QPSK

用MATLAB实现的离散系统灰色PID位置跟中系统(MATLAB implementation of the discrete-time systems with PID position with the system of gray)

说明：  用matlab模拟圆孔衍射图像，入射光为平面波，衍射距离可以任意调节(Matlab simulation using circular aperture diffraction images, the incident light for the plane wave, diffraction can adjust the distance)

介绍了一种基于VB 后台调用ANSYS和MATLAB进行设计计算的方法。通过借助VB设计的参数化输入界面， 调用APDL编写的模型分析程序和MATLAB编写的可靠性计算程序，实现了在用户界面上以可视化的形式显示计算结果功 能，并应用于铁路接触网设计的可靠性计算中，结果显示证明了计算软件的可行性和实用性。(Describes the background of a call based on ANSYS and MATLAB VB design calculation. VB by using the design parameters of input interface, called APDL model prepared by the procedures and the reliability of computer program written in MATLAB, implementation in the user interface to visualize the results in the form of display features, and design used in railway catenary the reliability of the calculation, the results proved the feasibility and practicality of computing software.)

Matlab英文版电子文档教程English electronic document Matlab Tutorial(English electronic document Matlab Tutorial English electronic document Matlab Tutorial)

提供了4-psk的matlab源程序包，包括主函数和子函数，可供初学者学习参考。(Provides a 4-psk the matlab source code package, including the main function and Functions for beginners to learn the reference.)

元胞自动机模型中的BJH模型，用于模拟仿真交通流现象(Cellular automata model BJH model for simulation of traffic flow phenomena)

基于MATLAB的近似熵程序,主要用与生物信号的检测,主要用于生物医疗工程的信号处理方面(matlab program for calculating approximate entropy in biomedical signal processing especially.)

说明：  本文通过对目前常用的现代谱估计方法一一最大墒谱估计方法中的谱 峰幅度和谱线分辫率两个基本问题的分析和讨论，和经典的傅立叶谱估计方法作比 较，指出在最大墒谱估计方法的应用中应注意的几个问题。 (Based on the currently used modern spectral estimation method 11 method of maximum entropy spectral estimation of the spectral peak amplitude and spectral resolving power are two basic problems of analysis and discussion, and the classical Fourier spectrum estimation methods for comparison, that the maximum Application of entropy spectral estimation method should pay attention to several issues.)

采用m-line方法，matlab编程，通过棱镜耦合角计算波导薄膜的厚度h和折射率n。(Using m-line method, matlab programming, through the prism waveguide coupling angle calculated film thickness h and refractive index n.)

差分进化算法matlab源代码用于寻找函数极小值，附有多个测试函数(Differential evolution algorithm matlab source code used to find the minimum function, with multiple test functions)