QPSK_performance

passive Anti-islanding method(PJD)

使用matlab gui完成线性卷积和圆周卷积的动态演示系统，并且使用圆周卷积完成线性卷积，属于信号处理的基础应用(Matlab gui complete linear convolution and circular convolution dynamic presentation, and completion of the circular convolution linear convolution, are the basis of the signal processing applications)

说明：  找一幅曝光不足的灰度（或彩色图像），按照直方图均衡化方法进行处理(Underexposed to find a gray (or color image), according to the method of histogram equalization processing)

文件包含三个子文件：dec.m,test_dec.m,recon.m dec.m文件使用MATLAB语言自己动手编写小波分解算法； test_dec.m使用MATLAB语言测试dec.m文件中自己编写的小波Mallat分解算法正确性 recon.m使用MATLAB语言自己动手编写Mallat重构算法 函数使用MATLAB语言，没有调用MATLAB小波分解函数，而是自己动手编写的小波Mallat算法对含噪声的信号进行分解、重构；这对对小波分解的初学者，加深对小波分解有着引导作用。(The file contains three sub file: dec.m, test_dec.m, recon.m The dec.m file using the MATLAB language to write my own wavelet decomposition algorithm Wavelet Mallat test_dec.m using MATLAB language test in the dec.m file to write your own decomposition algorithm correctness Recon.m uses the MATLAB language to write my own Mallat reconstruction algorithm Function of the use of MATLAB language, do not call the MATLAB wavelet function, wavelet Mallat algorithm but prepare yourself for decomposition and reconstruction of signals containing noise this pair of wavelet decomposition for beginners, deepen their understanding of the wavelet decomposition has a guide role.)

math function for learning methods

船舶电站的仿真图，可以在09下直接运行，包括发电机，柴油机等。(Simulation diagram of ship power station can be run directly under the 09, including generators, diesel engine, etc.)

说明：  Image encryption code

说明：  该程序包含有matlab相关的工具箱，并提供了 相关的实现算例，可以为初学者使用(contains the procedures related to the Matlab toolbox, and provide relevant examples to achieve, for beginners)

led model by state space equations

信号数目估计错误的最大似然波达方向估计的性能分析(The number of signal estimation error of maximum likelihood DOA estimation performance analysis)