠驱动、多变量、非线性等特性，在外界的噪声干扰情况下，增加了四旋翼无人机的不稳定以及控制系统的设计难度。所以对四旋翼飞行器的位姿控制的研究，可以开拓科研人员对控制算法以及滤波算法的认知，具有重要的研究意义。(Four-rotor UAV is a kind of aircraft that can be controlled remotely or perform scheduled tasks without human control. Compared with traditional helicopters, the Four-rotor UAV has simple mechanical structure, high precision, flexible precision and low cost. It is widely used in military reconnaissance, agricultural broadcast, express delivery, photography and other fields. Four-rotor UAV has the characteristics of under-actuation, multi-variable and non-linearity. Under the circumstance of external noise, the instability of Four-rotor UAV and the difficulty of control system design are increased. Therefore, the research on attitude control of Four-rotor aircraft can broaden the knowledge of control algorithm and filtering algorithm for researchers, and has important research significance.)

说明：  卡尔曼滤波器，鲁道夫博士设想的。Kalman(1930-2016)提供了一种有效的机制来估计动态系统的状态，当一个模型可以顺序预测状态和顺序测量也是可用的。在许多实际动力系统的研究中，在不同领域中，这是一种常见的情况。(Matlab implementation of Kalman filter)

一个7段的显示器，及按一定顺序循环得到的结果，可重复使用(A 7-segment display, and by a certain sequence and cycle the results obtained can be reused)

matlab 的关于到谱分析算法的程序，对于初学者有一定的帮助，易于学习到谱分析算法。(Matlab about spectrum analysis algorithm procedures for beginners have certain help, easy to learn spectrum analysis algorithm. )

计算mie散射中的散射系数，an，bn，cn，dn 在研究粒子散射问题时很关键(Mie scattering in calculating the scattering coefficient, an, bn, cn, dn in the study of particle scattering problem is critical)

template for recognition system.template for recognition system. template for recognition system.