compass_revise

threephase induction motor with braking

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.)

合成地震记录是用声波测井或垂直地震剖面资料经过人工合成转换成的地震记录（地震道） 合成记录的制作是一个简化的一维正演的过程，合成记录F(t)是地震子波S(t)与反射系数R(t)褶积的结果。(Synthetic seismogram is sonic or vertical seismic profile data after conversion into synthetic seismograms (seismic trace) the production of synthetic seismogram is a simplified one-dimensional forward modeling process, synthetic seismogram F (t) is the seismic wavelet S (t) and the reflection coefficient R (t) the convolution results.)

GAIN x2 MODEL IS SHOWEN IN THIS MODEL

说明：  光伏并网逆变器，可以学光伏组件及逆变器控制(Photovoltaic grid connected inverter, can learn photovoltaic modules and inverter control)

Program for decomposing a matrix by the Doolittle Algorithm

这是一个一阶倒立摆系统，用MATLAB语言对其仿真，精度高。(This is a first-order inverted pendulum system, its simulation using MATLAB language and high accuracy.)

说明：  《matlab的90个实例(GUI)》是我学习GUI的宝贵资料，和大家分享(&quot Matlab 90 instances (GUI)&quot is the GUI I learn valuable information, and share)

说明：  MATLAB生成mif、hex（QUARTUS II）文件简介(MATLAB generate mif, hex (QUARTUS II) paper provides a brief)

研究风电接入对电力系统影响的经典书籍,适用于相关专业人士(classical text book to learn about winder power and its affect on power system)