disposal

This demo shows simple method of shape detection using Hough Transform

水声通信中信道的bellhop建模，用来生成信道的冲击响应(bellhop modeling underwater acoustic communication channel in, for generating shock response of the channel)

MIMO系统研究，MIMO系统中空时分组技术的研究(MIMO systems, MIMO systems hollow packet technology)

Graph k-means using 2 replacement centrois

This is other m file for research

modulate PSK or QAM

现代通信系统(matlab版本)第二版，第一章的第三个例题程序.(Modern communication systems (matlab version) second edition, the first chapter of the third Example program.)

minihelp to simulate in MATLAB for everyone, fot beginners too

一束5W 的线偏振光以Φ = 45 度方位角振动，垂直入射到玻璃 - 空气表面，该光束波长0.6μm，玻璃介质折射率1.54 @0.6m，当入射角θ从0-70 度变化时，通过给定条件，分别完成如下要求： 画出该光束反射光的光强曲线（I-θ）； 分析该反射光束的偏振态变化，画出偏振方向变化曲线（φ-θ）和偏振光束相位变化曲线 （Φ-θ）。 （注：光束从光密到光疏的界面，在入射角θ 从0-70 度变化中，包括了临界角θc）(Bunch of linearly polarized light 5W to Φ = 45 degrees azimuth vibration, normal incidence to the glass- air surface, the beam wavelength 0.6μm, glass refractive index 1.54 @ 0.6m, when the incident angle θ changes from 0-70 degrees By the given conditions, namely the completion of the following requirements: Draw the reflected light beam intensity curve (I-θ) analysis of changes in the polarization state of the reflected beam, draw the polarization direction of the curve (φ-θ) and polarized beam phase curve (Φ-θ). (Note: the light beam from the optical density of the interface is sparse, the incident angle θ  variation from 0-70, including the critical angle θc))

一个简单地一阶RC电路，观测值得测量，并通过安时积分法得到荷电状态(A simple first-order RC circuit. The observation is worth measuring and the state of charge is obtained by the time integral method.)