frequency_hopping

unconstrain function matlab code, optimizition benchmark problem (test problem) in matlab

MATLAB Codes to Calculate the Optical Power Distribution of LOS Link at Receiving Plane for a Typical Room (VLC)

说明：  二维艾里光束，阵列艾里光束，可改变光束直径以及距离(Two dimensional Airy beam, array Airy beam, variable beam diameter and distance)

一篇很好的学习Matlab的电子书籍，推荐(Matlab a good learning experience of e-books, recommend)

说明：  walsh和pn码的生成程序，用C语言实现，可供MATLAB调用(code generation process, using C language, calling for MATLAB)

龙格库塔方程,求解偏微分方程,主要用在光学领域(Runge-Kutta equations, solving partial differential equations, mainly used in the optical field)

这个有中文注释，看得明白，用平面波展开法计算二维声子晶体带隙,感应双馈发电机系统的仿真。( The Chinese have a comment, understand it, Computation Method D phononic bandgap plane wave, Simulation of doubly fed induction generator system.)

基于人工神经网络的常用数字信号调制，快速扩展随机生成树算法，可以得到很精确的幅值、频率、相位估计，加入重复控制，用于特征降维，特征融合，相关分析等,进行波形数据分析。( The commonly used digital signal modulation based on artificial neural network, Rapid expansion of random spanning tree algorithm, You can get a very accurate amplitude, frequency, phase estimation, Join repetitive control, For feature reduction, feature fusion, correlation analysis, Waveform data analysis.)

1、观察采样引起的混叠。 2、判别离散时间系统的时不变性。 3、利用卷积计算信号通过FIR滤波器的输出，并观察输出信号的input-on暂态、input-off暂态和稳态阶段。 (One to observe the sampling due to aliasing. 2, determine the time invariant discrete-time systems. 3, the use of convolution calculation of the signal through the FIR filter output, and observe the output signal of the input-on transient, input-off transient and steady-state phase.)

说明：  将图像从RGB颜色空间转换成lab颜色空间(Transfer image s color space from RGB to lab)