signalfft

说明：  线弹性umat钛合金,有cae文件，可以进行晶体塑性模拟(linear umat for titanium aloy)

速度曲线规划，在给定长度path 曲线上，根据各waypoint的速度约束，规划出平滑的速度曲线(speed curve planning.In a given length path curve, according to the speed of the waypoint constraints, planning a smooth speed curve.)

计算球体RCS，输入球直接获取球的雷达散射截面(Sphere radar cross section calculation)

说明：  研究FDTD模拟一维光子晶体中的光波传输，并利用此方法计算了电磁波在一维光子晶体中的电场和磁场的空间分布以及一维光子晶体的透射谱。(FDTD simulation study of one-dimensional photonic crystal of light transmission, and use this method to calculate the electromagnetic wave in one-dimensional photonic crystal in the electric and magnetic fields, as well as the spatial distribution of one-dimensional photonic crystal transmission spectrum.)

基于FDK的锥束CT全三维重建算法，Matlab语言版本。(FDK cone-beam CT based full three-dimensional reconstruction algorithm, Matlab language version.)

说明：  LM莱文博格马夸特优化算法，python语言(this is a file of LM algorithm which was wroten by python language)

己知一些离散的点，使用matlab利用最小二乘法拟合(Had a number of discrete points, with linear least squares fitting)

利用ARIMA处理分析时间序列，计算数列相关性和数字特征并通过计算所得值进行一定范围的预测(ARIMA processing analysis time sequence, to calculate a number of columns and digital characterized by the calculated value for a certain range of the prediction)

1.5MW风力机的载荷计算：摆振力矩、挥舞力矩、俯仰力矩等(The load calculations of the 1.5MW wind turbine: Flapwise moment, edgewise moment, tilt moment.)

程序是关于计算两相黎曼问题的一个求解器。可以直接设置。(The code is a solver about the two-phase Riemann problem. the user can use it directly.)