基于帧差法的背景提取

Matlab program, consists of few sub-program.

本程序为基于压缩感知的信道估计算法，其用途在于利用信道的稀疏性来降低导频的使用，获得较好的信道估计精度(This program is a compressed sensing based channel estimation algorithm, which uses the sparsity of the channel to reduce the use of pilot and obtain better channel estimation accuracy.)

一些血液模型动力学仿真的文章，希望能够对需要的同学有一些帮助。(Some of the blood dynamics simulation model of the article, I hope to be able to have some students who required help.)

MATLAB进入时显示的图标的程序实现,有动画效果!(MATLAB to enter the show when the program icon, animation!)

Beamforming or spatial filtering is a signal processing technique used in sensor arrays for directional signal

细胞神经网络，简称为CNN，由于其能够产生混沌吸引子，而被广泛应用于加密系统中，本代码为画出CNN的超混沌吸引子。(Neural networks, referred to as CNN, due to its ability to generate chaotic attractor, and is widely used encryption system, the code for drawing CNN super chaotic attractors.)

This program compress and recostruct using wavelets. We can select level of decomposition(here maximum 4 levels are given) of images using selected wavelet. For eg:-wavelets can be haar, db1, db2,dmey............... Decomposition can be viewed in figure. (Please note that select 256X256 image for better result.) Then compression can performed, PERFL2 give compression score. Then reconstruction can be performed. Each decompsition we can choose different threshold values. For each threshold value we can calculate mse,psnr,pq(picture quality), bit ratio etc. To get pq install pqs function . (This program compress and recostruct using wavelets. We can select level of decomposition (here maximum 4 levels are given) of images using selected wavelet.For eg:-wavelets can be haar, db1, db2, dmey ........ ....... Decomposition can be viewed in figure. (Please note that select 256X256 image for better result.) Then compression can performed, PERFL2 give compression score.Then reconstruction can be performed.Each decompsition we can choose different threshold values . For each threshold value we can calculate mse, psnr, pq (picture quality), bit ratio etc. To get pq install pqs function.)

STBC-OFDM中Alamouti的仿真实现,包括信道编译码和二进制信源(STBC-OFDM in the simulation implementation Alamouti, including channel encoding and decoding and binary source)

matlab库，用于导入和处理SRTM的DEM的源程序.注意仅支持 SRTM-3文件，不支持 SRTM-1文件(The Matlab SRTM Library is designed to be an easy-to-use interface for importing and manipulating NASA s Shuttle Radar Topography Mission (SRTM) Digital Elevation Model (DEM) dataset. )

说明：  papr 3种方法 slm pts c变换(papr 3 ways slm pts c transformation)