chp6ex11

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)

可靠度的快速算法 强度分布 指数分布 应力分布 正态分布(Reliability of the fast algorithm exponential intensity distribution normal stress distribution)

二维交叉熵Matlab源代码，方便修改，用于计算图像压缩方面(Two-dimensional cross-entropy)

matlab 并行工具包 parfor spmd 等多核并行工具包使用方法(matlab parallel toolkit parfor spmd such as the use of multi-core parallel toolkit)

用MATLAB仿真闪耀光栅光强的分布，可以通过三维图直观地观测强度变化(Simulation blazed grating light intensity distribution with MATLAB, you can visually observing intensity changes through three-dimensional map)

分析Samples per symbol对simulink调制模块的影响(Analysis of Samples per symbol to the modulation module of simulink)

实现修正注水算法，对已知信道CSI和未知信道的CSI的编程和比较，对MIMO信道的信噪比估计(The channel SNR estimation of MIMO channel is realized by the programming and comparison of the CSI for the known channel CSI and the unknown channel.)

How to combine MATLAB and xls

计算64维的SIFT特征 可以直接运行 haoyong(Calculate the 64 dimensional SIFT feature can be run directly )

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.)