xiaoyongILC

说明：  本文介绍了MATLAB 语言的特点以及图像处理工具箱实现的经典图像处理 技术。应用该工具箱对一实拍的芯片图像进行前期预处理，通过实例验证了该语言具有强大的矩 阵运算与图形处理能力，是一种简洁易学，可读性强、功能强大的应用软件，对它的应用可以快 速实现模拟仿真，大大提高实验效率。(This article describes the characteristics of the MATLAB language and image processing toolbox to achieve the classic image processing techniques. Application of the toolbox of a chip shot is pre-image pre-processing, an example of the language has a powerful matrix calculation and graphics processing capability, is a simple and easy to learn, readable, and powerful software applications, on the its application can quickly achieve the simulation, significantly improve the efficiency of the experiment.)

its a matlab program ~~~~~ you can do tit

soumekh的SAR成像源代码，非常翔实经典！(soumekh SAR imaging source code, very informative classic!)

Adding Noise and the Restoring

将给定电流和网络画图,可对幅度和分量进行设置(draw picture as the given current and the mesh)

在无线通信体系中,由于开放的通信信道条件,卫星通信系统中通信链路容易受到平均大气条件的影响,尤其是采用Ka波段的高频信号的系统,容易受到降雨造成的雨衰影响,严重影响了系统的有效性和可靠性。(In a wireless communication system, the communication channel open, average atmospheric conditions vulnerable to the communication link in satellite communication system, especially the system of high frequency signal using Ka band, vulnerable to the influence of rain attenuation caused by rainfall, seriously affect the validity and reliability of the system. In digital systems, channel coding is often used to improve reliability, while modulation is used to ensure effectiveness. Low order modulation and large redundancy coding are adopted to improve the reliability.)

本例用五点差分法求解一个二阶偏微分方程，其间用Gauss-Seidel迭代求解(This example uses a five-point difference method for solving second order partial differential equations, during use Gauss-Seidel iterative)

黄金分割法，附带说明，程序可直接运行,,有实例说明，是数值最优化方面的(Golden section method, with instructions, the program can be run directly)

turbo_tst.m 是启动文件，利用bcjr算法进行Turbo码的仿真。同时为了进行比较，还进行了viterbi软译码的仿真。单独的turbo码的仿真主要就是bcjr.m程序，viterbi译码所需的文件比较多一点。(turbo_tst.m the startup files, the use of simulation algorithms bcjr Turbo codes. Meanwhile, in order for comparison, the viterbi decoding software for simulation. Simulation separate turbo code is mainly bcjr.m program, viterbi decoding files needed a little more.)

说明：  压缩感知（Compressed sensing），也被称为压缩采样(Compressive sampling)，稀疏采样(Sparse sampling)，压缩传感 [1] 。它作为一个新的采样理论，它通过开发信号的稀疏特性，在远小于Nyquist 采样率的条件下，用随机采样获取信号的离散样本，然后通过非线性重建算法完美的重建信号 [1] 。压缩感知理论一经提出，就引起学术界和工业界的广泛关注。(Compressed sensing (Compressed sensing), also known as compression sampling (Compressive from), Sparse sampling (Sparse from), Compressed sensing [1].As a new sampling theory, it develops the sparse characteristics of signals, obtains the discrete samples of signals with random sampling under the condition that the sampling rate is much lower than Nyquist sampling, and then perfectly reconstructs the signals through the nonlinear reconstruction algorithm [1].Once the theory of compressed sensing was put forward, it attracted extensive attention from academia and industry.)