bihuan 1

叠前时间偏移代码，fortran格式，可以用于三维地震数据处理，可以在此基础上进一步完善其应用范伟。(Kirchhoff time migration code fortran version)

说明：  选取四个点，自动判断是否在一个平面上。同一个平面上。则绘制一个多边形。不在一个平面，则以前三个点为底面，构成一个椎体。支持Move等转换命令，存图与开图，实现Jig交互绘制等。(Four points are selected to automatically determine whether or not they are on a plane. On the same plane. Draw a polygon. If it is not in a plane, the first three points are at the bottom, forming a vertebral body. Support Move and other conversion commands, save and open maps, Jig interactive rendering, etc.)

利用netcd库 python语言读取nc气象文件(Using Python language of netcd library to read NC meteorological files)

说明：  对spwm进行仿真时的参数调整以达到实现变频调速仿真目的(Parameter adjustment in SPWM simulation to achieve the purpose of variable frequency speed control simulation)

说明：  程序模拟的潮流的手算过程，计算潮流分布，电压分布，前推回代(The program simulates the manual calculation process of the power flow and calculates the power flow distribution)

在采用差频接收下的二维RMA算法仿真程序(The simulation program of two dimensional RMA algorithm based on differential frequency reception)

说明：  2自由度汽车模型 m文件及simulink模型集合，用于操纵稳定性仿真(2-DOF vehicle model m file and Simulink model set for handling and stability simulation)

Mie散射相函数MATLAB源程序，求mie散射系数an、bn及散射角等(MATLAB Functions for Mie Scattering and Absorptio)

说明：  采用相场方法，进行枝晶生长计算-标记为相场动力学模型A。(calculation of dendrite growth-model A)

使用白塞尔方法进行大地主题解算，正算由大地线和大地方位角计算经纬度，反算有经纬度计算大地线长度和大地方位角(Using the white Searl method to solve the geodetic problem, we calculate the longitude and latitude by the geodesic and the earth azimuth, and calculate the geodesic length and the large local angle by calculating the longitude and latitude)