fuzzy0

风电叶片设计，利用Glauert公式计算诱导因子a，b(Glauert formula to calculate the induced factor a and b)

calculating the square root of A by Newton method used to calculate the root of A by the method of Newton: usual and the modified method

石油行业软件,有限差分法在地震资料处理中的应用程序源码(The oil industry software, finite difference method in seismic data processing application source code)

this code is used to find short time fourier transform

在simulink环境下的车辆PID控制算法(PID control for vehicle)

算法程序实现了多层次灰色综合评价，并且有层次分析法的对比，三层的。(Algorithm program to achieve a multi-level gray comprehensive uation, and contrasting the Analytic Hierarchy Process, three layers.)

雷达的坐标系相关变换说明文档，介绍了雷达坐标西与大地坐标系的变换关系，参考使用可以编织坐标变换代码(Radar Coordinate Transnate)

说明：  国内著名R语言入门教材清华大学出版社 介绍R语言基本应用，同时结合相关统计学理论进行实例分析(Chinese famous textbook of R introduce R and example analysis)

matlab有限元 3-D FDTD code with PEC boundaries (matlab finite element 3-D FDTD code with PEC boundaries)

针对永磁同步电机常规直接转矩控制系统涉及到的问题,例如磁链的准确观测、定子电阻的变化、电压矢量开关表的改进以及滞环控制器的改进等等,本文都作了详细的分析,并提出了改进方案。为了提高系统的性能,本文将空间矢量调制的方法引入了常规直接转矩控制中,并在此基础上,对永磁同步电机无速度传感器问题作了详细的分析,总结了国内外的研究热点,提出了采用转子磁链矢量为基础的永磁同步电机直接转矩控制速度估计方法。仿真结果表明,该方案具有很好的动、静态特性。(Firstly, the paper analyzes the principle of direct torque control of permanent magnet synchronous motor and elaborates the impact of space voltage vector of the stator flux and the electromagnetic torque.Secondly, the paper introduces direct torque control of permanent magnet synchronous motor SVPWM technology.Under the same hardware conditions,the system can obtain More continuous voltage space vector by taking advantage of SVPWM.The simulation results show the program not only keeps the direct torque control fast dynamic response, but also reduce the motor torque ripple.)