approximate-principle

说明：  通过奇异值分解的方法对数字图像进行压缩达到节省存储空间的目的(Compression of digital image by singular value decomposition to save storage space)

实现发动机性能的计算，在matlab环境下简单可靠的运行(this can use at matlab to engine)

追赶法和LU（coolittle） 算法源程序。。。(coolittle algorithm source code)

自己写的人工蜂群算法，内带混沌搜索性质，主函数为funqun1，可随意改适应度函数，fitness。该程序简单易懂，方便修改，并且附有程序说明及相关参考论文，也附有本作者的联系方式。(Write your own artificial bee colony algorithm, with the chaotic nature of the search, the main function of funqun1, free to change the fitness function, fitness. The program is simple to understand, easy to modify, and with reference to the program description and related papers, but also with the author s contact information.)

This is a GUI based system. The GUI is invoked from the command line by typing "ui_start". The GUI is self explanatory. Tool tips are given in blue color. The cursor needs to be positioned on these for detailed explanation. The main file is "runsim.m". In these simulations the SISO option is not explicitly given. This is because the SISO result for a particular type of modulation is shown in every plot for purposes of comparison. This software has been tested on MATLAB version 6.0 and above with signal processing and communication toolbox options.(This is a GUI based system. The GUI is invoked from the command line by typing " ui_start" . The GUI is self explanatory. Tool tips are given in blue color. The cursor needs to be positioned on these for detailed explanation. The main file is " runsim.m" . In these simulations the SISO option is not explicitly given. This is because the SISO result for a particular type of modulation is shown in every plot for purposes of comparison. This software has been tested on MATLAB version 6.0 and above with signal processing and communication toolbox options.)

This code simulates QPSK modulation on base band. This code has been written on Matlab and it will be very useful I think! :)

三电平三相三线制APF，电流环采用dq轴控制，调制方式为SVPWM方法(Three-level three-phase three-wire APF, dq axis current loop control, modulation method of SVPWM)

详细讲解了KALMAN 滤波的理论和KALMAN 滤波应用背景,讲的很详细,适合教学!(Explained in detail the theory and KALMAN KALMAN filter filtering application background, speak in great detail, suitable for teaching!)

一个四维状态、二维观测的目标跟踪扩展卡尔曼滤波程序，附有详细的说明。(a four-state, two-dimensional observation of the target tracking extended Kalman filtering process, with detailed explanations.)

在matlab环境下，利用ode命令求解常微分方程组的学习算例(In the matlab environment, the use of the command for solving ordinary differential equations ode to learn examples)