PLL_simulation

wiener filter application for 1D, wav file example

Channel estimation techniques for OFDM systems based on a pilot arrangement are investigated. Channel estimation based on a comb type pilot arrangement is studied through different algorithms for both estimating the channel at pilot frequencies and interpolating the channel. Channel estimation at pilot frequencies is based on LS and LMS methods while channel interpolation is done using linear interpolation, second order interpolation, low-pass interpolation, spline cubic interpolation, and time domain interpolation. Time-domain interpolation is obtained by passing to the time domain by means of IDFT (inverse discrete Fourier transform), zero padding and going back to the frequency domain by DFT (discrete Fourier transform). In addition, channel estimation based on a block type pilot arrangement is performed by sending pilots in every sub-channel and using this estimation for a

给创新工场求职者的一封信 有兴趣的看一下(Innovative workshops to job seekers interested in a look at a letter)

This program was to recognize number plate region only from an image.

说明：  求解线性双曲型偏微分方程，有迎风格式和Las-Friedrichs两种差分格式，matlab源程序(Linear hyperbolic partial differential equations, there are upwind and two Las-Friedrichs difference scheme, matlab source)

打开一幅图片，对其进行个性化处理，包括亮度调整，去除噪声，细节化等等(open an image,we process it personally,including intensity adjust,remove noise and so on)

本程序可以显示常见激光模式分布图，如TE00，TE01,TE10,TE22等，有助于对激光横模的理解！(This program is to help students to understand to the laser mode )

首先是编写2个输入，1个输出的隶属度函数；接下来的是模糊规则，一共49条；然后用解模糊函数得出控制量U，这里输出的U就直接是精确量了，解模糊用到得规则是取隶属度最大的那个数即MOM算法。 显示的三个图形窗口分别是：模糊控制器内部原理图，以及2个输入，1个输出的隶属度函数图。 (Fuzzy PID controller MATLAB simulation program )

说明：  关于心电信号的仿真模型，包括滤波、平滑等信号处理(On the ECG of the simulation model, including filtering, smoothing and other signal processing)

Particle Swarm Optimization(PSO) Algorithm Matlab Codes for Vehicle Routing Problem With Time Window(VRPTW)