matlab_function

对要发送的序列进行上变频，上变频到21MHz后进行发送。(change the frequence uop to the one that suit for transmission,which here is 21MHz.)

A programmable-logic controller (PLC) is a compact computer-based electronic system that uses digital or analog input/output modules to control machines, processes, and other control modules. A PLC is able to receive (input) and transmit (output) various types of electrical and electronic signals and use them to control and monitor practically any kind of mechanical and/or electrical system.

This is a matlab code and is a beneficial source code about base mapping

说明：  这是录音放音的matlab源程序，程序精短且很实用(This is the audio playback of the matlab source code, procedures and practical short-precision)

说明：  研究在matlab环境下，fft的实现以及用matlab产生各种滤波器包括用双线性变换法以及脉冲响应不变法实现。(Research in the matlab environment, fft implementation and produce a variety of filters using matlab including the use of bilinear transform and impulse response method to achieve the same.)

计算阶跃折射率光纤传播常数、归一化频率、截止波长、导模数量等( Calculate for Step Index Fibers (using MATLAB): a) Propagation constant (β) b) Normalized propagation constant (b) c) V number (V) d) Check whether the fiber is single mode or multi mode. e) Graph between normalized propagation constant (b) and V number f) Cut off wavelength (λc) g) Number of modes traveling in fiber (Ms) )

光线追击程序，可以对光线的传播行为进行仿真，功能强大，绘图精美，将安装包放在MATLAB子目录下并进行相应设置即可使用。(Raytracing program, you can simulate the propagation of light, powerful, beautiful graphics, the package will be installed on the MATLAB subdirectory and make the appropriate settings to use.)

本代码为自己编写的SAD算法，通过blackcar序列验证了算法的正确性。(I have written the code for SAD algorithm, blackcar sequences show that the algorithm is correct.)

在matlab实现的遗传算法，不错!希望和大家一起分享……(matlab GA)

A signal-dependent rank ordered mean (SD-ROM) filter-a new approach for removal of impulses from highly corrupted images