PCA

使用matlab编程实现可视化界面，界面是关于微波传输线及天线方向图。(Visualized using matlab programming interface, the interface is on the microwave transmission line and antenna.)

设信号 ，用 对x(t)采样得x(n)，是否会发生频谱混叠？现利用FFT分析其频谱。 1．编程绘制该信号的波形。 2．若令N=16，编程对x(n)做FFT运算，并绘制其幅频特性曲线。 3．令N=1024，编程对x(n)做FFT运算，并绘制其幅频特性曲线。 4．分析2、3的运算结果。 设计调试报告要求： 1．工作原理简述； 2．设计思路； 3．难点及解决方法； 4．设计、调试结果及分析； 5．程序文本及操作步骤。(based signal used to x (t) in the sample x (n), whether there will be a spectrum aliasing? FFT analysis is the use of their spectrum. 1. Programming mapping of the signal waveform. 2. If so N = 16, the programming of x (n) do FFT, and the mapping of its amplitude-frequency characteristic curve. 3. Order N = 1024, the programming of x (n) do FFT, and the mapping of its amplitude-frequency characteristic curve. 4. Analysis of two, three computational results. Design debugging reporting requirements : 1. Principle outlined; 2. Design; 3. Difficulties and solutions; 4. Design, debugging and analysis of results; 5. Text and operating procedures steps.)

说明：  对400幅灰度图像用分块PCA的方法进行压缩，进行通信时只用传输主元和特征向量。其中，pcaxiefangcha.m用于图像压缩，imresume.m用于图像恢复和部分图像的显示，chaweight.m用于绘制特征值比重-主元个数关系图，crdraw.m用于绘制压缩比-主元个数关系图，psnrdraw.m用于绘制总误差PSNR-主元个数关系图，psnrlocation.m用于绘制单幅图像误差PSNR分布图。(On the 400 block with a gray image compression method of PCA, to communicate only the main elements and characteristics of transfer vectors. Which, pcaxiefangcha.m for image compression, imresume.m parts of the image for image restoration and display, chaweight.m characteristic value for the draw weight- the main element number diagram, crdraw.m used to draw the compression ratio- the primary element number diagram, psnrdraw.m used to draw the total number of errors PSNR-principal component diagram, psnrlocation.m PSNR used to draw a single image error distribution.)

MATLAB是大家常用的开发工具，尤其是在研究生阶段和读博士期间，这是一个关于人工神经网络的matlab程序，可以运行的哦(MATLAB is commonly used development tools, especially at the graduate level and duration of the PhD, which is an artificial neural network on matlab program, you can run, oh)

这是用Gardner算法做的载波同步，其中用到了扩频系统中的PN序列，程序经过仿真，结果正确(Gardner Symbol synchronization )

SOR法求解病态线性方程组的MATLAB源代码(SOR method for solving ill-conditioned linear equations MATLAB source code)

说明：  多种群遗传算法的函数优化算法的MATLAB实现，有详细注释与案例解析(The MATLAB implementation of the function optimization algorithm of the multi-group genetic algorithm, with detailed notes and case analysis)

MLP 1-layer Nueral Network

motor simulation using Simulink software for beginners in drives

matlab优化设计,基于matlabR2009版本，对优化设计方面做了详细的理论分析及实例讲解(matlab optimization design, optimize the design based matlabR2009 version, detailed theoretical analysis and examples to explain)