IGBT逆变器采用SPWM技术power_3level

说明：  使用matlab进行超声波阵列指向性仿真(Simulation of directivity of ultrasonic array using MATLAB)

通过matlab编程实现了比例导引法制导的弹目飞行的轨迹生成(Trajectory Generation of Missile Guided by Proportional Guidance Method)

说明：  udf算法，FLUENT模拟定义，在不同时间变热流密度下进行用户自定义设置(Temperature UDF algorithm)

风电机组电压波动与闪变的发射强度与传播规律simulink仿真(The voltage fluctuation of wind power unit and the emission intensity and propagation rule simulink simulation.)

计算井筒注入或者生产过程中的摩阻系数，可用于井筒压力分布预测(Wellbore fraction coefficient calcuation method)

说明：  将一个50Hz的干扰信号加入到白噪声中，然后对合成信号做fft，得到相应的幅频谱图和相位谱图。(A 50 Hz interference signal is added to the white noise, and then the composite signal is FFT to get the corresponding amplitude spectrum and phase spectrum.)

已知动力系统方程，利用质量、刚度和力向量，求解响应程序(According dynamic system equation, including mass, stiffness and force vector, it is the program to be used to solve response)

包括GPS仿真的全套代码，matlab和C#。GPS信号的模拟、捕获、追踪，以及数据的处理，极限的解算，周跳的探测及整周模糊度的接算。有用的资料与大家共享后才能体现其价值，希望同仁们也能及时共享比较好的资料，大家一同探讨、进步。(ncludes a full set of GPS simulation code, matlab and C#. GPS signal simulation, capture, tracking, and data processing, limit solution, cycle slip detection and integer ambiguity. Only when useful information is shared with all of you can it reflect its value. We hope that colleagues can also share better information in time, and everyone will discuss and progress together.)

说明：  MATLAB实现二级倒立摆稳摆过程，用MATLAB进行仿真建模，并做角度位置分析(MATLAB realizes the stabilization process of double inverted pendulum)

说明：  abaqus纯镁切削算例文件，可直接计算(ABAQUS pure magnesium cutting example file can be directly calculated)