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传统的从动轮式减振器在柴油机5挡时的减振效果模拟建模(The traditional shock absorber in the diesel engine driven wheel 5, when the damping effect of block simulation modeling)

用matlab做的三电平SVPWM逆变器的仿真，能够实现svpwm的基本功能，但是还不完善。(Using matlab to do a three-level SVPWM inverter simulation, svpwm to achieve the basic functions, but not perfect.)

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.)

对运动估计传统的各个方法，例如全搜索，菱形法，自适应，三步法，四步法，以及它们的几种改进的matlab实现(Motion estimation traditional methods, such as full search, diamond method, adaptive, three-step, four-step, and their several improvements matlab implementation)

上传信道估计代码，实现LTE的信道估计器，新手上传，不吝赐教(LTE channel estimator code)

makanyabi fault in the generator

数字信号处理 FFT的matlab实现 很好理解的资料(FFT matlab digital signal processing to achieve a good analysis of data)

这是对广义高斯分布中两个参数alpha,beta的估计方法，对自然图像的大量统计特征就符合这一分布。(function [f, g] = dggbeta(beta, absx) DGGBETA Derivative of generalized Gaussian pdf with respective to beta [F, G] = DGGBETA(BETA, ABSX) Return partial derivative and second order partial derivative This is an utility function for GGMLE ABSX is the distance of the data from the mean Function is undefined for negative beta if beta <= 0 f = NaN g = NaN )

说明：  基本的Qpsk调制和解调方式，采用的是A方式，并且画出误码率和信噪比的比例图(QPSK simulation)

bilinear zoom, subpixel technique for image processing