down_sampling

Matlab code for POC Algorithm

this is simmulation QPSK modulation in AWGN channel

a simple HTML scanner and tag balancer that enables application programmers to parse HTML documents and access the information.(a simple HTML scanner and tag balancer that enables application programmers to parse HTML documents and access the information)

matlab GUI 仪表盘指针 通过移动滑动条可以使虚拟仪表指针转动，同时LED 显示指针指示值(matlab GUI meterpanel by moving the slider you can make the virtual meter pointer rotate ,meanwhile the LED will show the value of the pointer)

二阶锁频环Matlab代码，使用叉积鉴频器，内有仿真图(TwoOrderPLL Matlab)

用Fourier变换求取信号的功率谱---周期图法 用Fourier变换求取信号的功率谱---分段周期图法 用Fourier变换求取信号的功率谱---welch方法 功率谱估计----多窗口法（multitaper method ,MTM法） 功率谱估计----最大熵法（maxmum entmpy method,MEM法） 功率谱估计----多信号分类法（multiple signal classification,music法）Fourier transform to strike a signal to the power spectrum - the cycle of plans Fourier transform to strike a signal to the power spectrum - Sub-cycle Method Fourier transform to strike a signal to the power spectrum --- welch method Power spectrum estimated more than window ---- Law (multitaper method, MTM) ---- Power spectrum estimate of maximum entropy (maxmum entmpy method, MEM) ---- More than the estimated power spectrum signal classification (multiple signal classification, music)(To strike a signal with Fourier transform power spectrum- periodogram to strike a signal with Fourier transform power spectrum- Sub-periodogram with Fourier transform power spectrum of the signal to strike-welch method of power spectrum estimation multi-window method (multitaper method, MTM method) Maximum entropy power spectrum estimation method (maxmum entmpy method, MEM law) power spectrum estimation multi-signal classification (multiple signal classification, music law) Fourier transform to strike a signal to the power spectrum- the cycle of plans Fourier transform to strike a signal to the power spectrum- Sub-cycle Method Fourier transform to strike a signal to the power spectrum- welch method Power spectrum estimated more than window Law (multitaper method, MTM) Power spectrum estimate of maximum entropy (maxmum entmpy method, MEM ) More than the estimated power spectrum signal classification (multiple signal classification, music))

mimo2乘2矩阵的仿真与应用，内有源码与注释源码，方便阅读理解(mimo2 by 2 matrix of simulation and application source code and comments within the source code to facilitate reading comprehension)

利用haar小波进行图像消除噪声 fir1: 1D filter-design (signal processing toolbox) following lines for proper rescaling of the noise, such that desired(Using haar wavelet image to eliminate noise fir1: 1D filter-design (signal processing toolbox) following lines for proper rescaling of the noise, such that desired)

说明：  包括了基于能量检测方法的信号检测，其中采用M2M4算法进行了噪声方差估计。本程序为MATLAB仿真，可以直接应用。(this program contains the energy-based signal detection method. and the M2M4 method is used to estimate the variance of the background noise.)

The activation function detected using MATLAB (Matrix laboratory) code