Improving-Dictionary-Learning

用于随机值脉冲噪声去除的新方法，提出了一种新的脉冲噪声检测机制，结合保边缘的变分去除方法，得到了很好的效果(The new method for the removal of impulse noise of the random value, a new impulse noise detection mechanism, combined with the security edge of Variational removal method to obtain a good effect)

QPSK调制解调仿真 从基带信号产生——IQ映射——调制——信道加噪——解调——判决及反映射——接收信号输出，每个步骤都画出了图形。 (QPSK modulation and demodulation simulation generated from the baseband signal- IQ Mapping- Modulation- channel plus noise- demodulation- judgment and reflect radio- reception signal output, each step to draw the graph.)

STTD系统中的仿真程序，两个天线发送，两个接收天线，是DSTTD系统的基础，有利于自己程序的分析，(STTD system simulation program, two antennas, two receive antennas, the system performance simulation,)

此函数可以实现MATLAB，智能天线方向图函数程序的画法并且可以通过改变参数得到不同的方向图(Smart antenna pattern function MATLAB program)

一种非常实用的识别数字的matlab程序，内有使用说明(the code can be used to recognition numbers)

本程序模拟了火星、金星、水星等行星相对地球的运动轨迹，对于研究行星运动规律极有帮助。(This procedure simulated Mars, Venus, Mercury and other planets relative to Earth' s trajectory for the study of the law of planetary motion very helpful.)

用matlab仿真实现的雷达图像的几何畸变校正过程(using Matlab Simulation of radar images of the geometric distortion correction process)

牛顿环演示的MATLAB程序，采用滑动块改变参数，可视化输出，GUI界面(Newton s rings shows the MATLAB program, using the sliding block to change the parameters, visual output, GUI interface)

说明：  用于无线通信中天线仿真，matlab上的源代码，第四部分。(For wireless communications antenna simulation, matlab on the source code, Part IV.)

以一个dd.mat文件为例，编写如何在matlab中处理mat文件，得到其中的数据，虽然简单，但是很实用(Dd.mat file a case, write how to deal with mat files in matlab to get the data, although simple, but very practical)