单个圆形活塞换能器指向性

说明：  根据一设定运动轨迹进行模糊pid观测器设定，让后进行跟踪，实现有效跟踪。(According to a set motion trajectory, the fuzzy PID observer is set, and then the tracking is carried out to achieve effective tracking.)

转子磁场定向矢量控制的PWM逆变器仿真模型(Simulation Model of PWM Inverter with Rotor Field Oriented Vector Control)

基于hypermill 10的五轴后处理转换器，优化了算法，中文界面。支持多种结构的五轴机床刀路仿真，输出高质量刀路。是五轴雕刻机的必备后处理转换器。(Based on the hyperMILL 10 five axis post processing converter, the algorithm, the Chinese interface is optimized. Support a variety of structure of the five axis machine tool path simulation, output high quality tool path. It is the necessary post-processing converter for the five axis engraving machine.)

节点度是指和该节点相关联的边的条数，又称关联度。 特别地，对于有向图， 节点的入度 是指进入该节点的边的条数; 节点的出度是指从该节点出发的边的条数。(Node degree refers to the number of edges associated with the node, also known as the degree of association. In particular, for a directed graph, The ingress of a node is the number of edges entering the node; The out-degree of a node is the number of edges that start from that node.)

滑模变结构 刘金坤 ，很好用，很实用，特别是机器人控制方向。(sliding mode control liujinkun)

matlab LPC 基于线性预测的参数编码(matlab LPC Parameter coding based on linear prediction)

说明：  北京航空航天大学航智能控制第二版配套的仿真程序(Simulation program of intelligent control Second Edition from Beijing University of Aeronautics and Astronautics)

说明：  MATLAB OFDM仿真代码，采用QPSK调制(MATLAB OFDM simulation code, using QPSK modulation)

利用椭圆方程完成NACA0012翼型的网格绘制(Finishing the mesh drawing of NACA0012 airfoil by using elliptic equation)

说明：  采用Python脚本语言二次开发ABAQUS的前处理模块创建了一个带孔平板模型，实现了参数化建模。(Parametrical model using Python in Abaqus.)