radar

实现弧度向角度的转换，判断在第几象限。。。。。。(Realize the conversion of radian to angle and judge the quadrant)

复杂曲面，可用于超精密车床铣床测试精度标准件(Complex surface, which can be used to test precision standard parts of ultra-precision lathe milling machine)

说明：  利用有限元对板建立模型，然后通过模态分析求出求特征频率与振型，并能够可视化(The finite element method is used to establish the model of the plate, and then the characteristic frequency and vibration mode can be obtained through modal analysis, which can be visualized)

本程序为扩展有限元程序，可以模拟裂纹扩展过程，如果内置裂纹开裂速率，可以进行试件疲劳寿命预测。(This program is an extended finite element program, which can simulate the crack propagation process and predict the fatigue life of specimens if the crack rate is in place.)

说明：  该软件以函数化方式表示微结构换能元的边界，生成微结构换能元电热耦合仿真计算的ANSYS命令流，获得微结构换能元的电流密度、温度分布、温度梯度、电压分布等参量。该软件的技术特点在于，集成了直接耦合的微结构换能元电热耦合仿真计算方法，适用于V型边界、圆弧边界和椭圆形边界的MEMS换能元，并能进行数据及计算结果的打开、保存、输出、显示与打印。(The development purpose of the software is to express the boundary of the micro structure transducer element in a functional way, generate the ANSYS command flow of the micro structure transducer element electrothermal coupling simulation calculation, and obtain the current density, temperature distribution, temperature gradient, voltage distribution and other parameters of the micro structure transducer element. The technical feature of the software is that it integrates directly coupled thermal electric coupling simulation calculation method of micro structure transducer. It is suitable for MEMS transducer with V-shaped boundary, circular arc boundary and elliptical boundary, and can open, save, output, display and print data and calculation results.)

MATLAB 实现的神经网络人脸识别 视频教程哦(MATLAB neural network realization of video tutorials Oh Face Recognition)

根据舰船螺旋桨噪声一书给出的计算空泡噪声的公式，简便计算各种条件下的螺旋桨噪声级的程序(According to the formula for calculating the cavitation noise given in the book "Propeller Noise of Ships", the program for calculating the propeller noise level under various conditions is simple and convenient.)

说明：  对网上现有的产生m序列的线性反馈移位寄存器代码进行了修改，可以通过输入本原多项式向量，生成相应m序列(The existing linear feedback shift register code for m-sequence generation on the Internet is modified. The corresponding m-sequence can be generated by inputting the primitive polynomial vector)

说明：  实现弧度向角度的转换，判断在第几象限。。。。。。(Realize the conversion of radian to angle and judge the quadrant)

说明：  实现电动汽车的有序充电仿真，兼用光伏发电，实现电动汽车对电网的友好(Orderly charging of electric vehicles)